fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054109

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz110-210330-
kauai northwest waters-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas 4 to 5 feet.
wave detail: east 3 feet at 5 seconds. isolated showers this
morning, then scattered showers this afternoon. 
.tonight...east northeast winds 10 to 15 knots. seas to 4 feet.
scattered showers. 
.friday...east winds 7 to 10 knots in the morning, becoming
variable less than 10 knots. seas 3 to 4 feet. scattered showers,
mainly in the morning. 
.friday night...east winds 10 to 15 knots. seas 3 to 4 feet.
isolated showers in the evening, then scattered showers after
midnight. 
.saturday...east winds 10 to 15 knots. seas 4 to 5 feet. wave
detail: east 4 feet at 6 seconds and west northwest 3 feet at
11 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.saturday night...east winds 15 to 20 knots. seas 5 to 6 feet.
wave detail: east 5 feet at 7 seconds and west northwest 3 feet
at 12 seconds. scattered showers. 
.sunday...east northeast winds 20 to 25 knots. seas 5 to 7 feet.
wave detail: east 6 feet at 7 seconds and northwest 3 feet at
11 seconds. scattered showers, then heavy showers likely after
midnight. 
.monday...east winds to 20 knots. seas 6 to 8 feet. wave detail:
east 6 feet at 7 seconds and south southwest 3 feet at
12 seconds. heavy showers likely in the morning, then scattered
showers in the afternoon. heavy showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054110

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz111-210330-
kauai windward waters-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas 4 to 5 feet.
wave detail: east 3 feet at 5 seconds. isolated showers this
morning, then scattered showers this afternoon. 
.tonight...east northeast winds to 10 knots. seas to 4 feet.
scattered showers in the evening, then numerous showers after
midnight. 
.friday...winds variable less than 10 knots, becoming east
southeast 7 to 10 knots in the afternoon. seas 3 to 4 feet.
scattered showers, mainly in the morning. 
.friday night...east southeast winds 10 to 15 knots. seas 3 to
4 feet. wave detail: east southeast 3 feet at 6 seconds.
scattered showers. 
.saturday...east winds to 15 knots. seas 4 to 5 feet. wave
detail: east 4 feet at 6 seconds and west northwest 3 feet at
12 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.saturday night...east winds 15 to 20 knots. seas 6 to 7 feet.
wave detail: east 5 feet at 7 seconds and west northwest 3 feet
at 12 seconds. scattered showers. 
.sunday...east northeast winds 15 to 20 knots. seas 6 to 7 feet.
wave detail: east southeast 6 feet at 7 seconds, south southeast
3 feet at 9 seconds and west northwest 3 feet at 11 seconds.
scattered showers, then heavy showers likely after midnight. 
.monday...east winds to 20 knots. seas 7 to 8 feet. wave detail:
east southeast 6 feet at 7 seconds, south southeast 3 feet at
8 seconds and south southwest 3 feet at 12 seconds. heavy showers
likely in the morning, then scattered showers in the afternoon.
heavy showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054111

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz112-210330-
kauai leeward waters-
501 am hst thu aug 20 2026

.today...east winds 10 to 15 knots. seas 4 to 5 feet. wave
detail: east 3 feet at 5 seconds. isolated showers. 
.tonight...east northeast winds to 10 knots. seas to 4 feet.
isolated showers in the evening, then scattered showers after
midnight. 
.friday...east northeast winds 7 to 10 knots in the morning,
becoming variable less than 10 knots. seas 3 to 5 feet. scattered
showers, mainly in the morning. 
.friday night...winds variable less than 10 knots, becoming east
to 10 knots after midnight. seas 3 to 5 feet. wave detail: west
northwest 3 feet at 11 seconds. isolated showers in the evening,
then scattered showers after midnight. 
.saturday...east winds 10 to 15 knots. seas 4 to 6 feet. wave
detail: east 4 feet at 6 seconds and west northwest 3 feet at
11 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.saturday night...east northeast winds 15 to 20 knots. seas 5 to
8 feet. wave detail: east 5 feet at 7 seconds, southeast 4 feet
at 12 seconds and west northwest 3 feet at 12 seconds. scattered
showers. 
.sunday...east northeast winds 15 to 20 knots, rising to 20 to
25 knots. seas 6 to 9 feet. wave detail: east 7 feet at
7 seconds, southeast 4 feet at 12 seconds and northwest 3 feet at
11 seconds. scattered showers, then heavy showers likely after
midnight. 
.monday...east winds 15 to 20 knots. seas 6 to 9 feet. wave
detail: east 6 feet at 7 seconds, south southeast 4 feet at
9 seconds and south southwest 3 feet at 12 seconds. heavy showers
likely in the morning, then scattered showers in the afternoon.
heavy showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054112

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz113-210330-
kauai channel-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas 4 to 5 feet.
wave detail: east northeast 3 feet at 4 seconds. isolated
showers. 
.tonight...northeast winds 10 to 15 knots. seas 4 to 5 feet.
isolated showers in the evening, then scattered showers after
midnight. 
.friday...winds variable less than 10 knots. seas 3 to 5 feet.
scattered showers, mainly in the morning. 
.friday night...east northeast winds 7 to 10 knots, becoming
10 to 15 knots after midnight. seas 3 to 4 feet. wave detail:
east 3 feet at 6 seconds. isolated showers. 
.saturday...east northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. seas 4 to 5 feet. wave detail: east
4 feet at 6 seconds. isolated showers in the morning, then
scattered showers in the afternoon. 
.saturday night...east northeast winds to 20 knots. seas 6 to
7 feet. wave detail: east northeast 6 feet at 6 seconds.
scattered showers. 
.sunday...northeast winds 20 to 25 knots. seas 6 to 8 feet. wave
detail: east northeast 7 feet at 7 seconds and southeast 3 feet
at 13 seconds. scattered showers, then heavy showers likely after
midnight. 
.monday...east northeast winds 15 to 20 knots. seas 6 to 8 feet.
wave detail: east southeast 6 feet at 7 seconds and south
southwest 3 feet at 12 seconds. heavy showers likely in the
morning, then scattered heavy showers in the afternoon. heavy
showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054113

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz114-210330-
oahu windward waters-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas to 4 feet.
isolated showers this morning, then scattered showers this
afternoon. 
.tonight...east northeast winds 7 to 10 knots. seas 3 to 4 feet.
scattered showers in the evening, then numerous showers after
midnight. 
.friday...east winds to 10 knots. seas 3 to 5 feet. scattered
showers, mainly in the morning. 
.friday night...east winds to 15 knots. seas 3 to 5 feet. wave
detail: east 4 feet at 5 seconds. scattered showers. 
.saturday...east winds 15 to 20 knots. seas 4 to 6 feet. wave
detail: east 5 feet at 6 seconds and west northwest 3 feet at
12 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.saturday night...east northeast winds to 20 knots. seas 6 to
8 feet. wave detail: east 6 feet at 6 seconds, southeast 3 feet
at 10 seconds and west northwest 3 feet at 12 seconds. scattered
showers. 
.sunday...east northeast winds 20 to 25 knots. seas 6 to 8 feet.
wave detail: east 7 feet at 7 seconds, southeast 3 feet at
10 seconds and west northwest 3 feet at 11 seconds. scattered
showers, then heavy showers likely after midnight. 
.monday...east winds to 20 knots. seas 6 to 8 feet. wave detail:
east southeast 7 feet at 7 seconds and south southwest 3 feet at
12 seconds. heavy showers likely.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054114

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz115-210330-
oahu leeward waters-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas 3 to 5 feet.
wave detail: east 3 feet at 4 seconds. isolated showers this
afternoon. 
.tonight...east northeast winds 7 to 10 knots. seas 3 to 4 feet.
isolated showers in the evening, then scattered showers after
midnight. 
.friday...winds variable less than 10 knots. seas 3 to 5 feet.
scattered showers, mainly in the morning. 
.friday night...east northeast winds 7 to 10 knots. seas 3 to
5 feet. wave detail: southwest 3 feet at 16 seconds. isolated
showers. 
.saturday...east northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. seas 4 to 6 feet. wave detail: east
4 feet at 6 seconds and southwest 3 feet at 16 seconds. isolated
showers in the morning, then scattered showers in the afternoon. 
.saturday night...east northeast winds to 20 knots. seas 5 to
7 feet. wave detail: east northeast 6 feet at 6 seconds and
southeast 3 feet at 13 seconds. scattered showers. 
.sunday...northeast winds 20 to 25 knots, becoming east northeast
15 to 20 knots after midnight. seas 6 to 9 feet. wave detail:
east 7 feet at 7 seconds and southeast 3 feet at 13 seconds.
scattered showers through the night, then heavy showers likely
through the day. 
.monday...east winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east southeast 5 feet at 7 seconds and south southwest
3 feet at 13 seconds. heavy showers likely in the morning, then
scattered showers in the afternoon. heavy showers likely through
the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054115

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz116-210330-
kaiwi channel-
501 am hst thu aug 20 2026

.today...northeast winds 10 to 15 knots. seas 3 to 4 feet.
scattered showers this afternoon. 
.tonight...east northeast winds 7 to 10 knots. seas 3 to 4 feet.
scattered showers. 
.friday...east northeast winds 7 to 10 knots. seas 3 to 5 feet.
scattered showers, mainly in the morning. 
.friday night...east northeast winds 10 to 15 knots. seas 3 to
4 feet. wave detail: east 3 feet at 5 seconds. scattered showers,
mainly in the evening. 
.saturday...east northeast winds to 15 knots, rising to 20 knots
in the afternoon. seas 4 to 6 feet. wave detail: east northeast
5 feet at 6 seconds. isolated showers in the morning, then
scattered showers in the afternoon. 
.saturday night...east northeast winds to 20 knots. seas 6 to
7 feet. wave detail: northeast 6 feet at 6 seconds. scattered
showers. 
.sunday...east northeast winds 20 to 25 knots. seas 6 to 8 feet.
wave detail: east southeast 7 feet at 7 seconds. scattered
showers through the night, then heavy showers through the day. 
.monday...east winds 15 to 20 knots. seas 5 to 8 feet. wave
detail: east northeast 7 feet at 6 seconds, south southeast
3 feet at 7 seconds and south southwest 3 feet at 13 seconds.
heavy showers likely in the morning, then scattered showers in
the afternoon. heavy showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054116

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz117-210330-
maui county windward waters-
501 am hst thu aug 20 2026

.today...northeast winds 7 to 10 knots. seas 3 to 4 feet.
isolated showers this morning, then scattered showers this
afternoon. 
.tonight...east winds 7 to 10 knots. seas 3 to 4 feet. scattered
showers in the evening, then numerous showers after midnight. 
.friday...east southeast winds 10 to 15 knots. seas 3 to 5 feet.
wave detail: east southeast 3 feet at 5 seconds. scattered
showers. 
.friday night...east winds to 15 knots. seas 3 to 5 feet. wave
detail: east 4 feet at 5 seconds. scattered showers. 
.saturday...east winds 15 to 20 knots. seas 4 to 6 feet. wave
detail: east northeast 5 feet at 6 seconds and southeast 3 feet
at 10 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.saturday night...east winds to 20 knots. seas 6 to 8 feet. wave
detail: east northeast 6 feet at 6 seconds and southeast 5 feet
at 11 seconds. scattered showers. 
.sunday...east winds 20 to 25 knots. seas 7 to 8 feet. wave
detail: east 7 feet at 6 seconds and southeast 5 feet at
11 seconds. scattered heavy showers through the night, then heavy
showers through the day. 
.monday...east winds 20 to 25 knots. seas 7 to 8 feet. wave
detail: east southeast 7 feet at 7 seconds. heavy showers likely.

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054117

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz118-210330-
maui county leeward waters-
501 am hst thu aug 20 2026

.today...northeast winds 10 to 15 knots. seas 3 to 4 feet. 
.tonight...east northeast winds 7 to 10 knots. seas 3 to 4 feet.
scattered showers after midnight. 
.friday...east northeast winds 7 to 10 knots in the morning,
becoming variable less than 10 knots. seas 3 to 5 feet. wave
detail: southwest 3 feet at 16 seconds. scattered showers, mainly
in the morning. 
.friday night...east northeast winds 7 to 10 knots, backing to
northeast 10 to 15 knots after midnight. seas 3 to 5 feet. wave
detail: southwest 3 feet at 16 seconds. isolated showers. 
.saturday...north northeast winds 7 to 10 knots, veering to east
northeast 10 to 15 knots in the afternoon. seas 4 to 6 feet. wave
detail: east 3 feet at 6 seconds and southwest 3 feet at
16 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.saturday night...northeast winds 10 to 15 knots. seas 3 to
5 feet. wave detail: east 4 feet at 7 seconds. scattered showers.
.sunday...northeast winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east 6 feet at 7 seconds and south southeast 3 feet at
13 seconds. scattered showers through the night, then heavy
showers likely through the day. 
.monday...east winds 15 to 20 knots, easing to 10 to 15 knots.
seas 4 to 6 feet. wave detail: southeast 4 feet at 7 seconds and
south southwest 3 feet at 13 seconds. heavy showers likely in the
morning, then scattered showers in the afternoon. heavy showers
likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054118

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz119-210330-
maalaea bay-
501 am hst thu aug 20 2026

.today...north winds to 15 knots. seas to 3 feet. isolated
showers this afternoon. 
.tonight...north winds to 15 knots. seas to 3 feet. isolated
showers after midnight. 
.friday...north winds to 15 knots, becoming north northeast in
the afternoon. seas to 3 feet. isolated showers. 
.friday night...north winds to 20 knots. seas to 2 feet or less.
isolated showers in the evening. 
.saturday...north winds to 25 knots. seas to 2 feet or less. wave
detail: north northeast 2 feet at 3 seconds. scattered showers in
the afternoon. 
.saturday night...north winds to 25 knots. seas to 2 feet or
less. wave detail: north northeast 2 feet at 3 seconds. isolated
showers after midnight. 
.sunday...north winds to 25 knots, becoming 25 to 30 knots. seas
3 to 4 feet. wave detail: north northeast 4 feet at 4 seconds.
scattered showers in the morning, then heavy showers likely. 
.monday...north winds 20 to 25 knots. gusts up to 40 knots. seas
to 3 feet. wave detail: northeast 3 feet at 4 seconds and
southwest 3 feet at 7 seconds. heavy showers likely.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054119

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz120-210330-
pailolo channel-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas 3 to 4 feet.
isolated showers. 
.tonight...east northeast winds 10 to 15 knots. seas 3 to 4 feet.
scattered showers. 
.friday...northeast winds 10 to 15 knots, becoming east 15 to
20 knots in the afternoon. seas 3 to 5 feet. scattered showers,
mainly in the morning. 
.friday night...east northeast winds 15 to 20 knots. seas to
3 feet. isolated showers. 
.saturday...east northeast winds 20 to 25 knots. seas 3 to
4 feet. wave detail: east northeast 4 feet at 5 seconds. isolated
showers in the morning, then scattered showers in the afternoon. 
.saturday night...east northeast winds 20 to 25 knots. seas 3 to
5 feet. wave detail: east northeast 4 feet at 6 seconds.
scattered showers. 
.sunday...east northeast winds 20 to 25 knots, rising to 25 to
30 knots in the afternoon and evening, easing to 20 to 25 knots
after midnight. seas 4 to 6 feet. wave detail: east northeast
6 feet at 6 seconds. scattered showers in the morning, then heavy
showers likely. 
.monday...east northeast winds 20 to 25 knots, easing to 15 to
20 knots after midnight. seas 4 to 6 feet. wave detail: east
northeast 4 feet at 6 seconds and southwest 3 feet at 12 seconds.
heavy showers likely.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054120

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz121-210330-
alenuihaha channel-
501 am hst thu aug 20 2026

.today...northeast winds 10 to 15 knots. seas 3 to 5 feet. wave
detail: east northeast 3 feet at 4 seconds. scattered showers
this afternoon. 
.tonight...east northeast winds 10 to 15 knots. seas 3 to 5 feet.
scattered showers. 
.friday...east winds 10 to 15 knots, becoming east northeast
15 to 20 knots in the afternoon. seas 4 to 6 feet. wave detail:
east northeast 3 feet at 5 seconds. scattered showers, mainly in
the morning. 
.friday night...east northeast winds 15 to 20 knots. seas 3 to
5 feet. wave detail: east northeast 4 feet at 5 seconds and
southwest 3 feet at 16 seconds. scattered showers. 
.saturday...east northeast winds 20 to 25 knots. seas 5 to
7 feet. wave detail: east northeast 6 feet at 6 seconds and
southwest 3 feet at 16 seconds. isolated showers in the morning,
then scattered showers in the afternoon. 
.saturday night...east northeast winds 25 to 30 knots, easing to
20 to 25 knots after midnight. seas 6 to 9 feet. wave detail:
east northeast 7 feet at 6 seconds. isolated showers in the
evening, then scattered showers after midnight. 
.sunday...east northeast winds 25 to 30 knots, easing to 20 to
25 knots after midnight. seas 7 to 10 feet. wave detail: east
northeast 9 feet at 7 seconds and south southeast 3 feet at
13 seconds. scattered showers through the night, then heavy
showers through the day. 
.monday...east northeast winds 15 to 20 knots. gusts up to
40 knots. seas 6 to 8 feet. wave detail: east northeast 6 feet at
6 seconds and south southwest 3 feet at 13 seconds. heavy showers
likely in the morning, then scattered showers in the afternoon.
heavy showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054121

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz122-210330-
big island windward waters-
501 am hst thu aug 20 2026

.today...northeast winds 10 to 15 knots. seas 3 to 4 feet.
isolated showers this morning, then scattered showers this
afternoon. 
.tonight...east winds 7 to 10 knots. seas 3 to 4 feet. scattered
showers in the evening, then numerous showers after midnight. 
.friday...east winds 10 to 15 knots. seas 3 to 5 feet. wave
detail: east northeast 3 feet at 4 seconds. scattered showers. 
.friday night...east winds to 15 knots. seas 3 to 4 feet. wave
detail: east northeast 3 feet at 4 seconds. scattered showers. 
.saturday...east northeast winds 15 to 20 knots. seas 4 to
5 feet. wave detail: north northeast 4 feet at 5 seconds and
southeast 3 feet at 9 seconds. scattered showers. 
.saturday night...east northeast winds 20 to 25 knots. seas 6 to
8 feet. wave detail: southeast 6 feet at 11 seconds and north
northeast 5 feet at 6 seconds. scattered showers in the evening,
then heavy showers after midnight. 
.sunday...east winds 20 to 25 knots. seas 6 to 9 feet. wave
detail: northeast 6 feet at 6 seconds, southeast 6 feet at
11 seconds and south southwest 3 feet at 14 seconds. heavy
showers. 
.monday...east southeast winds 20 to 25 knots, becoming east
15 to 20 knots. seas 5 to 8 feet. wave detail: east southeast
4 feet at 5 seconds, southeast 3 feet at 9 seconds and south
southwest 3 feet at 13 seconds. heavy showers.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054122

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz123-210330-
big island leeward waters-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots, backing to north
northeast 7 to 10 knots this afternoon. seas 3 to 5 feet.
isolated showers this afternoon. 
.tonight...east northeast winds 7 to 10 knots, veering to south
southeast 10 to 15 knots after midnight. seas 3 to 5 feet.
isolated showers in the evening, then scattered showers after
midnight. 
.friday...north northeast winds 10 to 15 knots. seas 4 to 6 feet.
scattered showers, mainly in the morning. 
.friday night...southeast winds 10 to 15 knots, becoming
northeast 15 to 20 knots after midnight. seas 4 to 6 feet. wave
detail: east northeast 3 feet at 5 seconds and west northwest
3 feet at 11 seconds. isolated showers in the evening, then
scattered showers after midnight. 
.saturday...east winds 15 to 20 knots, backing to north in the
afternoon. seas 4 to 6 feet. wave detail: east northeast 4 feet
at 6 seconds and west northwest 3 feet at 11 seconds. isolated
showers in the morning, then scattered showers in the afternoon. 
.saturday night...northeast winds 15 to 20 knots. seas 5 to
7 feet. wave detail: northeast 5 feet at 7 seconds, southeast
4 feet at 12 seconds and west northwest 3 feet at 11 seconds.
scattered showers. 
.sunday...east northeast winds 15 to 20 knots, rising to 25 to
30 knots in the afternoon and evening, veering to east 20 to
25 knots after midnight. seas 6 to 9 feet. wave detail: northeast
6 feet at 7 seconds, southeast 5 feet at 12 seconds and south
southwest 3 feet at 14 seconds. heavy showers likely in the
morning, then scattered heavy showers in the afternoon. heavy
showers through the day. 
.monday...east winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east 4 feet at 5 seconds, south southeast 3 feet at
9 seconds and south southwest 3 feet at 13 seconds. heavy showers
likely in the morning, then scattered showers in the afternoon.
heavy showers likely through the day.  

$$

fzhw50 phfo 201501
cwfhfo
expires:202608210330;;054123

coastal waters forecast
national weather service honolulu hi
501 am hst thu aug 20 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz124-210330-
big island southeast waters-
501 am hst thu aug 20 2026

.today...east northeast winds 10 to 15 knots. seas 3 to 4 feet.
isolated showers this morning, then scattered showers this
afternoon. 
.tonight...east northeast winds 10 to 15 knots. seas 3 to 5 feet.
scattered showers in the evening, then numerous showers after
midnight. 
.friday...east northeast winds to 15 knots. seas 4 to 6 feet.
wave detail: east 4 feet at 4 seconds. scattered showers. 
.friday night...east northeast winds 15 to 20 knots. seas 4 to
6 feet. wave detail: east northeast 5 feet at 5 seconds and west
northwest 3 feet at 11 seconds. scattered showers. 
.saturday...east northeast winds 20 to 25 knots. seas 6 to
8 feet. wave detail: northeast 7 feet at 6 seconds, southeast
3 feet at 11 seconds and west northwest 3 feet at 11 seconds.
isolated showers in the morning, then scattered showers in the
afternoon. 
.saturday night...northeast winds 25 to 30 knots. seas 8 to
11 feet. wave detail: east northeast 9 feet at 7 seconds,
southeast 6 feet at 12 seconds and west northwest 3 feet at
11 seconds. heavy showers. 
.sunday...northeast winds 25 to 30 knots, veering to east
northeast 20 to 25 knots. seas 7 to 10 feet. wave detail: east
northeast 9 feet at 7 seconds, southeast 6 feet at 12 seconds and
south southwest 3 feet at 14 seconds. heavy showers. 
.monday...east winds 15 to 20 knots. gusts up to 35 knots. seas
5 to 8 feet. wave detail: east 4 feet at 4 seconds, southeast
3 feet at 9 seconds and south southwest 3 feet at 14 seconds.
heavy showers likely in the morning, then scattered showers in
the afternoon. heavy showers likely through the day.  

$$