fzca52 tjsj 180731
cwfsju
expires:202608182015;;925148

coastal waters forecast
national weather service san juan pr
331 am ast tue aug 18 2026

puerto rico and the u.s. virgin islands waters  

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz712-182015-
coastal waters of northern puerto rico out 10 nm-
331 am ast tue aug 18 2026

.today...east winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 25 knots late this morning and afternoon. seas 3 to
4 feet, occasionally to 5 feet. wave detail: east 4 feet at
8 seconds. isolated showers. 
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
8 seconds. scattered showers after midnight. 
.wednesday...east winds 10 to 15 knots with gusts up to 25 knots.
seas around 3 feet. wave detail: east 3 feet at 8 seconds. scattered
showers. 
.wednesday night...southeast winds 10 to 15 knots with gusts up to
20 knots. seas around 3 feet. wave detail: east 3 feet at 8 seconds.
scattered showers. 
.thursday...east winds 10 to 15 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots in the
afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave detail:
east 4 feet at 5 seconds and northeast 4 feet at 8 seconds. numerous
showers in the morning. 
.thursday night...east winds 15 to 20 knots with gusts up to
30 knots, diminishing to 10 to 15 knots with gusts up to 20 knots
after midnight. seas 4 to 5 feet, occasionally to 6 feet. wave
detail: northeast 4 feet at 7 seconds. 
.friday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 4 to 5 feet, occasionally to 6 feet. 
.friday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
scattered showers. 
.saturday...east winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. seas 4 to 5 feet, occasionally to 6 feet. 
.saturday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet. 

$$

fzca52 tjsj 180731
cwfsju
expires:202608182015;;925153

coastal waters forecast
national weather service san juan pr
331 am ast tue aug 18 2026

puerto rico and the u.s. virgin islands waters  

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz735-182015-
coastal waters of southern puerto rico out 10 nm-
331 am ast tue aug 18 2026

.today...east winds 5 to 10 knots, increasing to 10 to 15 knots late
this morning and afternoon. gusts up to 25 knots. seas 2 to 3 feet.
wave detail: east 3 feet at 6 seconds. isolated showers. 
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
2 to 4 feet, occasionally to 5 feet. wave detail: east 3 feet at
5 seconds. scattered showers after midnight. 
.wednesday...southeast winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: east 3 feet at 7 seconds.
scattered showers. 
.wednesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: east 3 feet at 5 seconds
and east 1 foot at 8 seconds. 
.thursday...east winds 15 to 20 knots with gusts up to 25 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet
at 5 seconds and east 1 foot at 8 seconds. scattered showers in the
morning. 
.thursday night...east winds 15 to 20 knots with gusts up to
25 knots. seas 3 to 5 feet, occasionally to 6 feet. wave detail:
southeast 4 feet at 6 seconds. 
.friday...east winds 15 to 20 knots. seas 3 to 5 feet, occasionally
to 6 feet. 
.friday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. 
.saturday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. 
.saturday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. 

$$

fzca52 tjsj 180731
cwfsju
expires:202608182015;;925154

coastal waters forecast
national weather service san juan pr
331 am ast tue aug 18 2026

puerto rico and the u.s. virgin islands waters  

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz741-182015-
mona passage southward to 17n-
331 am ast tue aug 18 2026

.today...east winds 10 to 15 knots with gusts up to 20 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
6 seconds and northeast 1 foot at 10 seconds. isolated showers. 
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
7 seconds. scattered showers after midnight. 
.wednesday...east winds 15 to 20 knots, becoming southeast 10 to
15 knots in the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
wave detail: east 4 feet at 6 seconds. scattered showers in the
morning. 
.wednesday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 4 feet, occasionally to 5 feet. wave detail:
southeast 4 feet at 5 seconds and northeast 1 foot at 8 seconds. 
.thursday...east winds 15 to 20 knots with gusts up to 25 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 7 seconds. scattered showers. 
.thursday night...east winds 15 to 20 knots with gusts up to
25 knots. seas 3 to 5 feet, occasionally to 6 feet. wave detail:
southeast 5 feet at 6 seconds and northeast 1 foot at 8 seconds.
scattered showers. 
.friday...east winds 15 to 20 knots. seas 4 to 6 feet, occasionally
to 8 feet. scattered showers in the afternoon. 
.friday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. 
.saturday...east winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. seas 4 to 6 feet, occasionally to 8 feet.
scattered showers in the morning. 
.saturday night...east winds 15 to 20 knots. seas 4 to 5 feet,
occasionally to 6 feet. 

$$

fzca52 tjsj 180731
cwfsju
expires:202608182015;;925155

coastal waters forecast
national weather service san juan pr
331 am ast tue aug 18 2026

puerto rico and the u.s. virgin islands waters  

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz742-182015-
coastal waters of northwestern puerto rico out 10 nm-
331 am ast tue aug 18 2026

.today...northeast winds 5 to 10 knots, becoming northeast 5 to
10 knots with gusts up to 20 knots this afternoon. seas 2 to 3 feet.
wave detail: east 2 feet at 5 seconds and northeast 2 feet at
9 seconds. isolated showers early this afternoon. scattered showers
late. 
.tonight...east winds 10 to 15 knots with gusts up to 20 knots. seas
2 to 3 feet. wave detail: east 2 feet at 5 seconds and northeast
2 feet at 8 seconds. 
.wednesday...east winds 5 to 10 knots, diminishing to around 5 knots
in the afternoon. seas 2 to 3 feet. wave detail: northeast 2 feet at
5 seconds and northeast 1 foot at 8 seconds. numerous showers in the
afternoon. 
.wednesday night...east winds 5 to 10 knots. seas around 2 feet.
wave detail: southeast 2 feet at 4 seconds and northeast 1 foot at
8 seconds. scattered showers. 
.thursday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
south 1 foot at 5 seconds and northeast 1 foot at 8 seconds.
scattered showers in the afternoon. 
.thursday night...east winds 5 to 10 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: north 3 feet at 7 seconds.
scattered showers. 
.friday...northeast winds 5 to 10 knots. seas 2 to 3 feet. scattered
showers in the afternoon. 
.friday night...east winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. 
.saturday...east winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. seas 2 to 3 feet. numerous showers in the
afternoon. 
.saturday night...east winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. 

$$

fzca52 tjsj 180731
cwfsju
expires:202608182015;;925156

coastal waters forecast
national weather service san juan pr
331 am ast tue aug 18 2026

puerto rico and the u.s. virgin islands waters  

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz745-182015-
coastal waters of southwestern puerto rico out 10 nm-
331 am ast tue aug 18 2026

.today...east winds around 5 knots, becoming south early this
afternoon, then becoming north late. seas around 2 feet. wave
detail: north 1 foot at 4 seconds and southeast 1 foot at 5 seconds.
isolated showers early this afternoon. scattered showers late. 
.tonight...east winds 5 to 10 knots. seas around 2 feet. wave
detail: north 1 foot at 4 seconds and southeast 1 foot at 5 seconds.
.wednesday...southeast winds 10 to 15 knots with gusts up to
25 knots. seas around 2 feet. wave detail: southeast 2 feet at
3 seconds and north 1 foot at 4 seconds. scattered showers in the
afternoon. 
.wednesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas around 2 feet. wave detail: southeast 2 feet at
4 seconds. 
.thursday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 2 to 3 feet. wave detail: southeast 2 feet at 5 seconds and
north 1 foot at 6 seconds. scattered showers in the afternoon. 
.thursday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 2 to 3 feet. wave detail: southeast 3 feet at
6 seconds and north 1 foot at 7 seconds. 
.friday...east winds 5 to 10 knots, becoming southeast in the
afternoon. seas 2 to 3 feet. 
.friday night...east winds 5 to 10 knots. seas 2 to 3 feet. 
.saturday...east winds 5 to 10 knots. seas 2 to 3 feet. scattered
showers in the afternoon. 
.saturday night...east winds 5 to 10 knots. seas 2 to 3 feet. 

$$