fzca52 tjsj 110740
cwfsju
expires:202608112200;;985347

coastal waters forecast
national weather service san juan pr
340 am ast tue aug 11 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. 


amz712-112200-
coastal waters of northern puerto rico out 10 nm-
340 am ast tue aug 11 2026

...small craft should exercise caution...

.today...east winds 10 to 15 knots, increasing to 15 to 20 knots
this afternoon. gusts up to 30 knots. seas 4 to 5 feet, occasionally
to 6 feet. wave detail: northeast 5 feet at 6 seconds and northeast
1 foot at 9 seconds. isolated showers until late afternoon, then
scattered showers with isolated thunderstorms late. 
.tonight...east winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. seas around 4 feet, occasionally to 5 feet. wave
detail: northeast 4 feet at 6 seconds. scattered showers. 
.wednesday...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:
northeast 4 feet at 7 seconds. scattered showers in the afternoon. 
.wednesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. gusts up to 30 knots. seas 3 to 5 feet,
occasionally to 6 feet. wave detail: northeast 4 feet at 7 seconds.
scattered showers in the evening. 
.thursday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 6 seconds. 
.thursday night...east winds 15 to 20 knots with gusts up to
30 knots. seas 5 to 6 feet, occasionally to 8 feet. wave detail:
east 5 feet at 7 seconds. 
.friday...east winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. seas 5 to 7 feet, occasionally to 9 feet. 
.friday night...east winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. 
.saturday...east winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. 
.saturday night...east winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 110740
cwfsju
expires:202608112200;;985352

coastal waters forecast
national weather service san juan pr
340 am ast tue aug 11 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. 


amz735-112200-
coastal waters of southern puerto rico out 10 nm-
340 am ast tue aug 11 2026

...small craft should exercise caution...

.today...east winds 10 to 15 knots, increasing to 15 to 20 knots
this afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave
detail: east 3 feet at 6 seconds. isolated showers until late
afternoon, then scattered showers with isolated thunderstorms late. 
.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 3 feet at
6 seconds. scattered showers. 
.wednesday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: east 3 feet
at 5 seconds. 
.wednesday night...east winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 3 to 4 feet, occasionally to 5 feet.
wave detail: east 3 feet at 6 seconds. scattered showers in the
evening. 
.thursday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 6 seconds. 
.thursday night...east winds 15 to 20 knots with gusts up to
30 knots. seas 4 to 6 feet, occasionally to 8 feet. wave detail:
east 5 feet at 7 seconds. 
.friday...east winds 20 to 25 knots. seas 5 to 7 feet, occasionally
to 9 feet. 
.friday night...east winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. 
.saturday...east winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. 
.saturday night...northeast winds 15 to 20 knots. seas 5 to 6 feet,
occasionally to 8 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 110740
cwfsju
expires:202608112200;;985353

coastal waters forecast
national weather service san juan pr
340 am ast tue aug 11 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. 


amz741-112200-
mona passage southward to 17n-
340 am ast tue aug 11 2026

...small craft should exercise caution...

.today...east winds 15 to 20 knots, diminishing to 10 to 15 knots
late this morning and afternoon. seas 4 to 5 feet, occasionally to
6 feet. wave detail: east 4 feet at 6 seconds. isolated showers
until late afternoon, then scattered showers with isolated
thunderstorms late. 
.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
6 seconds. scattered showers. 
.wednesday...east winds 10 to 15 knots with gusts up to 25 knots.
seas around 4 feet, occasionally to 5 feet. wave detail: east 4 feet
at 7 seconds. scattered showers in the morning. 
.wednesday night...east winds 15 to 20 knots with gusts up to
25 knots. seas 4 to 5 feet, occasionally to 6 feet. wave detail:
east 4 feet at 7 seconds. scattered showers after midnight. 
.thursday...east winds 15 to 20 knots, increasing to 20 to 25 knots
in the afternoon. seas 4 to 6 feet, occasionally to 8 feet. wave
detail: southeast 6 feet at 6 seconds. 
.thursday night...east winds 15 to 20 knots, increasing to 20 to
25 knots after midnight. gusts up to 35 knots. seas 5 to 7 feet,
occasionally to 9 feet. wave detail: east 7 feet at 7 seconds. 
.friday...east winds 20 to 25 knots. seas 6 to 9 feet, occasionally
to 11 feet. 
.friday night...east winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. seas 6 to 9 feet, occasionally to 11 feet. 
.saturday...east winds 15 to 20 knots. seas 6 to 8 feet,
occasionally to 10 feet. 
.saturday night...northeast winds 15 to 20 knots. seas 6 to 8 feet,
occasionally to 10 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 110740
cwfsju
expires:202608112200;;985354

coastal waters forecast
national weather service san juan pr
340 am ast tue aug 11 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. 


amz742-112200-
coastal waters of northwestern puerto rico out 10 nm-
340 am ast tue aug 11 2026

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

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 110740
cwfsju
expires:202608112200;;985355

coastal waters forecast
national weather service san juan pr
340 am ast tue aug 11 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. 


amz745-112200-
coastal waters of southwestern puerto rico out 10 nm-
340 am ast tue aug 11 2026

.today...northeast winds 5 to 10 knots with gusts up to 20 knots,
becoming southeast late this morning, then increasing to 10 to
15 knots with gusts up to 20 knots early this afternoon, becoming
east 5 to 10 knots with gusts up to 20 knots late. seas around
2 feet. wave detail: south 1 foot at 5 seconds. scattered showers
with isolated thunderstorms early this afternoon. numerous showers
with isolated thunderstorms late. 
.tonight...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 5 seconds. scattered showers in the evening. 
.wednesday...southeast 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 5 seconds. 
.wednesday night...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 5 seconds. 
.thursday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 2 to 3 feet. wave detail: southeast 3 feet at 5 seconds. 
.thursday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. gusts up to 30 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: southeast 3 feet at 5 seconds. 
.friday...east winds 15 to 20 knots. seas 3 to 5 feet, occasionally
to 6 feet. 
.friday night...east winds 15 to 20 knots, diminishing to 5 to
10 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet. 
.saturday...east winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. seas 2 to 4 feet, occasionally to 5 feet.
scattered showers in the afternoon. 
.saturday night...northeast winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet. 

winds and seas higher in and near thunderstorms.

$$