fzca52 tjsj 120741
cwfsju
expires:202608122200;;045087

coastal waters forecast
national weather service san juan pr
341 am ast wed aug 12 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. 


amz712-122200-
coastal waters of northern puerto rico out 10 nm-
341 am ast wed aug 12 2026

...small craft should exercise caution...

.today...east winds 5 to 10 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots. seas 3 to
4 feet, occasionally to 5 feet. wave detail: northeast 4 feet at
7 seconds. scattered showers this morning, then numerous showers
with isolated thunderstorms this afternoon. 
.tonight...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
6 seconds. numerous showers, mainly in the evening. 
.thursday...east winds 15 to 20 knots with gusts up to 35 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 7 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 with gusts up to 35 knots. seas
5 to 7 feet, occasionally to 9 feet. wave detail: east 6 feet at
7 seconds and northeast 2 feet at 12 seconds. 
.friday night...east winds 15 to 20 knots with gusts up to 35 knots.
seas 5 to 6 feet, occasionally to 8 feet. wave detail: east 6 feet
at 8 seconds and northeast 2 feet at 12 seconds. 
.saturday...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet. 
.saturday night...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet. 
.sunday...east winds 15 to 20 knots. seas around 6 feet,
occasionally to 8 feet. scattered showers. 
.sunday night...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet. scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 120741
cwfsju
expires:202608122200;;045092

coastal waters forecast
national weather service san juan pr
341 am ast wed aug 12 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. 


amz735-122200-
coastal waters of southern puerto rico out 10 nm-
341 am ast wed aug 12 2026

.today...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. isolated showers early this morning, then scattered
showers late this morning. isolated showers this afternoon. 
.tonight...east winds 15 to 20 knots with gusts up to 30 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
5 seconds. scattered showers. 
.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 6 feet at 7 seconds. 
.friday...east winds 15 to 20 knots with gusts up to 30 knots. seas
5 to 7 feet, occasionally to 9 feet. wave detail: east 6 feet at
7 seconds. 
.friday 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 6 feet
at 8 seconds. 
.saturday...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. 
.saturday night...northeast winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. 
.sunday...northeast winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers in the afternoon. 
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 6 feet, occasionally to 8 feet.
scattered showers. 

$$

fzca52 tjsj 120741
cwfsju
expires:202608122200;;045093

coastal waters forecast
national weather service san juan pr
341 am ast wed aug 12 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. 


amz741-122200-
mona passage southward to 17n-
341 am ast wed aug 12 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. scattered showers early this morning. isolated showers
late this morning and early afternoon, then scattered showers late. 
.tonight...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. scattered showers in the evening, then numerous 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: east 6 feet at 6 seconds. 
.thursday night...east winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. seas 5 to 7 feet, occasionally to 9 feet.
wave detail: east 7 feet at 7 seconds. 
.friday...east winds 20 to 25 knots with gusts up to 30 knots. seas
6 to 9 feet, occasionally to 11 feet. wave detail: east 8 feet at
7 seconds. 
.friday night...east winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. seas 6 to 8 feet, occasionally to 10 feet.
wave detail: east 7 feet at 8 seconds. 
.saturday...east winds 15 to 20 knots. seas 5 to 8 feet,
occasionally to 10 feet. 
.saturday night...northeast winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet. 
.sunday...northeast winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. scattered showers in the afternoon. 
.sunday night...northeast winds 20 to 25 knots, becoming east 15 to
20 knots after midnight. seas 6 to 7 feet, occasionally to 9 feet.
scattered showers. 

$$

fzca52 tjsj 120741
cwfsju
expires:202608122200;;045094

coastal waters forecast
national weather service san juan pr
341 am ast wed aug 12 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. 


amz742-122200-
coastal waters of northwestern puerto rico out 10 nm-
341 am ast wed aug 12 2026

.today...east winds around 5 knots, becoming northeast this
afternoon. seas 2 to 3 feet. wave detail: northeast 3 feet at
6 seconds. numerous showers with isolated thunderstorms early this
afternoon. scattered showers with isolated thunderstorms late. 
.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
east 3 feet at 6 seconds. numerous showers in the evening. 
.thursday...east winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 25 knots in the afternoon. seas 2 to 3 feet. wave
detail: east 3 feet at 6 seconds. 
.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:
east 4 feet at 7 seconds. 
.friday...east winds 10 to 15 knots. gusts up to 30 knots in the
afternoon. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
east 4 feet at 7 seconds. 
.friday night...northeast winds 15 to 20 knots with gusts up to
30 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
northeast 4 feet at 6 seconds. 
.saturday...northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
scattered showers in the afternoon. 
.saturday night...northeast winds 15 to 20 knots. seas 3 to 5 feet,
occasionally to 6 feet. 
.sunday...northeast winds 15 to 20 knots. seas 3 to 5 feet,
occasionally to 6 feet. scattered showers in the afternoon. 
.sunday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 120741
cwfsju
expires:202608122200;;045095

coastal waters forecast
national weather service san juan pr
341 am ast wed aug 12 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. 


amz745-122200-
coastal waters of southwestern puerto rico out 10 nm-
341 am ast wed aug 12 2026

.today...east winds 5 to 10 knots with gusts up to 20 knots,
becoming southeast 10 to 15 knots with gusts up to 25 knots this
afternoon. seas 2 to 3 feet. wave detail: southeast 2 feet at
4 seconds. isolated showers. 
.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. scattered
showers. 
.thursday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 2 to 4 feet, occasionally to 5 feet. wave detail: southeast
3 feet at 4 seconds. 
.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 2 to 4 feet, occasionally to 5 feet. wave
detail: southeast 3 feet at 4 seconds. 
.friday...east winds 15 to 20 knots with gusts up to 30 knots. seas
2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet in the
afternoon. wave detail: east 3 feet at 5 seconds, becoming southeast
3 feet at 5 seconds. 
.friday night...east winds 15 to 20 knots with gusts up to 30 knots,
becoming northeast 5 to 10 knots after midnight. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: southeast 3 feet at 6 seconds. 
.saturday...northeast winds 5 to 10 knots, becoming southeast in the
afternoon. seas 2 to 3 feet. scattered showers in the afternoon. 
.saturday night...northeast winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet. 
.sunday...northeast winds 5 to 10 knots. seas 2 to 3 feet. numerous
showers in the afternoon. 
.sunday night...east winds 15 to 20 knots. seas 2 to 4 feet,
occasionally to 5 feet. 

$$