fzca52 tjsj 122107
cwfsju
expires:202608130930;;077957

coastal waters forecast
national weather service san juan pr
507 pm 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. 


amz712-130930-
coastal waters of northern puerto rico out 10 nm-
507 pm ast wed aug 12 2026

.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
around 4 feet, occasionally to 5 feet. wave detail: northeast 4 feet
at 6 seconds. numerous showers early this evening. isolated
thunderstorms until early morning. scattered showers late this
evening and overnight. 
.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 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, increasing to 20 to 25 knots in
the afternoon. seas 5 to 7 feet, occasionally to 9 feet. wave
detail: east 6 feet at 7 seconds and northeast 1 foot at 12 seconds.
.friday 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 6 feet
at 8 seconds and northeast 1 foot at 12 seconds. 
.saturday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 6 to 7 feet, occasionally to 9 feet. wave detail: northeast
6 feet at 7 seconds and northeast 1 foot at 12 seconds. 
.saturday night...east winds 15 to 20 knots with gusts up to
30 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 20 to 25 knots, diminishing to 15 to
20 knots after midnight. seas 6 to 7 feet, occasionally to 9 feet.
scattered showers. 
.monday...east winds 10 to 15 knots. seas 6 to 7 feet, occasionally
to 9 feet, subsiding to 5 feet, occasionally to 6 feet in the
afternoon. scattered showers in the morning, then numerous showers
in the afternoon. 
.monday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 122107
cwfsju
expires:202608130930;;077962

coastal waters forecast
national weather service san juan pr
507 pm 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. 


amz735-130930-
coastal waters of southern puerto rico out 10 nm-
507 pm ast wed aug 12 2026

...small craft should exercise caution...

.tonight...east winds 15 to 20 knots with gusts up to 25 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: southeast 4 feet
at 5 seconds. numerous showers this evening. isolated thunderstorms.
scattered showers after midnight. 
.thursday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: southeast
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:
southeast 5 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: southeast 5 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 4 feet
at 7 seconds. 
.saturday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 4 to 6 feet, occasionally to 8 feet. wave detail: southeast
4 feet at 7 seconds. 
.saturday night...northeast winds 15 to 20 knots with gusts up to
30 knots. seas 4 to 6 feet, occasionally to 8 feet. 
.sunday...east 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. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers. 
.monday...east winds 10 to 15 knots. seas 4 to 6 feet, occasionally
to 8 feet. numerous showers, mainly in the morning. 
.monday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet. scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 122107
cwfsju
expires:202608130930;;077963

coastal waters forecast
national weather service san juan pr
507 pm 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. 


amz741-130930-
mona passage southward to 17n-
507 pm ast wed aug 12 2026

...small craft should exercise caution...
...small craft advisory in effect from thursday evening through
sunday afternoon...

.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 this evening. isolated thunderstorms.
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 7 seconds. 
.thursday night...east winds 20 to 25 knots with gusts up to
30 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, diminishing to 15 to 20 knots
in the afternoon. seas 6 to 9 feet, occasionally to 11 feet. wave
detail: east 7 feet at 7 seconds. 
.friday night...east winds 15 to 20 knots with gusts up to 30 knots.
seas 6 to 8 feet, occasionally to 10 feet. wave detail: east 7 feet
at 8 seconds. 
.saturday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 5 to 8 feet, occasionally to 10 feet. wave detail: northeast
6 feet at 7 seconds. 
.saturday night...northeast winds 15 to 20 knots with gusts up to
30 knots. seas 6 to 7 feet, occasionally to 9 feet. 
.sunday...east winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. seas 5 to 7 feet, occasionally to 9 feet. scattered
showers in the afternoon. 
.sunday night...east winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. seas 6 to 7 feet, occasionally to 9 feet.
scattered showers. 
.monday...east winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. seas 5 to 6 feet, occasionally to 8 feet. numerous
showers, mainly in the morning. 
.monday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet. scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 122107
cwfsju
expires:202608130930;;077964

coastal waters forecast
national weather service san juan pr
507 pm 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. 


amz742-130930-
coastal waters of northwestern puerto rico out 10 nm-
507 pm ast wed aug 12 2026

.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
northeast 2 feet at 7 seconds and south 1 foot at 5 seconds.
numerous showers with isolated thunderstorms early this evening,
then scattered showers late this evening. isolated showers after
midnight. 
.thursday...east winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. seas 2 to 3 feet. wave
detail: south 2 feet at 5 seconds and northeast 2 feet at 6 seconds.
scattered showers in the afternoon. 
.thursday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
northeast 3 feet at 7 seconds and south 2 feet at 5 seconds. 
.friday...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 7 seconds and south 1 foot at 5 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 7 seconds and south 1 foot at 6 seconds. 
.saturday...northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. gusts up to 30 knots. seas 3 to 5 feet,
occasionally to 6 feet. wave detail: northeast 4 feet at 7 seconds
and south 1 foot at 6 seconds. scattered showers in the afternoon. 
.saturday night...northeast winds 15 to 20 knots with gusts up to
30 knots. seas 3 to 5 feet, occasionally to 6 feet. 
.sunday...northeast winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
scattered showers in the afternoon. 
.sunday night...east winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. seas 4 to 6 feet, occasionally to 8 feet.
scattered showers. 
.monday...east winds 5 to 10 knots. seas 3 to 5 feet, occasionally
to 6 feet. scattered showers in the morning, then numerous showers
in the afternoon. 
.monday night...east winds around 5 knots, increasing to 5 to
10 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 122107
cwfsju
expires:202608130930;;077965

coastal waters forecast
national weather service san juan pr
507 pm 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. 


amz745-130930-
coastal waters of southwestern puerto rico out 10 nm-
507 pm ast wed aug 12 2026

.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
2 to 3 feet. wave detail: southeast 2 feet at 4 seconds and north
1 foot at 5 seconds. isolated thunderstorms this evening. scattered
showers until early morning. 
.thursday...southeast 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 5 seconds. 
.friday...east winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. seas 2 to 3 feet, building to 3 to
5 feet, occasionally to 6 feet in the afternoon. wave detail:
southeast 2 feet at 6 seconds, becoming southeast 3 feet at
6 seconds. 
.friday night...east winds 10 to 15 knots with gusts up to 25 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
and north 1 foot at 4 seconds. 
.saturday...northeast winds 10 to 15 knots, becoming east 15 to
20 knots in the afternoon. seas 2 to 3 feet. wave detail: southeast
2 feet at 6 seconds. scattered showers in the afternoon. 
.saturday night...northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet. 
.sunday...east winds 10 to 15 knots. seas 2 to 3 feet. numerous
showers in the afternoon. 
.sunday night...east winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. 
.monday...southeast winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. scattered showers. 
.monday night...east winds 10 to 15 knots. seas 2 to 3 feet. 

winds and seas higher in and near thunderstorms.

$$