fzca52 tjsj 152041
cwfsju
expires:202608160930;;251736

coastal waters forecast
national weather service san juan pr
441 pm ast sat aug 15 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. 


amz712-160930-
coastal waters of northern puerto rico out 10 nm-
441 pm ast sat aug 15 2026

...small craft advisory in effect through sunday morning...

.tonight...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. scattered showers
with isolated thunderstorms. 
.sunday...east winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. seas 5 to 6 feet, occasionally to 8 feet. wave
detail: east 6 feet at 8 seconds and northeast 1 foot at 11 seconds.
scattered showers. 
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. gusts up to 30 knots. seas 4 to 6 feet,
occasionally to 8 feet. wave detail: east 6 feet at 8 seconds and
northeast 1 foot at 11 seconds. 
.monday...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 4 to 5 feet, occasionally to 6 feet. wave detail:
east 5 feet at 8 seconds and northeast 1 foot at 10 seconds. 
.monday 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 3 to 5 feet, occasionally to 6 feet. wave detail:
east 5 feet at 8 seconds and northeast 1 foot at 10 seconds. 
.tuesday...east winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave
detail: east 4 feet at 8 seconds and northeast 1 foot at 10 seconds.
.tuesday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 4 feet, occasionally to 5 feet. 
.wednesday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. scattered showers in the afternoon. 
.wednesday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet. 
.thursday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. scattered showers. 
.thursday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 152041
cwfsju
expires:202608160930;;251741

coastal waters forecast
national weather service san juan pr
441 pm ast sat aug 15 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. 


amz735-160930-
coastal waters of southern puerto rico out 10 nm-
441 pm ast sat aug 15 2026

...small craft advisory in effect through sunday evening...

.tonight...east winds 15 to 20 knots with gusts up to 30 knots. seas
5 to 7 feet, occasionally to 9 feet. wave detail: east 7 feet at
8 seconds. isolated thunderstorms. 
.sunday...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
8 seconds. scattered showers in the morning. 
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. gusts up to 30 knots. seas 4 to 7 feet, 
occasionally to 8 feet. wave detail: east 6 feet at 8 seconds. 
.monday...east winds 10 to 15 knots with gusts up to 25 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet at
7 seconds. 
.monday night...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. 
.tuesday...east winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave
detail: east 4 feet at 7 seconds. 
.tuesday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 4 feet, occasionally to 5 feet. 
.wednesday...east winds 10 to 15 knots. seas 2 to 3 feet. 
.wednesday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 2 to 3 feet. 
.thursday...east winds 10 to 15 knots. seas 2 to 3 feet. 
.thursday night...east winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 152041
cwfsju
expires:202608160930;;251742

coastal waters forecast
national weather service san juan pr
441 pm ast sat aug 15 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. 


amz741-160930-
mona passage southward to 17n-
441 pm ast sat aug 15 2026

...small craft advisory in effect through sunday evening...

.tonight...east winds 20 to 25 knots, diminishing to 15 to 20 knots
late. gusts up to 35 knots. seas 7 to 9 feet, occasionally to
11 feet. wave detail: east 9 feet at 8 seconds. showers and
scattered thunderstorms this evening, then isolated showers and
thunderstorms after midnight. 
.sunday...east winds 15 to 20 knots with gusts up to 30 knots. seas
6 to 8 feet, occasionally to 10 feet. wave detail: east 8 feet at
9 seconds and northeast 1 foot at 11 seconds. numerous showers. 
.sunday night...east winds 15 to 20 knots with gusts up to 30 knots.
seas 5 to 7 feet, occasionally to 9 feet. wave detail: east 7 feet
at 8 seconds and northeast 1 foot at 11 seconds. scattered showers. 
.monday...east winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. seas 4 to 6 feet, occasionally to 8 feet. wave
detail: east 6 feet at 8 seconds and northeast 1 foot at 10 seconds.
.monday night...east winds 10 to 15 knots with gusts up to 25 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 7 seconds and northeast 1 foot at 10 seconds. 
.tuesday...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet at
7 seconds and northeast 1 foot at 10 seconds. 
.tuesday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 4 feet, occasionally to 5 feet. 
.wednesday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. 
.wednesday night...east winds 10 to 15 knots. seas around 3 feet.
scattered showers. 
.thursday...east winds 10 to 15 knots. seas around 3 feet. scattered
showers in the afternoon. 
.thursday night...east winds 15 to 20 knots. seas 3 to 4 feet,
occasionally to 5 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 152041
cwfsju
expires:202608160930;;251743

coastal waters forecast
national weather service san juan pr
441 pm ast sat aug 15 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. 


amz742-160930-
coastal waters of northwestern puerto rico out 10 nm-
441 pm ast sat aug 15 2026

...small craft advisory in effect until midnight ast tonight...

.tonight...northeast winds 20 to 25 knots with gusts up to 35 knots,
becoming east 15 to 20 knots with gusts up to 30 knots after
midnight. seas 4 to 6 feet, occasionally to 8 feet. wave detail:
northeast 5 feet at 6 seconds and northeast 1 foot at 12 seconds.
scattered showers with isolated thunderstorms this evening, then
isolated showers after midnight. 
.sunday...east winds 15 to 20 knots, becoming northeast 10 to
15 knots in the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
wave detail: northeast 4 feet at 7 seconds and south 1 foot at
5 seconds. numerous showers in the afternoon. 
.sunday night...east winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: northeast
4 feet at 6 seconds and south 1 foot at 5 seconds. scattered showers
in the evening. 
.monday...east winds 5 to 10 knots, becoming northeast 10 to
15 knots with gusts up to 20 knots in the afternoon. seas 2 to
4 feet, occasionally to 5 feet. wave detail: northeast 3 feet at
6 seconds and south 1 foot at 6 seconds. numerous showers in the
afternoon. 
.monday night...east winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northeast 3 feet at 6 seconds
and south 1 foot at 6 seconds. 
.tuesday...northeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 6 seconds and south 1 foot at 5 seconds.
scattered showers in the afternoon. 
.tuesday night...northeast winds 10 to 15 knots, becoming east 5 to
10 knots after midnight. seas 2 to 3 feet. 
.wednesday...northeast winds 5 to 10 knots. seas 2 to 3 feet.
numerous showers in the afternoon. 
.wednesday night...east winds 5 to 10 knots. seas 2 to 3 feet. 
.thursday...east winds 5 to 10 knots. seas around 2 feet. scattered
showers in the afternoon. 
.thursday night...east winds 5 to 10 knots. seas 2 to 3 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 152041
cwfsju
expires:202608160930;;251744

coastal waters forecast
national weather service san juan pr
441 pm ast sat aug 15 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. 


amz745-160930-
coastal waters of southwestern puerto rico out 10 nm-
441 pm ast sat aug 15 2026

...small craft should exercise caution...

.tonight...east winds 15 to 20 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots. seas 2 to 4 feet, occasionally to
5 feet. wave detail: northeast 4 feet at 5 seconds and west 1 foot
at 4 seconds. scattered showers with isolated thunderstorms this
evening. 
.sunday...east winds 5 to 10 knots, increasing to 15 to 20 knots
with gusts up to 30 knots in the afternoon. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: southeast 3 feet at 4 seconds.
scattered showers in the afternoon. 
.sunday night...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: east 3 feet at 6 seconds and
west 2 feet at 5 seconds. 
.monday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
east 2 feet at 6 seconds and west 1 foot at 5 seconds. scattered
showers in the afternoon. 
.monday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: southeast 2 feet at 3 seconds and west 1 foot at 5 seconds. 
.tuesday...east winds around 5 knots, becoming southeast in the
afternoon. seas around 2 feet. wave detail: west 1 foot at
5 seconds. scattered showers in the afternoon. 
.tuesday night...east winds 5 to 10 knots. seas around 2 feet. 
.wednesday...east winds 5 to 10 knots, becoming southeast in the
afternoon. seas around 2 feet. scattered showers in the afternoon. 
.wednesday night...east winds 5 to 10 knots. seas around 2 feet. 
.thursday...southeast winds 10 to 15 knots. seas around 2 feet.
scattered showers in the afternoon. 
.thursday night...east winds 10 to 15 knots. seas around 2 feet. 

winds and seas higher in and near thunderstorms.

$$