934
FZCA52 TJSJ 031856
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
256 PM AST Wed Sep 3 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-040715-
256 PM AST Wed Sep 3 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface high pressure over the central Atlantic and a surface
trough will continue to result in moderate to locally fresh east to
southeasterly winds across the local waters, producing moderate chops
to localized choppy seas. Seas will remain up to 5 feet across the
Atlantic offshore waters and even lower across the coastal waters.
For the upcoming weekend, the arrival of a tropical wave is expected
to increase the frequency of showers and thunderstorms, potentially
resulting in localized hazardous marine conditions.

$$

AMZ711-040715-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 7 seconds and north 1 foot
at 10 seconds. Isolated showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds and north
1 foot at 9 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at
7 seconds and north 1 foot at 10 seconds.
.FRIDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 8 seconds and north 1 foot
at 9 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas around 4 feet. Wave Detail: Northeast 4 feet at
8 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: Northeast 4 feet at 8 seconds.
Scattered showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas around 4 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet.
.MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet. Scattered showers.

$$

AMZ712-040715-
Coastal Waters of Northern Puerto Rico out 10 NM-
256 PM AST Wed Sep 3 2025

.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots late this evening and overnight. Seas
2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and north 1 foot
at 11 seconds. Isolated showers this evening. Scattered showers
after midnight, then isolated showers late.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds and north
1 foot at 9 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to
4 feet. Wave Detail: East 3 feet at 8 seconds and north 1 foot at
10 seconds.
.FRIDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at
7 seconds and north 1 foot at 9 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: North 2 feet at 8 seconds. Scattered
showers in the evening.
.SATURDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 2 feet at
8 seconds. Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to
4 feet.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 3 feet.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Showers and
scattered thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-040715-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 7 seconds. Isolated showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 7 seconds and
north 1 foot at 9 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
8 seconds and north 1 foot at 9 seconds. Scattered showers after
midnight.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: North 1 foot at 8 seconds. Scattered
showers.
.FRIDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: North 1 foot at 8 seconds.
Scattered showers.
.SATURDAY...East winds around 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 8 seconds.
Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.
.MONDAY...East winds around 15 knots. Seas 3 to 4 feet. Scattered
showers.
.MONDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

AMZ723-040715-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds. Isolated
showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Northeast 2 feet at 8 seconds and
north 1 foot at 10 seconds. Scattered showers in the morning.
.THURSDAY NIGHT...East winds around 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 2 feet at 8 seconds
and north 1 foot at 10 seconds. Scattered showers.
.FRIDAY...East winds around 15 knots with gusts up to 20 knots. Seas
around 4 feet. Wave Detail: Northeast 3 feet at 9 seconds and north
1 foot at 10 seconds. Scattered showers.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: Northeast 3 feet at 8 seconds.
Scattered showers after midnight.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet. Wave Detail: Northeast 3 feet at 7 seconds.
Scattered showers in the morning.
.SATURDAY NIGHT...East winds around 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Scattered showers.
.SUNDAY...East winds around 15 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.MONDAY...East winds around 15 knots. Seas 4 to 5 feet. Scattered
showers.
.MONDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet.
Scattered showers.

$$

AMZ726-040715-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 7 seconds. Scattered showers with isolated
thunderstorms early this evening, then isolated showers late this
evening and overnight.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Scattered showers.
.FRIDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Numerous showers, mainly in the evening.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds.
Numerous showers, mainly in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-040715-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: Northeast 2 feet at 7 seconds. Isolated
showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Northeast 2 feet at 7 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: Northeast 2 feet at
7 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Northeast 2 feet at 7 seconds. Scattered
showers.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: Northeast 1 foot at 7 seconds.
Scattered showers.
.SATURDAY...East winds around 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: Northeast 2 feet at 6 seconds.
Scattered showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 4 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

AMZ735-040715-
Coastal Waters of Southern Puerto Rico out 10 NM-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
late. Seas 2 to 3 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet. Scattered showers after midnight.
.SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Scattered showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ741-040715-
Mona Passage Southward to 17N-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Isolated thunderstorms this evening. Scattered showers
until early morning. Isolated showers late.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Northeast 1 foot at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 1 foot at
7 seconds.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Northeast 1 foot at 6 seconds and north
1 foot at 9 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: North 1 foot at 8 seconds.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: North 1 foot at 8 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Numerous showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.MONDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered
showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-040715-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds around 5 knots, increasing to 5 to 10 knots
late. Seas around 2 feet. Wave Detail: Northeast 1 foot at
7 seconds.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 1 foot at 7 seconds. Scattered showers in the
afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: North 1 foot at 7 seconds.
.FRIDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas 2 to 3 feet. Wave Detail: North 1 foot at
9 seconds. Numerous showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 1 foot at 7 seconds.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 6 seconds. Numerous showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.SUNDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas 2 to 3 feet. Showers and scattered thunderstorms
in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas around 2 feet. Showers and scattered
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-040715-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
256 PM AST Wed Sep 3 2025

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Isolated
showers until early morning.
.THURSDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas around
2 feet.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 1 foot at 9 seconds.
.FRIDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas around
2 feet. Wave Detail: North 1 foot at 9 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 2 feet. Wave Detail: North 1 foot at 8 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: North 1 foot at 7 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to
3 feet.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Numerous showers in
the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.

$$