381
FZCA52 TJSJ 030758
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
358 AM AST Wed Sep 3 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-032015-
358 AM 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.

$$

AMZ711-032015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
358 AM AST Wed Sep 3 2025

.TODAY...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 southeast
1 foot at 4 seconds. Scattered showers early this morning, then
isolated showers late this morning and afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 7 seconds and southeast
1 foot at 4 seconds.
.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
southeast 1 foot at 4 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds
and northeast 3 feet at 7 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 5 seconds and east 3 feet
at 8 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: East 4 feet at 5 seconds
and northeast 4 feet at 8 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas around 4 feet. Scattered
showers in the morning.
.SATURDAY NIGHT...East winds around 15 knots. Seas around 4 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas around 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
Scattered showers.

$$

AMZ712-032015-
Coastal Waters of Northern Puerto Rico out 10 NM-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots this afternoon. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 7 seconds and northeast 1 foot at 11 seconds.
Scattered showers early this morning, then isolated showers late
this morning. Scattered showers with isolated thunderstorms this
afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. Seas around 3 feet.
Wave Detail: East 3 feet at 7 seconds and north 1 foot at
11 seconds. Scattered showers after midnight.
.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, 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
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: East 3 feet at 5 seconds and 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. Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 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, becoming southeast 5 to
10 knots after midnight. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-032015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and
northeast 2 feet at 7 seconds. Scattered showers early this morning,
then isolated showers late this morning and afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and southeast
2 feet at 4 seconds.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and
northeast 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: Northeast 3 feet at
8 seconds and east 2 feet at 4 seconds. Scattered showers after
midnight.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and north
1 foot at 9 seconds. Scattered showers.
.FRIDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds
and north 1 foot at 8 seconds. Scattered showers.
.SATURDAY...East winds around 15 knots. Seas 3 to 4 feet. Scattered
showers.
.SATURDAY NIGHT...East winds around 15 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.

$$

AMZ723-032015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds. Isolated
thunderstorms early this morning. Scattered showers this morning,
then isolated showers this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds and
northeast 2 feet at 8 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: Southeast 3 feet at
5 seconds and east 2 feet at 8 seconds. Scattered showers.
.FRIDAY...East winds around 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and northeast
3 feet at 9 seconds. Scattered showers.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: East 4 feet at 5 seconds and
northeast 3 feet at 8 seconds. Scattered showers after midnight.
.SATURDAY...East winds around 15 knots. Seas around 4 feet.
Scattered showers in the morning.
.SATURDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-032015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 2 feet at 6 seconds. Scattered
showers with isolated thunderstorms early this morning, then
isolated showers late this morning and early afternoon. Scattered
showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 2 feet at 6 seconds. Scattered
showers in the evening.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered
showers.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds. Numerous
showers, mainly in the evening.
.SATURDAY...East winds around 15 knots. Seas 3 to 4 feet. Numerous
showers, mainly in the morning.
.SATURDAY NIGHT...East winds 10 to 15 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.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-032015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Isolated
thunderstorms this morning. Scattered showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY NIGHT...East winds around 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
Scattered showers.
.FRIDAY...East winds around 15 knots with gusts up to 25 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds. Scattered
showers.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: East 4 feet at 6 seconds. Scattered
showers.
.SATURDAY...East winds around 15 knots. Seas around 4 feet.
Scattered showers in the morning.
.SATURDAY NIGHT...East winds around 15 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 around 3 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-032015-
Coastal Waters of Southern Puerto Rico out 10 NM-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots late this morning and afternoon. Seas 2 to
3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated showers
early this morning, then scattered showers late this morning and
afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
5 seconds.
.FRIDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered
showers after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 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.

$$

AMZ741-032015-
Mona Passage Southward to 17N-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Scattered
showers early this morning. Isolated showers late this morning and
early afternoon, then scattered showers with isolated thunderstorms
late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Scattered
showers in the evening.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds.
Scattered showers after midnight.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and north 1 foot
at 9 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet
at 7 seconds and north 1 foot at 9 seconds.
.SATURDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet.
.SATURDAY NIGHT...East winds 10 to 15 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.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-032015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
358 AM AST Wed Sep 3 2025

.TODAY...East winds around 5 knots. Seas around 2 feet. Wave Detail:
South 1 foot at 4 seconds and northeast 1 foot at 7 seconds.
Isolated showers late this morning. Numerous showers with isolated
thunderstorms this afternoon.
.TONIGHT...East winds around 5 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds and northeast 1 foot at 7 seconds.
.THURSDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: South 1 foot at
6 seconds and 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: Southeast 2 feet at 5 seconds and north 1 foot at 7 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
South 1 foot at 6 seconds and 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: Southeast 2 feet at 6 seconds and northeast 1 foot at
7 seconds.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. 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. Seas 2 to 3 feet. Showers and
scattered thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-032015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
358 AM AST Wed Sep 3 2025

.TODAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots
with gusts up to 20 knots this afternoon. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.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. Wave Detail: Southeast 2 feet at 5 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at
5 seconds and 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: Southeast 2 feet at 5 seconds and north 1 foot
at 9 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet. Wave Detail: Southeast
2 feet at 5 seconds and north 1 foot at 8 seconds.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet.
.SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Scattered showers in
the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

$$