631
FZCA52 TJSJ 280737
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
337 AM AST Thu Aug 28 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-282015-
337 AM AST Thu Aug 28 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
From today through Friday, the shower and isolated thunderstorm
activity could increase due to an approaching weak tropical wave near
the U.S. Virgin Islands.

$$

AMZ711-282015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet. Wave Detail: East 3 feet at 7 seconds and
northeast 2 feet at 11 seconds. Scattered showers, mainly this
morning.
.TONIGHT...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 and northeast
2 feet at 10 seconds. Scattered showers after midnight.
.FRIDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at
7 seconds and northeast 2 feet at 11 seconds.
.FRIDAY 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 and
northeast 1 foot at 10 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and
northeast 1 foot at 10 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds
and northeast 1 foot at 10 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.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.

$$

AMZ712-282015-
Coastal Waters of Northern Puerto Rico out 10 NM-
337 AM AST Thu Aug 28 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots this afternoon. Seas 3 to 4 feet. Wave Detail:
Northeast 3 feet at 6 seconds and north 3 feet at 11 seconds.
Scattered showers. Isolated thunderstorms this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 7 seconds and northeast 2 feet at
11 seconds. Scattered showers after midnight.
.FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas around 3 feet. Wave
Detail: East 3 feet at 7 seconds and northeast 2 feet at 10 seconds.
Scattered showers in the morning.
.FRIDAY NIGHT...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 northeast 2 feet at
11 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds and
northeast 1 foot at 10 seconds. Scattered showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 3 feet. Wave Detail: Northeast
3 feet at 6 seconds and northeast 1 foot at 10 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet.
.MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-282015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds around 10 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at
11 seconds. Scattered showers early this morning, then isolated
showers late this morning and afternoon.
.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds and northeast 2 feet at
11 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 6 seconds and north 2 feet at 10 seconds.
.FRIDAY 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 and
northeast 1 foot at 11 seconds.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds and northeast 1 foot at 10 seconds.
Scattered showers in the morning.
.SATURDAY NIGHT...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
and northeast 1 foot at 10 seconds. Scattered showers after
midnight.
.SUNDAY...East winds around 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
.MONDAY...East winds around 10 knots. Seas around 2 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.

$$

AMZ723-282015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at
11 seconds. Scattered showers early this morning, then isolated
showers late this morning. Scattered showers this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: East 3 feet at 6 seconds and northeast 2 feet at 11 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: East 3 feet at 6 seconds and northeast 2 feet at 11 seconds.
Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds and
northeast 1 foot at 11 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds and
northeast 1 foot at 10 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at
6 seconds and northeast 1 foot at 10 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY NIGHT...East winds around 10 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 around 3 feet.

$$

AMZ726-282015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Scattered showers early this
morning, then isolated showers late this morning and afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds. Scattered showers in the morning.
.FRIDAY 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.
.SATURDAY...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 in the morning.
.SATURDAY NIGHT...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 after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas around 2 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.

$$

AMZ733-282015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds and
northeast 1 foot at 11 seconds. Scattered showers. Isolated
thunderstorms this 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 6 seconds and
northeast 1 foot at 10 seconds. Scattered showers.
.FRIDAY...East winds around 10 knots. Seas around 3 feet. Wave
Detail: East 3 feet at 6 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.SATURDAY...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 in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.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.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-282015-
Coastal Waters of Southern Puerto Rico out 10 NM-
337 AM AST Thu Aug 28 2025

.TODAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots
late this morning and afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 6 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 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds. Scattered showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.

$$

AMZ741-282015-
Mona Passage Southward to 17N-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and
north 3 feet at 11 seconds. Isolated showers this morning, then
scattered showers with isolated thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet
at 11 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 6 seconds and north 2 feet at
10 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas around 3 feet. Wave Detail: East
3 feet at 6 seconds and north 2 feet at 10 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds and
northeast 1 foot at 10 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds
and northeast 1 foot at 10 seconds. Scattered showers after
midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.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.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-282015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
337 AM AST Thu Aug 28 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots early this afternoon, then diminishing to 5 to
10 knots with gusts up to 20 knots late. Seas 2 to 4 feet. Wave
Detail: North 3 feet at 11 seconds and east 2 feet at 5 seconds.
Isolated showers early this morning. Isolated showers early this
afternoon, then scattered showers with isolated thunderstorms late.
.TONIGHT...East winds 5 to 10 knots, diminishing to around 5 knots
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
5 seconds and north 2 feet at 11 seconds.
.FRIDAY...Northeast winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northeast 2 feet at
10 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 2 feet at
10 seconds.
.SATURDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds
and northeast 1 foot at 10 seconds. Numerous showers in the
afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds and northeast 1 foot at 10 seconds.
Scattered showers in the evening.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...East winds around 5 knots. Seas around 2 feet. Numerous
showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-282015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
337 AM AST Thu Aug 28 2025

.TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and
northwest 1 foot at 11 seconds. Isolated showers early this morning.
Isolated showers late.
.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and northwest 1 foot at 11 seconds.
.FRIDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
5 seconds and north 1 foot at 10 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.SATURDAY...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 6 seconds. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. Scattered showers in the
evening.
.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.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

$$