360
FZCA52 TJSJ 110711
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
311 AM AST Thu Sep 11 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-112015-
311 AM AST Thu Sep 11 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface high pressure across the central Atlantic and a front over
the western Atlantic will promote light to moderate east to southeast
winds through the end of the week. Moderate concentrations of Saharan
dust particles will be present in the area through today, slightly
decreasing visibilities.

$$

AMZ711-112015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
311 AM AST Thu Sep 11 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 4 feet. Wave Detail: East 4 feet at 8 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 8 seconds and northwest
1 foot at 9 seconds.
.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
8 seconds and northwest 1 foot at 9 seconds. Scattered showers in
the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds and
northwest 1 foot at 8 seconds. Scattered showers.
.SATURDAY...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 8 seconds and north 1 foot at 8 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at
4 seconds and east 3 feet at 9 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
.MONDAY...East winds 10 to 15 knots. Seas around 4 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Scattered showers.

$$

AMZ712-112015-
Coastal Waters of Northern Puerto Rico out 10 NM-
311 AM AST Thu Sep 11 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 8 seconds. Isolated showers early this morning.
Scattered showers late this morning, then isolated showers this
afternoon.
.TONIGHT...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: Northeast 3 feet at 8 seconds and northwest 1 foot at
9 seconds.
.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: Northeast 3 feet at 8 seconds and northwest 1 foot at
9 seconds. Scattered showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 8 seconds and northwest 1 foot at
9 seconds. Scattered showers.
.SATURDAY...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 8 seconds and northwest 1 foot at 8 seconds.
Scattered showers.
.SATURDAY NIGHT...Southeast 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: Northeast 3 feet at 8 seconds and east 2 feet
at 4 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers.
.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.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
Scattered showers.

$$

AMZ716-112015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
311 AM AST Thu Sep 11 2025

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 8 seconds and southeast 1 foot at 4 seconds.
Scattered showers, mainly this morning.
.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 8 seconds. Scattered showers after midnight.
.FRIDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 8 seconds and northwest 1 foot at 9 seconds.
Scattered showers in the morning.
.FRIDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds and northwest 1 foot at 9 seconds.
Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 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. Wave Detail: East 2 feet at 4 seconds
and northeast 2 feet at 10 seconds. Scattered showers.
.SUNDAY...East winds around 15 knots. Seas 3 to 4 feet.
.SUNDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
.MONDAY...East winds around 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

AMZ723-112015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
311 AM AST Thu Sep 11 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 5 seconds and east 3 feet
at 8 seconds.
.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 and
northeast 3 feet at 8 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: East 3 feet at 6 seconds and northeast 1 foot at 12 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: Southeast 2 feet at 5 seconds and
east 2 feet at 8 seconds.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 2 feet at 4 seconds and
northeast 2 feet at 9 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 4 seconds
and northeast 2 feet at 10 seconds. Scattered showers.
.SUNDAY...East winds 15 to 20 knots. Seas around 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
.MONDAY...East winds around 15 knots. Seas 3 to 4 feet. Scattered
showers.
.MONDAY NIGHT...East winds around 15 knots. Seas around 4 feet.
Scattered showers.

$$

AMZ726-112015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
311 AM AST Thu Sep 11 2025

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail:
East 3 feet at 8 seconds and southeast 2 feet at 5 seconds.
Scattered showers, mainly this morning.
.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds and southeast 2 feet at 5 seconds.
Scattered showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 8 seconds and southeast 1 foot at 5 seconds.
.FRIDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds. Scattered showers after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East 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 east 2 feet at 8 seconds. Scattered showers.
.SUNDAY...East winds 15 to 20 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 3 to 4 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

AMZ733-112015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
311 AM AST Thu Sep 11 2025

.TODAY...East winds 10 to 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. Isolated showers.
.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. 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 7 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and
east 2 feet at 8 seconds. Scattered showers after midnight.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and
east 2 feet at 8 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 east 2 feet at 8 seconds. Scattered showers.
.SUNDAY...East winds around 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds around 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 around 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

AMZ735-112015-
Coastal Waters of Southern Puerto Rico out 10 NM-
311 AM AST Thu Sep 11 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 and east
1 foot at 8 seconds. Isolated showers early this morning. Scattered
showers late this morning, then isolated showers this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 7 seconds.
.FRIDAY...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.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Scattered showers after
midnight.
.SATURDAY...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: Southeast 2 feet at 5 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: Southeast 2 feet at
5 seconds. Scattered showers.
.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.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots, becoming northeast 5 to
10 knots after midnight. Seas 2 to 3 feet. Scattered showers.

$$

AMZ741-112015-
Mona Passage Southward to 17N-
311 AM AST Thu Sep 11 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and
northeast 2 feet at 8 seconds. Isolated showers late.
.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. Scattered
showers in the evening.
.FRIDAY...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 north 1 foot
at 9 seconds.
.FRIDAY 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 north
1 foot at 9 seconds.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas around 3 feet. Wave Detail: East 3 feet at
7 seconds and north 1 foot at 8 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 6 seconds
and north 1 foot at 7 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

AMZ742-112015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
311 AM AST Thu Sep 11 2025

.TODAY...East winds around 5 knots, becoming northeast late. Seas
2 to 3 feet. Wave Detail: Northeast 2 feet at 8 seconds and south
1 foot at 5 seconds. Scattered showers with isolated thunderstorms
early this afternoon. Numerous showers with isolated thunderstorms
late.
.TONIGHT...East 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.
Numerous showers in the evening.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
South 1 foot at 6 seconds and northwest 1 foot at 9 seconds.
Numerous showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and north 1 foot at 9 seconds.
Scattered showers in the evening.
.SATURDAY...East winds around 5 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds and north 1 foot at 8 seconds.
Numerous showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds and north 1 foot at 7 seconds.
.SUNDAY...East winds around 5 knots. Seas around 2 feet. Numerous
showers in the afternoon.
.SUNDAY NIGHT...Northeast winds around 5 knots, becoming east after
midnight. Seas around 2 feet. Scattered showers.
.MONDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Numerous
showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-112015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
311 AM AST Thu Sep 11 2025

.TODAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots
with gusts up to 20 knots late this morning and afternoon. Seas
around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Isolated
showers early this afternoon. Isolated showers and thunderstorms
late.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at
8 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 6 seconds and northwest
1 foot at 9 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at
10 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at
8 seconds. Scattered showers in the afternoon.
.SATURDAY 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 4 seconds and northwest 1 foot at 8 seconds.
.SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Scattered showers in
the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 2 feet.
.MONDAY...East winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Seas around 2 feet. Scattered showers in
the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots, diminishing to around
5 knots after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$