902
FZCA52 TJSJ 300906
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
506 AM AST Sat Aug 30 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-302215-
506 AM AST Sat Aug 30 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Moderate easterly winds will prevail over the next few days.
Conditions should remain favorable for small craft. However, strong
thunderstorms will continue to affect the coastal waters of western
Puerto Rico during the afternoon hours. A weak tropical wave will
enter the eastern Caribbean today, increasing the potential for
showers and thunderstorms.

$$

AMZ711-302215-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 5 to 10 knots. Seas around 3 feet. Wave Detail:
East 3 feet at 7 seconds and northeast 1 foot at 10 seconds.
Scattered showers with isolated thunderstorms 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
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, diminishing to 5 to 10 knots in
the afternoon. Seas around 3 feet. Wave Detail: East 3 feet at
7 seconds.
.SUNDAY 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.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 4 seconds and east 2 feet at 7 seconds.
.MONDAY 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 east
2 feet at 7 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-302215-
Coastal Waters of Northern Puerto Rico out 10 NM-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots this
afternoon. Seas around 3 feet. Wave Detail: Northeast 3 feet at
7 seconds and northeast 1 foot at 10 seconds. Numerous showers with
isolated thunderstorms 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
around 3 feet. Wave Detail: East 3 feet at 7 seconds and northeast
1 foot at 10 seconds.
.SUNDAY...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: Northeast 3 feet at 8 seconds.
.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 3 feet. Wave
Detail: East 2 feet at 5 seconds and northeast 2 feet at 8 seconds.
.MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 6 seconds.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 6 seconds.
.TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-302215-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 7 seconds and southeast 1 foot at 4 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 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. Wave Detail:
East 2 feet at 4 seconds and northeast 2 feet at 7 seconds.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds and northeast 2 feet at 8 seconds.
.MONDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds and northeast 1 foot at 7 seconds.
Scattered showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds and
northeast 1 foot at 7 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-302215-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail:
East 3 feet at 6 seconds and northeast 1 foot at 10 seconds.
Isolated 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 and northeast
1 foot at 10 seconds. Scattered showers after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 5 seconds and east 2 feet at 8 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. Scattered showers.
.MONDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered
showers in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ726-302215-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 10 to 15 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 with isolated
thunderstorms 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.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. Scattered showers.
.MONDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds and east 1 foot at 7 seconds.
Scattered showers in the morning.
.MONDAY NIGHT...East winds around 10 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-302215-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail:
East 3 feet at 6 seconds. Numerous showers with isolated
thunderstorms early this morning, then isolated showers late this
morning. Scattered showers this afternoon.
.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 after midnight.
.SUNDAY...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 morning.
.SUNDAY 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.
.MONDAY...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.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-302215-
Coastal Waters of Southern Puerto Rico out 10 NM-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
East 2 feet at 6 seconds. Numerous showers with isolated
thunderstorms early this morning, then isolated showers late this
morning and early afternoon. Scattered showers with isolated
thunderstorms late.
.TONIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 2 feet at 5 seconds.
.SUNDAY...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.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 2 feet. Wave Detail: East 2 feet at 5 seconds.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-302215-
Mona Passage Southward to 17N-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots late this morning, then diminishing to 5 to
10 knots this afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet
at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers.
.TONIGHT...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 10 seconds. Scattered showers in the evening.
.SUNDAY...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
northeast 1 foot at 10 seconds.
.SUNDAY 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 9 seconds.
.MONDAY...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 and east 1 foot
at 8 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ742-302215-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
506 AM AST Sat Aug 30 2025

.TODAY...East winds 5 to 10 knots, diminishing to around 5 knots
late this morning, then becoming north this afternoon. Seas 2 to
3 feet. Wave Detail: South 1 foot at 6 seconds and northeast 1 foot
at 10 seconds. Scattered showers this morning, then numerous showers
with isolated thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
after midnight. Seas 2 to 3 feet. Wave Detail: South 1 foot at
5 seconds and northeast 1 foot at 10 seconds. Scattered showers in
the evening.
.SUNDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: East 1 foot at 5 seconds
and northeast 1 foot at 9 seconds. Numerous showers in the
afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 1 foot at 5 seconds.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
East 1 foot at 5 seconds. Numerous showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 5 seconds.
.TUESDAY...East winds around 5 knots. Seas around 2 feet. Numerous
showers in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas around 2 feet.
.WEDNESDAY...East winds around 5 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-302215-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
506 AM AST Sat Aug 30 2025

.TODAY...Southeast winds 5 to 10 knots, becoming northeast late.
Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds.
Scattered showers late this morning and early afternoon. Scattered
showers with isolated thunderstorms late.
.TONIGHT...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds. Numerous showers in the
evening.
.SUNDAY...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 1 foot at 5 seconds. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds.
.MONDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. 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 10 to
15 knots in the afternoon. Seas around 2 feet. Scattered showers in
the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$