232
FZCA52 TJSJ 272028
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
428 PM AST Wed Aug 27 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-280930-
428 PM AST Wed Aug 27 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Lingering pulses of the northerly swell will result in some
hazardous localized marine conditions at least until late tonight.
From tomorrow, an increase in shower and isolated thunderstorm
activity could increase as due to an approaching weak tropical wave,
currently located east of the U.S. Virgin Islands.

$$

AMZ711-280930-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 7 seconds and north 3 feet
at 11 seconds. Scattered showers.
.THURSDAY...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.
.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 7 seconds and northeast 2 feet at 10 seconds. Scattered showers
after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas around 3 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 around 3 feet. Wave Detail: East 3 feet at 7 seconds and
northeast 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 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.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY NIGHT...East winds around 10 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.
Scattered showers.

$$

AMZ712-280930-
Coastal Waters of Northern Puerto Rico out 10 NM-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
becoming southeast 5 to 10 knots late this evening and overnight.
Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at 6 seconds and
north 3 feet at 11 seconds. Scattered showers, mainly this evening.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 6 seconds and north 3 feet at
11 seconds. Scattered showers in the afternoon.
.THURSDAY NIGHT...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 5 to 10 knots. 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.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.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. Scattered showers.
.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.

$$

AMZ716-280930-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
428 PM AST Wed Aug 27 2025

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds and northeast 3 feet at 11 seconds.
Scattered showers this evening, then isolated showers after
midnight. Scattered showers late.
.THURSDAY...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.
.THURSDAY 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
11 seconds. Scattered showers.
.FRIDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 7 seconds and northeast 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 2 feet at 7 seconds and
northeast 2 feet at 11 seconds.
.SATURDAY...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 in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY...East winds 10 to 15 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.
Scattered showers.

$$

AMZ723-280930-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail:
Southeast 3 feet at 6 seconds and northeast 2 feet at 12 seconds.
Isolated showers.
.THURSDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds and northeast 2 feet at
11 seconds. Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 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.
.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. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ726-280930-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
428 PM AST Wed Aug 27 2025

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Scattered showers, mainly
this evening.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Scattered showers.
.FRIDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 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. Scattered
showers in the evening.
.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. Seas 2 to 3 feet.
.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 around 10 knots. Seas around 2 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Scattered showers.

$$

AMZ733-280930-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Isolated
showers.
.THURSDAY...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.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at
6 seconds and northeast 1 foot at 10 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 6 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 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 6 seconds. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet.
.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.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ735-280930-
Coastal Waters of Southern Puerto Rico out 10 NM-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 6 seconds. Isolated showers this evening, then
scattered showers after midnight.
.THURSDAY...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.
Scattered showers in the morning.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet
at 5 seconds. Scattered showers.
.FRIDAY...East winds 5 to 10 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.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 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 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, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Scattered showers.
.MONDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 3 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ741-280930-
Mona Passage Southward to 17N-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and north 3 feet
at 12 seconds. Isolated showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet. Wave Detail: Southeast 4 feet at 5 seconds and
north 3 feet at 11 seconds. Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 4 feet. Wave Detail: East 4 feet at 6 seconds
and north 2 feet at 11 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. 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. 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 north
1 foot at 10 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet.
.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.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ742-280930-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds around 5 knots, increasing to 5 to 10 knots
after midnight. Seas 2 to 4 feet. Wave Detail: North 3 feet at
12 seconds and northeast 2 feet at 6 seconds. Scattered showers with
isolated thunderstorms early this evening.
.THURSDAY...East winds around 5 knots, increasing to 5 to 10 knots
with gusts up to 20 knots in the afternoon. Seas 2 to 4 feet. Wave
Detail: North 3 feet at 11 seconds and east 2 feet at 5 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 2 feet at
11 seconds.
.FRIDAY...East 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, diminishing to around 5 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 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 around 2 feet.
Scattered showers.
.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.
Scattered showers.
.MONDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas around 2 feet. Numerous showers in the
afternoon.
.MONDAY NIGHT...East winds around 5 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-280930-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
428 PM AST Wed Aug 27 2025

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds and northwest 2 feet at 12 seconds.
.THURSDAY...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.
.THURSDAY 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: Southeast 2 feet at 4 seconds and northwest
1 foot at 11 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds and north 1 foot at 10 seconds.
.FRIDAY NIGHT...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds and north 1 foot at 7 seconds.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. Scattered showers in the
afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Scattered showers.
.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.
Scattered showers.
.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.

$$