817
FZCA52 TJSJ 030800
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
400 AM AST Wed Dec 3 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-032015-
400 AM AST Wed Dec 3 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...

Winds will become gentle to moderate from the east to southeast as
the surface trough moves westward near the region. Afternoon
thunderstorms will form the next few days due to the proximity of the
trough. A small easterly swell will spread across the local waters
through Thursday, small craft operators should exercise caution
across the offshore Atlantic waters due to seas up to 6 feet.
Additionally, a surface high pressure across the Central Atlantic
will promote the return of the moderate to locally fresh east to
northeast winds the second part of the week.

$$

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

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 5 to 10 knots. Seas 5 to 6 feet. Wave Detail:
East 5 feet at 10 seconds and north 2 feet at 8 seconds. Isolated
showers early this morning, then scattered showers late this morning
and early afternoon. Isolated showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 10 seconds and north 2 feet
at 7 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 5 to 6 feet. Wave Detail: East 5 feet at 10 seconds and north
1 foot at 7 seconds. Scattered showers.
.THURSDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 10 seconds
and north 1 foot at 8 seconds. Scattered showers after midnight.
.FRIDAY...East winds around 15 knots with gusts up to 25 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 10 seconds and north 1 foot
at 8 seconds.
.FRIDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at 10 seconds
and north 1 foot at 7 seconds.
.SATURDAY...East winds around 15 knots. Seas 5 to 6 feet. Scattered
showers.
.SATURDAY NIGHT...East winds around 15 knots. Seas 5 to 6 feet.
.SUNDAY...East winds around 15 knots. Seas 5 to 6 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds around 15 knots. Seas 5 to 6 feet.
Scattered showers.

$$

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

.TODAY...East winds 5 to 10 knots. Seas around 5 feet. Wave Detail:
Northeast 5 feet at 10 seconds and north 2 feet at 8 seconds.
Isolated showers until late afternoon, then scattered showers late.
.TONIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet. Wave Detail:
Northeast 4 feet at 10 seconds and north 2 feet at 7 seconds.
Scattered showers after midnight.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at
10 seconds and north 1 foot at 7 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at
10 seconds and north 1 foot at 7 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: Northeast 4 feet at 9 seconds and north
1 foot at 8 seconds.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: East 4 feet at 10 seconds and north
1 foot at 8 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 5 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 5 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Scattered showers.

$$

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

.TODAY...East winds around 10 knots. Seas 3 to 5 feet. Wave Detail:
Northeast 3 feet at 10 seconds and east 2 feet at 3 seconds.
Scattered showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Northeast 3 feet at 10 seconds and east
2 feet at 4 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: Northeast 3 feet at 10 seconds and
east 2 feet at 5 seconds. Scattered showers.
.THURSDAY 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 northeast 3 feet at 9 seconds. Scattered showers.
.FRIDAY...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 and northeast
3 feet at 9 seconds. Scattered showers.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and
northeast 4 feet at 9 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Scattered
showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.SUNDAY...East winds around 15 knots. Seas 3 to 5 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
Scattered showers.

$$

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

.TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail:
Northeast 4 feet at 10 seconds and east 3 feet at 4 seconds.
Scattered showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and east
3 feet at 5 seconds. Scattered showers.
.THURSDAY...East winds around 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and east
4 feet at 9 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas around 5 feet. Wave Detail: East 5 feet at 6 seconds
and east 4 feet at 9 seconds. Scattered showers in the evening.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 5 feet. Wave Detail: East 5 feet at 6 seconds and east 4 feet
at 10 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 5 feet. Wave Detail: East 5 feet at 6 seconds and east
3 feet at 9 seconds.
.SATURDAY...East winds 15 to 20 knots. Seas around 5 feet.
.SATURDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet.
.SUNDAY...East winds around 15 knots. Seas 4 to 5 feet.
.SUNDAY NIGHT...East winds around 15 knots. Seas around 5 feet.

$$

AMZ726-032015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
400 AM AST Wed Dec 3 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 4 feet. Wave Detail: East 3 feet
at 10 seconds. Scattered 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 10 seconds and east 2 feet
at 3 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 10 seconds and east
2 feet at 5 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds
and east 4 feet at 9 seconds. Scattered showers in the evening.
.FRIDAY...East winds around 15 knots with gusts up to 25 knots. Seas
3 to 5 feet. Wave Detail: East 4 feet at 9 seconds and 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 5 feet. Wave Detail: East 4 feet at 9 seconds and east
3 feet at 6 seconds.
.SATURDAY...East winds around 15 knots. Seas 3 to 5 feet. Scattered
showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet.
.SUNDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.

$$

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

.TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail:
East 3 feet at 10 seconds. Scattered 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 4 seconds and east 3 feet
at 10 seconds. Scattered showers.
.THURSDAY...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 east
3 feet at 10 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds
and east 3 feet at 10 seconds. Scattered showers in the evening.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and east 3 feet
at 10 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 5 feet. Wave Detail: East 5 feet at 6 seconds and east
3 feet at 10 seconds.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.
Scattered showers.

$$

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

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Isolated showers this morning, then
scattered showers this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 4 seconds and east 1 foot at 9 seconds.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
5 seconds and east 1 foot at 10 seconds. Scattered showers in the
afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at
6 seconds and east 1 foot at 9 seconds. Scattered showers in the
evening.
.FRIDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 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 6 seconds. Scattered
showers.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.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.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ741-032015-
Mona Passage Southward to 17N-
400 AM AST Wed Dec 3 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail:
East 3 feet at 7 seconds. Isolated showers.
.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots after midnight. Seas 2 to 4 feet. Wave
Detail: East 3 feet at 5 seconds and east 3 feet at 9 seconds.
Scattered showers after midnight.
.THURSDAY...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
northeast 2 feet at 10 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 5 feet. Wave Detail: East 4 feet
at 6 seconds and east 2 feet at 10 seconds. Scattered showers after
midnight.
.FRIDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 3 to 5 feet. Wave Detail: East 4 feet at
6 seconds and east 2 feet at 10 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet. Wave Detail: East 5 feet at 6 seconds and east
2 feet at 9 seconds.
.SATURDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 3 to 5 feet. Scattered showers in the
afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet.
.SUNDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 3 to 5 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 5 feet.

$$

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

.TODAY...East winds 5 to 10 knots, diminishing to around 5 knots
late this morning, then becoming north this afternoon. Seas 2 to
4 feet. Wave Detail: Northeast 2 feet at 8 seconds and north 2 feet
at 8 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 4 feet. Wave Detail:
North 2 feet at 7 seconds and northeast 2 feet at 9 seconds.
.THURSDAY...Northeast winds 5 to 10 knots, becoming east 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 2 to
4 feet. Wave Detail: Northeast 3 feet at 10 seconds. Scattered
showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 2 feet at
4 seconds and north 1 foot at 7 seconds.
.FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 4 feet. Wave Detail: Northeast 2 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 2 to 4 feet. Wave Detail: Northeast 2 feet at 5 seconds and
north 1 foot at 8 seconds.
.SATURDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Scattered showers in the
afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet.
.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 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

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

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
North 2 feet at 8 seconds and southeast 1 foot at 4 seconds.
Numerous showers with isolated thunderstorms this afternoon.
.TONIGHT...Northeast winds around 5 knots. Seas around 2 feet. Wave
Detail: North 1 foot at 8 seconds.
.THURSDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot at
4 seconds and north 1 foot at 7 seconds. Scattered showers in the
afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 7 seconds and north 1 foot at 7 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 6 seconds and north 1 foot at 7 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds and north 1 foot at 7 seconds.
.SATURDAY...East winds around 5 knots. Seas around 2 feet. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
.SUNDAY...East winds around 5 knots. Seas around 2 feet.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$