150
FZCA52 TJSJ 070744
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
344 AM AST Sun Dec 7 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-072015-
344 AM AST Sun Dec 7 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Marine conditions will remain moderate through early in the week,
with moderate easterly trades maintaining choppy seas across the
offshore waters and local passages. By midweek, strengthening high
pressure north of the region will tighten the pressure gradient and
increase easterly winds, allowing seas to build across the Atlantic
waters and exposed passages. At the same time, a long-period
northerly swell arriving midweek will further worsen conditions.
Hazardous seas and moderate to fresh winds are expected Thursday
into Friday, with Small Craft Advisories likely. A gradual
improvement remains possible over the weekend as winds and swell
ease.

$$

AMZ711-072015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
344 AM AST Sun Dec 7 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north 2 feet
at 12 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north 3 feet
at 12 seconds. Scattered showers.
.MONDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 6 feet. Wave Detail: East 5 feet at 9 seconds and north
3 feet at 12 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 4 to 5 feet. Wave Detail: East 4 feet
at 9 seconds and north 2 feet at 9 seconds.
.TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas around 4 feet. Wave Detail: East 4 feet at
9 seconds and southeast 1 foot at 4 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 4 feet. Wave Detail: East 4 feet at 8 seconds
and northeast 2 feet at 15 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet.
.THURSDAY...East winds around 15 knots. Seas 6 to 7 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet.

$$

AMZ712-072015-
Coastal Waters of Northern Puerto Rico out 10 NM-
344 AM AST Sun Dec 7 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 9 seconds and north 2 feet
at 12 seconds. Scattered showers early this morning, then isolated
showers late this morning and afternoon.
.TONIGHT...East winds 10 to 15 knots, becoming southeast 5 to
10 knots after midnight. Gusts up to 25 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 9 seconds and north 3 feet at
12 seconds. Scattered showers.
.MONDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: East
4 feet at 9 seconds and north 3 feet at 12 seconds.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 4 feet. Wave
Detail: Northeast 4 feet at 9 seconds and north 2 feet at
13 seconds. Scattered showers after midnight.
.TUESDAY...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: East 3 feet at 9 seconds and north 1 foot at 9 seconds.
Scattered showers in the afternoon.
.TUESDAY NIGHT...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: East 3 feet at 9 seconds and north 1 foot at
9 seconds.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 5 to 6 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 6 to 7 feet.

$$

AMZ716-072015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
344 AM AST Sun Dec 7 2025

.TODAY...East winds around 15 knots with gusts up to 25 knots. Seas
3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet
at 9 seconds. Isolated showers until late afternoon, then scattered
showers late.
.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: East 3 feet at 5 seconds and north
2 feet at 8 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and north 3 feet
at 12 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds and east 3 feet at 9 seconds.
Scattered showers after midnight.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds and
southeast 2 feet at 4 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 2 feet at 5 seconds and east 2 feet at 8 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds around 15 knots. Seas 3 to 5 feet.
Scattered showers.
.THURSDAY...East winds around 15 knots. Seas 4 to 5 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet.

$$

AMZ723-072015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
344 AM AST Sun Dec 7 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 6 seconds and east 3 feet
at 9 seconds. Isolated showers until late afternoon, then scattered
showers late.
.TONIGHT...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.
.MONDAY...East winds 10 to 15 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.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds and
east 3 feet at 9 seconds. Scattered showers after midnight.
.TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: Southeast 4 feet at 5 seconds and east
3 feet at 8 seconds.
.TUESDAY NIGHT...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: East 4 feet at 7 seconds and north 1 foot at
13 seconds.
.WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet. Scattered showers in the
morning.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet.

$$

AMZ726-072015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
344 AM AST Sun Dec 7 2025

.TODAY...East winds around 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds and east
4 feet at 9 seconds. Scattered showers 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 25 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Numerous
showers, mainly in the evening.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds and east
3 feet at 9 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 7 seconds. Scattered showers after midnight.
.TUESDAY...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.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 7 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet.
Scattered showers.
.THURSDAY...East winds around 15 knots. Seas 4 to 5 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.

$$

AMZ733-072015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
344 AM AST Sun Dec 7 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet. Wave Detail: East 5 feet at 7 seconds and east 3 feet
at 9 seconds. Scattered showers early this morning, then isolated
showers late this morning and afternoon.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 5 feet. Wave Detail: East 5 feet at 7 seconds and east 3 feet
at 9 seconds. Scattered showers.
.MONDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet. Wave Detail: East 5 feet at
6 seconds and east 3 feet at 9 seconds.
.MONDAY NIGHT...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 after midnight.
.TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet. Wave Detail: East 4 feet at 6 seconds and east 2 feet
at 9 seconds. Scattered showers in the morning.
.TUESDAY NIGHT...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 east 2 feet at 9 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.

$$

AMZ735-072015-
Coastal Waters of Southern Puerto Rico out 10 NM-
344 AM AST Sun Dec 7 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered
showers this morning. Isolated showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered
showers.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 7 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.TUESDAY 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.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet.

$$

AMZ741-072015-
Mona Passage Southward to 17N-
344 AM AST Sun Dec 7 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
late. Seas 4 to 6 feet. Wave Detail: East 5 feet at 7 seconds and
north 1 foot at 9 seconds. Scattered showers, mainly this morning.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 6 feet. Wave Detail: East 5 feet at 7 seconds and north 2 feet
at 12 seconds. Scattered showers.
.MONDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet. Wave Detail: Southeast 5 feet at
7 seconds and north 2 feet at 11 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds and
northeast 2 feet at 8 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds and
northeast 2 feet at 9 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
7 seconds and northeast 2 feet at 9 seconds. Scattered showers in
the evening.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas around 6 feet.

$$

AMZ742-072015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
344 AM AST Sun Dec 7 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail:
Northeast 3 feet at 6 seconds and north 1 foot at 9 seconds.
Isolated showers early this afternoon. Numerous showers late.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail:
Northeast 2 feet at 7 seconds and north 2 feet at 12 seconds.
Scattered showers in the evening.
.MONDAY...East winds around 5 knots, becoming northeast in the
afternoon. Seas 2 to 4 feet. Wave Detail: East 2 feet at 6 seconds
and north 2 feet at 11 seconds.
.MONDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds and north 2 feet at 9 seconds.
.TUESDAY...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 9 seconds and north 2 feet at 12 seconds.
Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 1 foot
at 7 seconds and north 1 foot at 9 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered
showers in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 4 feet.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 5 feet. Scattered
showers in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet.

$$

AMZ745-072015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
344 AM AST Sun Dec 7 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots late this morning and early afternoon, then
diminishing to 5 to 10 knots with gusts up to 20 knots late. Seas
2 to 3 feet. Wave Detail: Southeast 2 feet at 7 seconds and
northwest 1 foot at 8 seconds. Isolated showers early this
afternoon. Scattered showers late.
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds and northwest 1 foot at 8 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and
northwest 1 foot at 9 seconds.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds and northwest 2 feet at
11 seconds.
.TUESDAY...East winds around 5 knots, becoming southeast with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 7 seconds and northwest 1 foot at 10 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds and northwest 1 foot at 10 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 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.
.THURSDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 4 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 5 feet.

$$