Coastal Waters Forecast
Issued by NWS San Juan, PR

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833
FZCA52 TJSJ 040756
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
356 AM AST Fri Apr 4 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-042030-
356 AM AST Fri Apr 4 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A broad surface high pressure over the western Atlantic will continue
to promote fresh to locally strong east to east-northeast winds
through at least late tonight, then conditions will gradually
improve Saturday into Sunday. Rough seas will continue to build
between 6 and 9 feet, and occasionally higher, across most waters
resulting in hazardous seas through the weekend.

$$

AMZ711-042030-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots with gusts up to 30 knots. Seas
8 to 9 feet, occasionally to 11 feet. Wave Detail: East 9 feet at
9 seconds. Isolated showers this morning, then scattered showers
this afternoon.
.TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Seas
8 to 9 feet, occasionally to 11 feet. Wave Detail: East 9 feet at
9 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet
at 9 seconds and northeast 1 foot at 14 seconds.
.SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail:
East 7 feet at 9 seconds and northeast 1 foot at 14 seconds.
.SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
9 seconds and northeast 1 foot at 13 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 8 seconds and northeast 1 foot at 13 seconds.
.MONDAY...East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally
to 8 feet. Scattered showers.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet. Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas around 5 feet,
occasionally to 6 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers.

$$

AMZ712-042030-
Coastal Waters of Northern Puerto Rico out 10 NM-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots with gusts up to 30 knots. Seas
7 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet
at 9 seconds. Isolated showers until late afternoon, then scattered
showers late.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
7 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet
at 9 seconds. Numerous showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast
7 feet at 9 seconds. Scattered showers in the morning.
.SATURDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet.
Wave Detail: Northeast 6 feet at 9 seconds and northeast 1 foot at
14 seconds. Scattered showers in the evening.
.SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet
at 9 seconds and northeast 1 foot at 14 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet.
Wave Detail: Northeast 5 feet at 8 seconds and northeast 1 foot at
13 seconds.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas around 5 feet, occasionally to 6 feet. Scattered
showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

$$

AMZ716-042030-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots with gusts up to 30 knots. Seas
5 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at
8 seconds. Isolated showers early this afternoon. Scattered showers
late.
.TONIGHT...East winds 20 to 25 knots with gusts up to 30 knots. Seas
5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at
8 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet
at 8 seconds.
.SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 8 seconds.
.SUNDAY...East winds around 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
8 seconds and north 1 foot at 14 seconds.
.SUNDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 7 seconds and northeast 1 foot at 13 seconds.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally
to 6 feet.
.MONDAY NIGHT...East winds around 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.

$$

AMZ723-042030-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots with gusts up to 35 knots. Seas
7 to 9 feet, occasionally to 11 feet. Wave Detail: East 9 feet at
8 seconds. Scattered showers early this morning, then isolated
showers late this morning and afternoon.
.TONIGHT...East winds around 20 knots with gusts up to 30 knots.
Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail: East 7 feet
at 8 seconds. Scattered showers in the evening.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet
at 8 seconds. Scattered showers.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas around 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 6 feet at 8 seconds and northeast 1 foot at 14 seconds.
.SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
7 seconds and northeast 1 foot at 14 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 7 seconds and northeast 1 foot at 13 seconds.
.MONDAY...East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet. Scattered showers.
.TUESDAY...East winds around 15 knots. Seas around 5 feet,
occasionally to 6 feet. Numerous showers, mainly in the morning.
.TUESDAY NIGHT...East winds around 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet.

$$

AMZ726-042030-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots with gusts up to 30 knots. Seas
5 to 8 feet, occasionally to 10 feet. Wave Detail: East 7 feet at
8 seconds. Isolated showers early this morning. Isolated showers
early this afternoon, then scattered showers late.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at
8 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 7 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 8 seconds.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 8 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
8 seconds.
.SUNDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 4 feet at 7 seconds.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally
to 6 feet.
.MONDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ733-042030-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots with gusts up to 35 knots. Seas
7 to 9 feet, occasionally to 11 feet. Wave Detail: East 9 feet at
8 seconds. Scattered showers early this morning, then isolated
showers late this morning and afternoon.
.TONIGHT...East winds around 20 knots with gusts up to 30 knots.
Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet
at 8 seconds.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet
at 8 seconds.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 8 seconds.
.SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
8 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast
5 feet at 7 seconds.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally
to 8 feet.
.MONDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.TUESDAY...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.TUESDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Numerous showers.

$$

AMZ735-042030-
Coastal Waters of Southern Puerto Rico out 10 NM-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Northeast winds 15 to 20 knots, becoming east 20 to
25 knots late this morning and early afternoon, then diminishing to
15 to 20 knots late. Seas 5 to 7 feet, occasionally to 9 feet. Wave
Detail: East 7 feet at 8 seconds. Scattered showers early this
morning. Isolated showers late.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at
8 seconds. Scattered showers after midnight.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 8 seconds.
.SATURDAY NIGHT...East winds 15 to 20 knots, becoming northeast
10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: East 5 feet at 8 seconds.
.SUNDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Gusts up to 30 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: East 5 feet at 7 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 7 seconds.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally
to 6 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.

$$

AMZ741-042030-
Mona Passage Southward to 17N-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TODAY...East winds 20 to 25 knots, diminishing to 15 to 20 knots
this afternoon. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Northeast 8 feet at 8 seconds. Scattered showers, mainly
this morning.
.TONIGHT...East winds 20 to 25 knots with gusts up to 35 knots. Seas
6 to 8 feet, occasionally to 10 feet. Wave Detail: East 8 feet at
8 seconds.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet
at 8 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
East 7 feet at 8 seconds. Scattered showers in the evening.
.SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
8 seconds and northeast 1 foot at 11 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 7 seconds and northeast 1 foot at 13 seconds.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally
to 8 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.

$$

AMZ742-042030-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...East winds 15 to 20 knots, becoming northeast 20 to
25 knots late this morning, then diminishing to 15 to 20 knots early
this afternoon, increasing to 20 to 25 knots late. Seas 4 to 7 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds.
Isolated showers.
.TONIGHT...East winds 20 to 25 knots, diminishing to 15 to 20 knots
after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Northeast 6 feet at 7 seconds.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
5 feet at 8 seconds.
.SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 8 seconds and northeast 1 foot at 11 seconds.
.SUNDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 7 seconds and northeast 1 foot at
11 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: Northeast 4 feet at 7 seconds and northeast 1 foot at
13 seconds.
.MONDAY...East winds 10 to 15 knots, diminishing to around 5 knots
in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet.
Scattered showers.

$$

AMZ745-042030-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
356 AM AST Fri Apr 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM AST EARLY THIS MORNING...

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet
at 7 seconds. Isolated showers early this afternoon. Scattered
showers late.
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
after midnight. Gusts up to 25 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds.
.SATURDAY...East winds 5 to 10 knots, becoming southeast with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet, occasionally to
4 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers in
the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 3 feet at 7 seconds and
northwest 1 foot at 7 seconds.
.SUNDAY...East winds around 5 knots, becoming southeast with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet, occasionally to
4 feet. Wave Detail: Southeast 2 feet at 7 seconds. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 6 seconds and
north 1 foot at 7 seconds.
.MONDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

$$