Coastal Waters Forecast
Issued by NWS San Juan, PR

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014
FZCA52 TJSJ 280804 CCA
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
401 AM AST Fri Mar 28 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-282030-
401 AM AST Fri Mar 28 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A robust surface high pressure system over the Central Atlantic will
promote easterly today. Winds will increase again by tonight through
the weekend, bringing hazardous conditions for small craft,
particularly along the Atlantic waters and Anegada Passage. However,
the rest of the waters will gradually become hazardous through the
weekend. A cold front and pre frontal trough approaching the region
will increase shower and thunderstorm activity starting on Friday.

$$

AMZ711-282030-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
401 AM AST Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
9 seconds. Scattered showers early this morning, then isolated
showers late this morning. Scattered showers this afternoon.
.TONIGHT...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
9 seconds. Scattered showers.
.SATURDAY...East winds around 20 knots with gusts up to 30 knots.
Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet
at 9 seconds and north 3 feet at 9 seconds. Scattered showers in the
morning.
.SATURDAY NIGHT...East winds 20 to 25 knots with gusts up to
30 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail:
East 8 feet at 9 seconds and north 3 feet at 9 seconds. Scattered
showers after midnight.
.SUNDAY...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. Scattered showers.
.SUNDAY NIGHT...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 9 seconds. Scattered showers.
.MONDAY...East winds around 20 knots. Seas 7 to 9 feet, occasionally
to 11 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds around 20 knots. Seas around 8 feet,
occasionally to 10 feet.
.TUESDAY...East winds 15 to 20 knots. Seas 7 to 8 feet, occasionally
to 10 feet.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet,
occasionally to 10 feet. Scattered showers.

$$

AMZ712-282030-
Coastal Waters of Northern Puerto Rico out 10 NM-
401 AM AST Fri Mar 28 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 5 to 10 knots, increasing to 15 to 20 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 8 seconds. Numerous showers early this morning, then scattered
showers late this morning. Isolated showers this afternoon.
.TONIGHT...East 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
9 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast
6 feet at 7 seconds and north 2 feet at 10 seconds. Scattered
showers.
.SATURDAY NIGHT...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 8 seconds and north 3 feet at 9 seconds.
Scattered showers after midnight.
.SUNDAY...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
9 seconds. Scattered showers.
.SUNDAY NIGHT...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 9 seconds. Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 6 to 7 feet, occasionally
to 9 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet.
.TUESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 6 to 7 feet, occasionally to 9 feet.
Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 6 to 7 feet, occasionally to 9 feet.

$$

AMZ716-282030-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
401 AM AST Fri Mar 28 2025

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

$$

AMZ723-282030-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
401 AM AST Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...

.TODAY...East winds around 15 knots with gusts up to 20 knots. Seas
around 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet
at 7 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
6 seconds. Scattered showers.
.SATURDAY...East winds around 20 knots with gusts up to 30 knots.
Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet
at 7 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.SATURDAY NIGHT...East winds 20 to 25 knots with gusts up to
30 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail:
East 7 feet at 7 seconds. Numerous showers, mainly in the evening.
.SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
around 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at
7 seconds. Scattered showers.
.SUNDAY NIGHT...East winds 20 to 25 knots with gusts up to 30 knots.
Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: East 7 feet
at 8 seconds.
.MONDAY...East winds 20 to 25 knots. Seas 7 to 8 feet, occasionally
to 10 feet.
.MONDAY NIGHT...East winds around 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet.
.TUESDAY...East winds around 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Scattered showers.
.TUESDAY NIGHT...East winds around 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Scattered showers.

$$

AMZ726-282030-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
401 AM AST Fri Mar 28 2025

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

$$

AMZ733-282030-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
401 AM AST Fri Mar 28 2025

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

$$

AMZ735-282030-
Coastal Waters of Southern Puerto Rico out 10 NM-
401 AM AST Fri Mar 28 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers until late afternoon, then isolated
showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers after midnight.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 7 seconds. Scattered showers in the morning.
.SATURDAY NIGHT...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 7 seconds. Scattered showers in the evening, then
numerous showers after midnight.
.SUNDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
7 seconds. Scattered showers.
.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. Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally
to 8 feet.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally
to 8 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.
Scattered showers.

$$

AMZ741-282030-
Mona Passage Southward to 17N-
401 AM AST Fri Mar 28 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Isolated showers until late afternoon, then scattered
showers late.
.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
7 seconds.
.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 6 feet
at 7 seconds and north 2 feet at 9 seconds. Scattered showers in the
morning.
.SATURDAY NIGHT...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 7 seconds and north 2 feet at 9 seconds. Scattered
showers.
.SUNDAY...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. Scattered showers.
.SUNDAY NIGHT...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. Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally
to 9 feet. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet.
.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally
to 9 feet. Numerous showers, mainly in the morning.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers.

$$

AMZ742-282030-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
401 AM AST Fri Mar 28 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots late. Seas 2 to 3 feet, occasionally to 4 feet.
Wave Detail: East 2 feet at 7 seconds. Isolated showers this
morning, then scattered showers this afternoon.
.TONIGHT...East winds 15 to 20 knots with 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 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Gusts up to 30 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 6 seconds
and north 1 foot at 10 seconds. Numerous showers in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 5 feet at 6 seconds and north 3 feet at 10 seconds.
Scattered showers in the evening.
.SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet
at 8 seconds. Numerous showers in the afternoon.
.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: Northeast
5 feet at 9 seconds. Scattered showers in the evening.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Numerous showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.TUESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Numerous showers in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.

$$

AMZ745-282030-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
401 AM AST Fri Mar 28 2025

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

$$