294
FZCA52 TJSJ 242102
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
502 PM AST Sun Aug 24 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-250930-
502 PM AST Sun Aug 24 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A long period northerly swell will continue to spread across the
islands through early this week, resulting in hazardous seas for the
Atlantic waters and local passages. Another tropical wave will move
into the Caribbean by late tonight, moving mainly to the south of the
USVI and PR through Tuesday. This will result in moderate to fresh
easterly winds and choppy to rough seas, particularly across the
Caribbean waters.

$$

AMZ711-250930-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
7 to 8 feet. Wave Detail: East 7 feet at 7 seconds and north 6 feet
at 13 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
around 8 feet. Wave Detail: East 7 feet at 9 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas around 8 feet. Wave Detail: East 8 feet at 9 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
7 to 8 feet. Wave Detail: East 7 feet at 9 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 9 seconds.
Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas around 5 feet. Wave Detail: East 5 feet at 10 seconds.
Scattered showers in the morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 5 feet.
.THURSDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY...East winds 10 to 15 knots. Seas around 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ712-250930-
Coastal Waters of Northern Puerto Rico out 10 NM-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
7 to 8 feet. Wave Detail: East 5 feet at 6 seconds and north 5 feet
at 13 seconds. Isolated showers early this evening. Isolated showers
after midnight.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots,
increasing to 15 to 20 knots with gusts up to 35 knots in the
afternoon. Seas 7 to 8 feet. Wave Detail: Northeast 7 feet at
9 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas 7 to 8 feet.
Wave Detail: East 7 feet at 9 seconds. Scattered showers after
midnight.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
6 to 7 feet. Wave Detail: Northeast 7 feet at 9 seconds.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
30 knots, diminishing to 5 to 10 knots after midnight. Seas 5 to
7 feet. Wave Detail: Northeast 7 feet at 9 seconds.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 15 to 20 knots
with gusts up to 25 knots in the afternoon. Seas around 5 feet. Wave
Detail: Northeast 5 feet at 9 seconds. Scattered showers in the
morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, becoming southeast 5 to 10 knots after midnight. Seas 4 to
5 feet.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet. Numerous showers in the
afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to
10 knots after midnight. Seas 3 to 4 feet.
.FRIDAY...East winds 5 to 10 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet. Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet.

$$

AMZ716-250930-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
6 to 8 feet. Wave Detail: East 5 feet at 5 seconds and north 5 feet
at 14 seconds. Isolated showers early this evening. Isolated showers
late.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
6 to 8 feet. Wave Detail: East 6 feet at 6 seconds and north 5 feet
at 13 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 8 feet. Wave Detail: East 7 feet at 7 seconds and north
5 feet at 12 seconds. Scattered showers after midnight.
.TUESDAY...East winds around 15 knots with gusts up to 20 knots.
Seas 5 to 8 feet. Wave Detail: East 7 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 9 seconds.
Scattered showers after midnight.
.WEDNESDAY...East winds around 10 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 9 seconds.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.
.THURSDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
Scattered showers in the morning.
.THURSDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet.
.FRIDAY...East winds around 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ723-250930-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds around 20 knots with gusts up to 30 knots.
Seas 5 to 7 feet. Wave Detail: East 6 feet at 7 seconds and
northwest 1 foot at 11 seconds.
.MONDAY...East winds 15 to 20 knots with gusts up to 35 knots. Seas
7 to 8 feet. Wave Detail: East 7 feet at 7 seconds and northwest
1 foot at 10 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 7 to 8 feet. Wave Detail: East 7 feet at 8 seconds. Scattered
showers.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 7 feet, subsiding to 5 to 6 feet in the afternoon. Wave
Detail: East 7 feet at 8 seconds, becoming east 6 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 8 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 4 feet. Wave
Detail: East 4 feet at 9 seconds. Scattered showers in the morning.
.WEDNESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.
.THURSDAY...Southeast winds around 10 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.
.FRIDAY...East winds around 10 knots. Seas around 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ726-250930-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: East 5 feet at 6 seconds and northwest
1 foot at 8 seconds. Isolated showers early this evening. Isolated
showers after midnight.
.MONDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 7 feet. Wave Detail: East 6 feet at 7 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 7 feet. Wave Detail: East 6 feet at 7 seconds. Scattered
showers after midnight.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: East 6 feet at 7 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Wave Detail: East 5 feet at 7 seconds.
Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Scattered showers in the morning.
.THURSDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
.FRIDAY...East winds around 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ733-250930-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
502 PM AST Sun Aug 24 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

.TONIGHT...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.
.MONDAY...East winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. Gusts up to 35 knots. Seas 5 to 7 feet. Wave Detail:
East 6 feet at 6 seconds and northwest 1 foot at 11 seconds.
.MONDAY NIGHT...East winds 20 to 25 knots with gusts up to 35 knots.
Seas 6 to 8 feet. Wave Detail: East 7 feet at 7 seconds and
northwest 1 foot at 11 seconds. Scattered showers in the evening,
then numerous showers after midnight.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
7 to 8 feet, subsiding to 5 to 6 feet in the afternoon. Wave Detail:
East 7 feet at 8 seconds, becoming east 6 feet at 7 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 6 feet. Wave Detail: East 6 feet at 7 seconds.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ735-250930-
Coastal Waters of Southern Puerto Rico out 10 NM-
502 PM AST Sun Aug 24 2025

.TONIGHT...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. Isolated showers
late.
.MONDAY...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. Wave Detail:
East 5 feet at 6 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet. Wave Detail: East 6 feet at 7 seconds. Scattered
showers after midnight.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 6 feet. Wave Detail: East 6 feet at 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 5 feet. Wave Detail: East 5 feet at 8 seconds.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY...East winds 10 to 15 knots. Seas around 3 feet.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$

AMZ741-250930-
Mona Passage Southward to 17N-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots
late this evening and overnight. Seas 6 to 8 feet. Wave Detail: East
7 feet at 8 seconds and north 5 feet at 12 seconds. Isolated showers
this evening.
.MONDAY...East winds 15 to 20 knots with gusts up to 35 knots. Seas
6 to 8 feet. Wave Detail: East 7 feet at 9 seconds.
.MONDAY NIGHT...East winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Gusts up to 35 knots. Seas 7 to 8 feet.
Wave Detail: East 8 feet at 9 seconds. Numerous showers after
midnight.
.TUESDAY...East winds 15 to 20 knots with gusts up to 30 knots. Seas
6 to 8 feet. Wave Detail: East 8 feet at 9 seconds. Scattered
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 9 seconds.
Scattered showers in the evening.
.WEDNESDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 6 feet. Wave Detail: East
6 feet at 9 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 4 feet.
Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ742-250930-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
502 PM AST Sun Aug 24 2025

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

.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
5 to 7 feet. Wave Detail: North 5 feet at 13 seconds. Isolated
showers early this evening.
.MONDAY...East winds 5 to 10 knots with gusts up to 20 knots,
becoming northeast 15 to 20 knots with gusts up to 30 knots in the
afternoon. Seas 4 to 6 feet. Wave Detail: Northeast 6 feet at
6 seconds and north 5 feet at 13 seconds. Scattered showers in the
afternoon.
.MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas 5 to 7 feet.
Wave Detail: Northeast 7 feet at 9 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 7 feet. Wave Detail: Northeast 6 feet at 9 seconds. Numerous
showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: Northeast 5 feet at 10 seconds. Scattered showers in the
evening.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: Northeast 5 feet at 10 seconds. Scattered showers in the
afternoon.
.WEDNESDAY NIGHT...East winds around 5 knots, becoming southeast
after midnight. Seas 2 to 4 feet.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet.
.FRIDAY...East winds around 5 knots. Seas 2 to 3 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$

AMZ745-250930-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
502 PM AST Sun Aug 24 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave Detail:
Northwest 5 feet at 11 seconds and southeast 2 feet at 5 seconds.
Scattered showers early this evening.
.MONDAY...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave Detail:
Northwest 4 feet at 11 seconds and southeast 2 feet at 6 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight. Seas 4 to 6 feet. Wave
Detail: Northwest 4 feet at 12 seconds and east 3 feet at 6 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots,
becoming southeast 15 to 20 knots with gusts up to 30 knots in the
afternoon. Seas 3 to 5 feet. Wave Detail: Northwest 4 feet at
12 seconds and southeast 3 feet at 7 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 5 feet. Wave Detail: Northwest
4 feet at 11 seconds and southeast 3 feet at 8 seconds.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds and
northwest 2 feet at 12 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$