542
FZCA52 TJSJ 191949
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
349 PM AST Sat Jul 19 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-200815-
349 PM AST Sat Jul 19 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
An induced surface trough will bring an increase in showers and
thunderstorms across the regional waters through early Sunday
morning. A surface high pressure over the Atlantic will mainly
promote moderate easterly winds over several days, becoming moderate
to fresh again around Tuesday next week.

$$

AMZ711-200815-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
349 PM AST Sat Jul 19 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds and northeast 2 feet at 11 seconds. Isolated thunderstorms
early this evening. Scattered showers this evening, then isolated
showers after midnight.
.SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds and northeast 2 feet at 11 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 6 seconds and northeast 1 foot at 10 seconds.
Scattered showers.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
6 seconds and northeast 1 foot at 10 seconds.
.MONDAY NIGHT...East winds 10 to 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 and northeast 1 foot at 9 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds and northeast 1 foot at 9 seconds.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers in the morning.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-200815-
Coastal Waters of Northern Puerto Rico out 10 NM-
349 PM AST Sat Jul 19 2025

.TONIGHT...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,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds
and northeast 1 foot at 11 seconds. Isolated showers this evening,
then scattered showers after midnight.
.SUNDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 7 seconds and northeast 1 foot at 10 seconds.
.SUNDAY NIGHT...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 6 seconds and northeast 1 foot at 11 seconds. Scattered showers
in the evening.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 6 seconds and northeast 1 foot at 10 seconds.
Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 6 seconds and northeast 1 foot at 10 seconds. Scattered
showers.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 4 feet at 7 seconds and northeast 1 foot at 9 seconds.
Scattered showers in the morning.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers in the afternoon.
.WEDNESDAY 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.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Numerous showers.

$$

AMZ716-200815-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
349 PM AST Sat Jul 19 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
6 seconds and northeast 1 foot at 10 seconds. Isolated showers early
this evening, then scattered showers late this evening and
overnight.
.SUNDAY...East winds around 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
5 seconds and northeast 2 feet at 10 seconds. Scattered showers.
.SUNDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 3 feet at 5 seconds and northeast 3 feet at 10 seconds.
Scattered showers in the evening.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
5 seconds and northeast 1 foot at 10 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
5 seconds and northeast 1 foot at 9 seconds. Scattered showers in
the morning.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet.
.WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds around 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.

$$

AMZ723-200815-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
349 PM AST Sat Jul 19 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
6 seconds and northeast 2 feet at 10 seconds. Isolated showers late
this evening. Scattered showers after midnight, then isolated
showers late.
.SUNDAY...East winds around 15 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
5 seconds and northeast 2 feet at 11 seconds.
.SUNDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet
at 6 seconds and northeast 1 foot at 10 seconds.
.MONDAY...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
6 seconds and northeast 1 foot at 10 seconds.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 6 seconds and northeast 1 foot at 10 seconds. Scattered showers.
.TUESDAY...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
6 seconds and northeast 1 foot at 9 seconds.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet.
.WEDNESDAY...East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...East winds around 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds around 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Numerous showers.

$$

AMZ726-200815-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
349 PM AST Sat Jul 19 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
6 seconds. Scattered showers early this evening, then isolated
showers late this evening. Scattered showers after midnight.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 3 feet at 5 seconds. Scattered showers.
.MONDAY...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
6 seconds.
.MONDAY NIGHT...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 6 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
6 seconds. Scattered showers in the morning.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Numerous showers.

$$

AMZ733-200815-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
349 PM AST Sat Jul 19 2025

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

$$

AMZ735-200815-
Coastal Waters of Southern Puerto Rico out 10 NM-
349 PM AST Sat Jul 19 2025

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

$$

AMZ741-200815-
Mona Passage Southward to 17N-
349 PM AST Sat Jul 19 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
6 seconds and northeast 1 foot at 9 seconds. Scattered showers early
this evening. Scattered showers after midnight, then isolated
showers late.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
6 seconds and northeast 1 foot at 9 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Wave Detail: East 4 feet at 6 seconds and northeast 1 foot at
10 seconds. Scattered showers in the evening.
.MONDAY...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
6 seconds and northeast 1 foot at 10 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Wave Detail: East 4 feet at 6 seconds and northeast 1 foot at
10 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
6 seconds and northeast 1 foot at 10 seconds.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered
showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers in the morning.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.

$$

AMZ742-200815-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
349 PM AST Sat Jul 19 2025

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast
1 foot at 9 seconds. Isolated showers early this evening. Isolated
showers after midnight.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast
1 foot at 10 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: Northeast 2 feet at 6 seconds
and northeast 1 foot at 10 seconds. Scattered showers in the
evening.
.MONDAY...East winds around 5 knots, becoming northeast with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet, occasionally to
4 feet. Wave Detail: Northeast 2 feet at 6 seconds and northeast
1 foot at 10 seconds. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 2 feet at 6 seconds
and northeast 1 foot at 10 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: East 2 feet at 6 seconds and northeast
1 foot at 10 seconds. Numerous showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet.
.WEDNESDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 3 feet, occasionally to 4 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, occasionally to 5 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Numerous showers in the afternoon.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet.

$$

AMZ745-200815-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
349 PM AST Sat Jul 19 2025

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

$$