489
FZCA52 TJSJ 082013
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
413 PM AST Fri Aug 8 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-090915-
413 PM AST Fri Aug 8 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Mariners can expect a moderate to fresh easterly wind flow
generating moderate chops across the local waters. Afternoon
convection will develop across the Mona Passage daily. An induced
surface trough will increase rain activity and the potential for
thunderstorms from late tonight/early Saturday morning, into the
afternoon. Invest 96L will move far to the northeast from the
northern USVI around Monday or Tuesday.

$$

AMZ711-090915-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 8 seconds and east 3 feet
at 5 seconds. Isolated showers early this evening, then scattered
showers late this evening and overnight.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 8 seconds. Scattered
showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 8 seconds.
Scattered showers after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail:
East 4 feet at 8 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: Northeast 4 feet at 9 seconds and
southeast 3 feet at 4 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet. Wave Detail: Northeast 4 feet at 9 seconds and east
3 feet at 4 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas around 4 feet.
.TUESDAY...East winds 10 to 15 knots. Seas around 4 feet. Scattered
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ712-090915-
Coastal Waters of Northern Puerto Rico out 10 NM-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots late. Seas 3 to 4 feet. Wave Detail:
East 3 feet at 5 seconds and northeast 3 feet at 9 seconds. Isolated
showers this evening, then scattered showers after midnight.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 25 knots in the afternoon. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 8 seconds. Scattered showers.
.SATURDAY 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: Northeast 3 feet at 8 seconds. Scattered
showers.
.SUNDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 25 knots in the afternoon. Seas around 3 feet. Wave
Detail: Northeast 3 feet at 9 seconds. Scattered showers in the
afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 4 seconds and northeast 3 feet at 9 seconds.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at
5 seconds and northeast 4 feet at 10 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Scattered showers.
.TUESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet. Scattered showers in the
afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet.
.WEDNESDAY...East winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ716-090915-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 8 seconds and east 2 feet at 4 seconds. Isolated
showers early this evening, then scattered showers late this evening
and overnight.
.SATURDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 4 seconds and northeast 2 feet at 8 seconds.
Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds
and east 2 feet at 4 seconds. Scattered showers in the evening.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 9 seconds and east 2 feet at 4 seconds.
Scattered showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds and
east 2 feet at 4 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast
3 feet at 10 seconds. Scattered showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Numerous
showers, mainly in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ723-090915-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds and
northeast 3 feet at 8 seconds. Isolated showers early this evening,
then scattered showers late this evening and overnight.
.SATURDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds and northeast 2 feet at
8 seconds. Scattered showers in the morning.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: Southeast 2 feet at
5 seconds and northeast 2 feet at 8 seconds. Scattered showers in
the evening.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds and northeast 2 feet at
9 seconds. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and
northeast 2 feet at 10 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 5 seconds and northeast
2 feet at 10 seconds.
.MONDAY NIGHT...East winds around 15 knots with gusts up to
20 knots. Seas around 4 feet. Scattered showers.
.TUESDAY...East winds around 15 knots. Seas around 4 feet. Scattered
showers in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds around 15 knots. Seas around 4 feet.

$$

AMZ726-090915-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. Isolated showers
early this evening, then scattered showers late this evening and
overnight.
.SATURDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds.
Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
5 seconds and east 2 feet at 8 seconds. Scattered showers in the
evening.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds.
Scattered showers.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds and
northeast 2 feet at 8 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 5 seconds and northeast
2 feet at 8 seconds. Scattered showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet.
.TUESDAY...East winds 10 to 15 knots. Seas around 3 feet. Numerous
showers, mainly in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ733-090915-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
413 PM AST Fri Aug 8 2025

.TONIGHT...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. Isolated showers
this evening, then scattered showers after midnight.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at
5 seconds and northeast 2 feet at 8 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: East 3 feet at 7 seconds. Scattered
showers in the afternoon.
.SUNDAY NIGHT...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. Scattered
showers.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot
at 8 seconds. Scattered showers in the morning.
.MONDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Scattered showers.
.TUESDAY...East winds around 15 knots. Seas 3 to 4 feet. Scattered
showers in the morning.
.TUESDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

$$

AMZ735-090915-
Coastal Waters of Southern Puerto Rico out 10 NM-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
late. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
Scattered showers with isolated thunderstorms early this evening,
then isolated showers late this evening and overnight.
.SATURDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds. Scattered showers.
.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 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-090915-
Mona Passage Southward to 17N-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds. Isolated
showers early this evening, then scattered showers with isolated
thunderstorms late this evening. Isolated showers after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 7 seconds.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds
and northeast 2 feet at 9 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast
2 feet at 9 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and
northeast 2 feet at 9 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 6 seconds and north
2 feet at 9 seconds. Scattered showers.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 3 to 4 feet. Scattered showers in the
afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-090915-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
413 PM AST Fri Aug 8 2025

.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this evening, then diminishing to
5 to 10 knots with gusts up to 20 knots after midnight. Seas 2 to
3 feet. Wave Detail: Northeast 2 feet at 5 seconds. Scattered
showers with isolated thunderstorms early this evening, then
isolated showers late this evening and early morning.
.SATURDAY...Northeast winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 5 seconds and north 2 feet at 8 seconds.
Numerous showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 9 seconds and southeast 1 foot at
6 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and north 2 feet at 9 seconds.
Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: North 2 feet at 9 seconds and southeast 1 foot at 5 seconds.
.MONDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds and north 2 feet at 10 seconds. Scattered
showers in the morning, then numerous showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Numerous
showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-090915-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
413 PM AST Fri Aug 8 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 7 seconds.
Numerous showers with isolated thunderstorms early this evening,
then scattered showers late this evening.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 6 seconds and north 1 foot at 7 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Seas around
2 feet. Wave Detail: East 2 feet at 5 seconds and north 1 foot at
7 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
East 2 feet at 5 seconds and north 1 foot at 7 seconds. Scattered
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 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds and northwest 1 foot at
9 seconds.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 6 seconds and northwest 1 foot at 9 seconds.
Scattered showers.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY...East winds 5 to 10 knots, diminishing to around 5 knots
in the afternoon. Seas around 2 feet. Scattered showers in the
afternoon.
.WEDNESDAY NIGHT...Northeast winds around 5 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$