951
FZCA52 TJSJ 131956
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
356 PM AST Mon Oct 13 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-140830-
356 PM AST Mon Oct 13 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...

A broad surface ridge north of the region continues to dominate the
local marine area, maintaining moderate east to east-southeast trade
winds. A surge of moisture embedded in the trades will move across
the local waters tonight into early Tuesday, bringing scattered
showers and brief wind surges, without ruling out isolated
thunderstorms. A weak tropical wave will cross the Lesser Antilles
on Tuesday, moving south of the region by Wednesday. Then, a cold
front will move closer to the area from the northwest, inducing pre-
frontal troughs for the second half of the workweek.

$$

AMZ711-140830-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas around 5 feet. Wave Detail: East 5 feet at 8 seconds. Scattered
showers. Isolated thunderstorms late this evening.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 8 seconds and northwest
1 foot at 11 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 4 feet.
Wave Detail: East 4 feet at 8 seconds and northwest 1 foot at
10 seconds. Scattered showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 8 seconds and south 1 foot at 3 seconds.
Scattered showers.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds
and south 2 feet at 3 seconds. Scattered showers.
.THURSDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas around
3 feet. Wave Detail: Southwest 2 feet at 4 seconds and east 2 feet
at 9 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Scattered showers.
.FRIDAY...Southwest winds 10 to 15 knots, becoming west 5 to
10 knots in the afternoon. Seas 4 to 6 feet. Scattered showers in
the afternoon.
.FRIDAY NIGHT...West winds around 5 knots, becoming south after
midnight. Seas 5 to 6 feet. Scattered showers.
.SATURDAY...Southeast winds around 5 knots, becoming east in the
afternoon. Seas around 5 feet.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 5 to 6 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-140830-
Coastal Waters of Northern Puerto Rico out 10 NM-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and north 3 feet
at 9 seconds. Numerous showers with isolated thunderstorms this
evening, then scattered showers after midnight.
.TUESDAY...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
3 feet at 9 seconds. Scattered showers.
.TUESDAY NIGHT...Southeast 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 and northwest
1 foot at 11 seconds. Scattered showers after midnight.
.WEDNESDAY...South winds around 5 knots, becoming west with gusts up
to 20 knots in the afternoon. Seas around 3 feet. Wave Detail: East
3 feet at 8 seconds and northwest 1 foot at 9 seconds. Numerous
showers in the afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
3 feet. Wave Detail: Northeast 3 feet at 8 seconds and northwest
1 foot at 9 seconds. Numerous showers, mainly in the evening.
.THURSDAY...Southwest winds around 5 knots, becoming west with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 8 seconds and west 1 foot at 3 seconds.
Scattered showers.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY...West winds 5 to 10 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots, becoming south after
midnight. Seas 4 to 5 feet.
.SATURDAY...Southeast winds around 5 knots, becoming northeast in
the afternoon. Seas around 5 feet. Scattered showers in the
afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-140830-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and
northeast 2 feet at 9 seconds. Numerous showers with isolated
thunderstorms this evening, then scattered showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail:
East 3 feet at 5 seconds and northeast 3 feet at 8 seconds.
Scattered showers.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 8 seconds and northwest 1 foot at
11 seconds. Scattered showers.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 2 to
3 feet. Wave Detail: Northeast 3 feet at 8 seconds and northwest
1 foot at 10 seconds. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southwest 2 feet at 3 seconds and northeast
2 feet at 8 seconds. Scattered showers after midnight.
.THURSDAY...Southwest 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: Southwest 2 feet at 3 seconds and northeast
2 feet at 8 seconds. Scattered showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet.
.FRIDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 3 to 4 feet. Scattered showers in
the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots, becoming southwest after
midnight. Seas 3 to 5 feet. Scattered showers.
.SATURDAY...South winds around 5 knots. Seas 4 to 5 feet.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-140830-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and
northeast 3 feet at 9 seconds. Numerous showers with isolated
thunderstorms this evening, then scattered showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail:
Northeast 4 feet at 9 seconds and east 3 feet at 5 seconds.
Scattered showers in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Northeast 3 feet at 8 seconds and southeast 2 feet at
5 seconds. Scattered showers in the evening.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 8 seconds and southeast 1 foot at
4 seconds.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and northeast 2 feet at 8 seconds.
Scattered showers.
.THURSDAY...Southwest 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: South 2 feet at 4 seconds and northeast 2 feet
at 9 seconds.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Scattered showers.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 3 feet.
Scattered showers.
.SATURDAY...South winds around 5 knots. Seas 3 to 4 feet. Numerous
showers in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-140830-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. Numerous
showers with isolated thunderstorms this evening, then scattered
showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail:
East 3 feet at 5 seconds and east 3 feet at 8 seconds. Scattered
showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 8 seconds and southeast 1 foot at
5 seconds. Scattered showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds and east 2 feet at 8 seconds.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at
8 seconds.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 3 seconds and east 1 foot at 8 seconds.
Scattered showers in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet.
.FRIDAY...Southwest winds around 10 knots. Seas 2 to 3 feet.
Scattered showers in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, diminishing to around
5 knots after midnight. Seas 2 to 3 feet. Scattered showers.
.SATURDAY...South winds around 5 knots. Seas 2 to 4 feet. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-140830-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: East 4 feet at 7 seconds. Numerous
showers with isolated thunderstorms this evening, then scattered
showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail:
East 4 feet at 7 seconds. Scattered showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: East 3 feet at 7 seconds. Scattered showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 7 seconds. Scattered showers in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at
8 seconds. Scattered showers in the evening.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds and east 1 foot at 8 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...South winds around 5 knots. Seas around 2 feet.
Scattered showers.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-140830-
Coastal Waters of Southern Puerto Rico out 10 NM-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
late. Seas 2 to 4 feet. Wave Detail: East 3 feet at 6 seconds.
Scattered showers. Isolated thunderstorms late this evening.
.TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
6 seconds. Scattered showers in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Scattered showers after
midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds. Scattered showers in the morning.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Scattered
showers.
.THURSDAY...Southwest winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 1 foot at 6 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...Southwest winds around 5 knots, becoming east after
midnight. Seas around 2 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-140830-
Mona Passage Southward to 17N-
356 PM AST Mon Oct 13 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 6 seconds and north 2 feet
at 10 seconds. Scattered showers with isolated thunderstorms this
evening. Numerous showers after midnight.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots,
becoming southeast 5 to 10 knots in the afternoon. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 6 seconds and north 2 feet at 9 seconds.
Scattered showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: East 3 feet at 6 seconds and north 2 feet at 9 seconds.
Scattered showers after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds and north 1 foot at 9 seconds.
Scattered showers.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds and northeast 2 feet at
8 seconds. Scattered showers in the evening.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northeast 2 feet at
8 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southwest winds around 5 knots, becoming southeast
around 5 knots after midnight. Seas 3 to 4 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-140830-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight, then increasing to
10 to 15 knots with gusts up to 20 knots late. Seas 2 to 4 feet.
Wave Detail: East 2 feet at 5 seconds and north 2 feet at
10 seconds. Isolated showers this evening. Isolated showers late.
.TUESDAY...East winds 5 to 10 knots with gusts up to 20 knots,
becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds and north 2 feet at 9 seconds. Numerous
showers in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots, becoming southeast after
midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds
and north 2 feet at 9 seconds. Scattered showers in the evening.
.WEDNESDAY...South 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: South 2 feet at 3 seconds and northeast 2 feet at 9 seconds.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 3 seconds and northeast 2 feet at 8 seconds.
Scattered showers after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 3 seconds and northeast 2 feet at
8 seconds. Scattered showers.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Scattered
showers.
.FRIDAY NIGHT...Southwest winds around 5 knots, becoming southeast
around 5 knots after midnight. Seas 2 to 4 feet. Scattered showers.
.SATURDAY...Southeast winds around 5 knots, becoming southwest
around 5 knots in the afternoon. Seas 3 to 4 feet. Numerous showers
in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.

$$

AMZ745-140830-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
356 PM AST Mon Oct 13 2025

.TONIGHT...East winds 5 to 10 knots, diminishing to around 5 knots
late. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds
and northwest 2 feet at 10 seconds. Isolated showers early this
evening.
.TUESDAY...East winds around 5 knots, becoming southeast with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
South 2 feet at 6 seconds and northwest 1 foot at 9 seconds.
Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northwest 1 foot at
10 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds and northwest 1 foot at
10 seconds. Scattered showers.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 5 seconds and northwest 1 foot at
9 seconds. Scattered showers.
.THURSDAY...South winds around 5 knots, becoming southwest in the
afternoon. Seas around 2 feet. Wave Detail: Southwest 1 foot at
4 seconds and northwest 1 foot at 8 seconds. Scattered showers in
the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY NIGHT...South winds around 5 knots, becoming southeast
around 5 knots after midnight. Seas 2 to 3 feet.
.SATURDAY...Southeast winds around 5 knots. Seas 2 to 4 feet.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$