740
FZCA52 TJSJ 151929
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
329 PM AST Wed Oct 15 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-160815-
329 PM AST Wed Oct 15 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Winds will continue to become light to gentle from the south-
southwest through the next several days. The approaching frontal
boundary will induce a pre-frontal trough for the second half of the
workweek, increasing shower and thunderstorm activity across the
regional waters and passages. Pulses of a long period easterly swell
will reach the local exposed waters by Thursday into Friday. Pulses
of a long period northerly swell will reach the Atlantic waters and
passages from Friday into early next week.

$$

AMZ711-160815-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest winds 5 to 10 knots with gusts up to 20 knots,
increasing to 10 to 15 knots with gusts up to 20 knots late. Seas
around 3 feet. Wave Detail: East 3 feet at 8 seconds and southwest
2 feet at 3 seconds. Isolated thunderstorms.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southwest 3 feet at
4 seconds and east 2 feet at 8 seconds. Numerous showers, mainly in
the morning.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Wave Detail: Southwest 3 feet at
4 seconds and northeast 3 feet at 12 seconds. Numerous showers,
mainly in the evening.
.FRIDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: Southwest
3 feet at 4 seconds and north 3 feet at 8 seconds. Scattered
showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 5 feet.
Wave Detail: North 4 feet at 11 seconds and southwest 2 feet at
4 seconds. Scattered showers.
.SATURDAY...South winds around 5 knots. Seas 4 to 5 feet. Wave
Detail: North 4 feet at 10 seconds and east 2 feet at 9 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds around 15 knots. Seas 7 to 8 feet.
Scattered showers.
.MONDAY...East winds around 15 knots. Seas 7 to 8 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-160815-
Coastal Waters of Northern Puerto Rico out 10 NM-
329 PM AST Wed Oct 15 2025

.TONIGHT...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 with isolated thunderstorms early this
evening, then isolated showers late this evening. Isolated showers
late.
.THURSDAY...Southwest winds 5 to 10 knots, becoming west 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: West
2 feet at 4 seconds and northeast 2 feet at 8 seconds. Scattered
showers.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: West 2 feet at 4 seconds and northeast 2 feet at
8 seconds. Scattered showers in the evening.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: North 3 feet at 9 seconds and west 2 feet at 4 seconds.
Showers in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, becoming south after
midnight. Seas 4 to 5 feet. Wave Detail: North 4 feet at 11 seconds
and northeast 2 feet at 14 seconds. Scattered showers in the
evening.
.SATURDAY...Southeast winds around 5 knots, becoming east around
5 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: North
4 feet at 10 seconds and northeast 2 feet at 13 seconds. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet.
.SUNDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 5 to 6 feet. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 6 to 8 feet.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 7 to 8 feet. Scattered showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 7 to 8 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-160815-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 8 seconds and southwest 1 foot at
2 seconds. Isolated thunderstorms.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
3 seconds and northeast 2 feet at 8 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 around 3 feet. Wave Detail: Southwest 2 feet at
4 seconds and northeast 2 feet at 12 seconds. Scattered showers
after midnight.
.FRIDAY...Southwest winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southwest 2 feet at 4 seconds and
northwest 2 feet at 9 seconds. Numerous showers in the afternoon.
.FRIDAY NIGHT...Southwest 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: Northwest 4 feet at 11 seconds and southwest
2 feet at 4 seconds. Scattered showers.
.SATURDAY...South winds around 5 knots. Seas 3 to 4 feet. Wave
Detail: Northwest 4 feet at 11 seconds and northeast 2 feet at
14 seconds. Numerous showers, mainly in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Numerous showers.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Scattered
showers.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 6 to 8 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-160815-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest 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.
Isolated thunderstorms early this evening. Scattered showers this
evening, then numerous showers with isolated thunderstorms after
midnight.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at
4 seconds and northeast 2 feet at 8 seconds. Scattered showers.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southwest 3 feet at
4 seconds and northeast 2 feet at 13 seconds. Scattered showers.
.FRIDAY...South winds around 10 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southwest 2 feet at 5 seconds and
northeast 2 feet at 14 seconds. Scattered showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Southwest 3 feet at 4 seconds and northeast 2 feet at
15 seconds. Scattered showers.
.SATURDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds and north 2 feet at 13 seconds.
Scattered showers in the morning, then numerous showers in the
afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 25 knots after midnight. Seas 3 to 4 feet.
Numerous showers.
.SUNDAY...East winds around 15 knots. Seas 4 to 5 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-160815-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 8 seconds and south 1 foot at 4 seconds.
Isolated thunderstorms. Scattered showers until early morning, then
numerous showers late.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds
and east 1 foot at 8 seconds. Scattered showers.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds
and east 1 foot at 8 seconds. Scattered showers after midnight.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds and east 1 foot at 11 seconds.
Scattered showers in the afternoon.
.FRIDAY NIGHT...Southwest 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: South 2 feet at 5 seconds and east 1 foot at
10 seconds. Scattered showers.
.SATURDAY...South winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds and east 1 foot at 9 seconds.
Numerous showers, mainly in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Numerous showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. Scattered
showers.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-160815-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 8 seconds and southeast 1 foot at 5 seconds.
Isolated showers early this evening, then scattered showers late
this evening and overnight. Isolated thunderstorms late.
.THURSDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds and east 2 feet at 8 seconds. Scattered showers
in the morning.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds and east 1 foot at 8 seconds.
Scattered showers after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds and west 1 foot at 3 seconds.
Scattered showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and southwest 1 foot at
4 seconds. Scattered showers.
.SATURDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast
2 feet at 6 seconds and west 1 foot at 4 seconds. Numerous showers.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet.
Numerous showers.
.SUNDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.
Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 5 to 7 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-160815-
Coastal Waters of Southern Puerto Rico out 10 NM-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds and southwest 1 foot at
6 seconds. Scattered showers early this evening. Isolated showers
late this evening, then scattered showers with isolated
thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds and southwest 1 foot at
6 seconds. Scattered showers.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 4 seconds. Scattered showers in the
evening, then numerous showers after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds and east 1 foot at 8 seconds.
Scattered showers.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas around 2 feet.
Wave Detail: Southwest 1 foot at 4 seconds and southeast 1 foot at
5 seconds. Scattered showers in the evening, then numerous showers
after midnight.
.SATURDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 5 seconds and west 1 foot at 4 seconds. Numerous
showers, mainly in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 5 feet.
.MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-160815-
Mona Passage Southward to 17N-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 7 seconds and southwest 1 foot at 6 seconds.
Isolated showers until early morning, then scattered showers with
isolated thunderstorms late.
.THURSDAY...Southwest 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 NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds and east 2 feet at 8 seconds.
Scattered showers in the evening, then numerous showers after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and north 2 feet at 8 seconds.
Scattered showers.
.FRIDAY NIGHT...South winds 5 to 10 knots, diminishing to around
5 knots after midnight. Seas 2 to 4 feet. Wave Detail: North 3 feet
at 10 seconds and south 2 feet at 4 seconds. Scattered showers in
the evening, then numerous showers after midnight.
.SATURDAY...Southeast winds around 5 knots. Seas 3 to 4 feet. Wave
Detail: North 3 feet at 10 seconds and northeast 2 feet at
13 seconds. Scattered showers.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 5 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet.
.MONDAY...East winds 15 to 20 knots. Seas 6 to 8 feet. Scattered
showers in the morning.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-160815-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
329 PM AST Wed Oct 15 2025

.TONIGHT...Southwest 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.
Isolated showers until early morning, then scattered showers with
isolated thunderstorms late.
.THURSDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
3 seconds and northeast 2 feet at 8 seconds. Numerous showers,
mainly in the morning.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 2 feet at 4 seconds and northeast 1 foot at
8 seconds. Scattered showers in the evening, then numerous showers
after midnight.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 4 seconds and north 2 feet at
10 seconds. Scattered showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: North 3 feet at 11 seconds and southwest 2 feet at
4 seconds. Numerous showers after midnight.
.SATURDAY...South winds around 5 knots. Seas 2 to 4 feet. Wave
Detail: North 3 feet at 11 seconds and northeast 2 feet at
14 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 4 to 6 feet.
.MONDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 5 to 7 feet. Numerous showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-160815-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
329 PM AST Wed Oct 15 2025

.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 6 seconds and northwest 1 foot at 9 seconds.
Isolated showers after midnight. Scattered showers late.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds and northwest 1 foot at 9 seconds.
Numerous showers, mainly in the morning.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 4 seconds and northwest
1 foot at 9 seconds. Scattered showers in the evening, then numerous
showers after midnight.
.FRIDAY...South winds around 10 knots. Seas around 2 feet. Wave
Detail: Southwest 2 feet at 4 seconds and northwest 1 foot at
9 seconds. Scattered showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and northwest 2 feet at 9 seconds.
Scattered showers in the evening, then numerous showers after
midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 3 feet at 11 seconds and southwest 1 foot at
4 seconds. Scattered showers.
.SATURDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas 2 to 3 feet.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 4 to 6 feet. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet.

$$