423
FZCA52 TJSJ 060752
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
352 AM AST Mon Oct 6 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-062015-
352 AM AST Mon Oct 6 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A long-period northeasterly swell will continue to spread across the
local Atlantic waters and passages through at least Tuesday.
Therefore, marine and coastal conditions will continue deteriorated
through mid-week. A tropical wave will approach the region today,
increasing the frequency of showers and thunderstorms across the
regional waters, particularly during the afternoon hours.

$$

AMZ711-062015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
352 AM AST Mon Oct 6 2025

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

.TODAY...East winds 10 to 15 knots. Seas 8 to 9 feet. Wave Detail:
Northeast 7 feet at 14 seconds and east 2 feet at 8 seconds.
Scattered showers with isolated thunderstorms until late afternoon,
then isolated showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 8 feet, subsiding to 6 to 7 feet after midnight. Wave Detail:
Northeast 7 feet at 14 seconds and east 3 feet at 7 seconds,
becoming northeast 6 feet at 13 seconds and east 3 feet at
7 seconds. Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas 6 to 7 feet. Wave Detail:
Northeast 6 feet at 13 seconds and east 3 feet at 7 seconds.
Scattered showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 5 feet.
Wave Detail: Northeast 4 feet at 12 seconds and east 3 feet at
7 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 4 to 5 feet. Wave
Detail: Northeast 4 feet at 9 seconds and northeast 4 feet at
11 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
4 feet. Wave Detail: Northeast 4 feet at 9 seconds.
.THURSDAY...East winds 5 to 10 knots. Seas around 4 feet.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet.
.FRIDAY...East winds 5 to 10 knots. Seas 5 to 7 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...East winds around 5 knots, becoming southeast after
midnight. Seas 5 to 7 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-062015-
Coastal Waters of Northern Puerto Rico out 10 NM-
352 AM AST Mon Oct 6 2025

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

.TODAY...East winds 5 to 10 knots. Seas around 8 feet. Wave Detail:
Northeast 7 feet at 13 seconds and east 1 foot at 8 seconds.
Isolated thunderstorms early this morning. Scattered showers this
morning. Isolated showers this afternoon.
.TONIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas
6 to 8 feet. Wave Detail: Northeast 7 feet at 14 seconds. Scattered
showers in the evening.
.TUESDAY...East winds 5 to 10 knots. Seas around 6 feet. Wave
Detail: Northeast 6 feet at 13 seconds. Scattered showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 5 feet.
Wave Detail: Northeast 5 feet at 12 seconds and east 2 feet at
7 seconds. Scattered showers in the evening.
.WEDNESDAY...Southeast winds around 5 knots, becoming east with
gusts up to 20 knots in the afternoon. Seas around 4 feet. Wave
Detail: Northeast 4 feet at 11 seconds and east 2 feet at 7 seconds.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas around 4 feet. Wave Detail: Northeast 4 feet at
10 seconds. Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet.
.FRIDAY...East winds around 5 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots, becoming south after
midnight. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-062015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
352 AM AST Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...East winds 10 to 15 knots. Seas 5 to 8 feet. Wave Detail:
Northeast 7 feet at 13 seconds. Numerous showers this morning.
Isolated thunderstorms. Scattered showers this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
5 to 7 feet. Wave Detail: Northeast 6 feet at 14 seconds. Scattered
showers in the evening, then numerous showers after midnight.
.TUESDAY...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave Detail:
Northeast 6 feet at 13 seconds. Numerous showers, mainly in the
morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet.
Wave Detail: Northeast 4 feet at 12 seconds. Scattered showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: Northeast 4 feet at 11 seconds and east 2 feet at 7 seconds.
Scattered showers.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 9 seconds and northeast 3 feet at
11 seconds. Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 3 to 4 feet. Scattered showers.
.FRIDAY NIGHT...Southeast winds around 5 knots, becoming south after
midnight. Seas 3 to 5 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-062015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
352 AM AST Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...East winds 10 to 15 knots. Seas 7 to 8 feet. Wave Detail:
Northeast 6 feet at 13 seconds and east 3 feet at 5 seconds.
Isolated thunderstorms. Scattered showers until late afternoon, then
numerous showers late.
.TONIGHT...East winds around 10 knots with gusts up to 20 knots.
Seas 6 to 7 feet. Wave Detail: Northeast 6 feet at 14 seconds.
Numerous showers.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet. Wave
Detail: Northeast 5 feet at 13 seconds. Scattered showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 4 to 5 feet.
Wave Detail: Northeast 4 feet at 12 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 4 feet.
Wave Detail: Northeast 3 feet at 11 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.
Wave Detail: Northeast 3 feet at 9 seconds and northeast 3 feet at
11 seconds. Scattered showers.
.THURSDAY...East winds around 10 knots. Seas around 4 feet.
Scattered showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 4 feet.
Scattered showers.
.FRIDAY...East winds around 5 knots. Seas 4 to 5 feet, building to
5 to 7 feet in the afternoon. Scattered showers.
.FRIDAY NIGHT...South winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas 5 to 8 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-062015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
352 AM AST Mon Oct 6 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail:
East 3 feet at 4 seconds and northeast 2 feet at 13 seconds.
Scattered showers. Isolated thunderstorms late this morning and
afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 6 feet. Wave Detail: East 3 feet at 6 seconds and northeast
2 feet at 13 seconds. Scattered showers in the evening, then
numerous showers after midnight.
.TUESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet. Wave Detail:
East 2 feet at 4 seconds and east 2 feet at 7 seconds. Numerous
showers, mainly in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
Wave Detail: East 2 feet at 7 seconds and northeast 2 feet at
12 seconds. Scattered showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: East 2 feet at 8 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds and southeast 1 foot at 4 seconds.
Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Scattered showers.
.FRIDAY...East winds around 5 knots. Seas 2 to 4 feet. Scattered
showers.
.FRIDAY NIGHT...South winds around 5 knots, becoming southwest after
midnight. Seas 4 to 6 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-062015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
352 AM AST Mon Oct 6 2025

.TODAY...East winds around 10 knots. Seas 3 to 5 feet. Wave Detail:
East 3 feet at 4 seconds and east 1 foot at 8 seconds. Scattered
showers with isolated thunderstorms.
.TONIGHT...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
1 foot at 13 seconds. Numerous showers.
.TUESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail:
East 3 feet at 6 seconds and northeast 1 foot at 13 seconds.
Numerous showers, mainly in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 6 seconds and northeast 1 foot at
13 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 feet at 8 seconds.
Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas around 3 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet.
Scattered showers.
.FRIDAY...East winds around 5 knots. Seas 3 to 4 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...South winds around 5 knots. Seas 3 to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-062015-
Coastal Waters of Southern Puerto Rico out 10 NM-
352 AM AST Mon Oct 6 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 4 seconds and east 1 foot at 7 seconds. Isolated
showers this morning, then numerous showers with isolated
thunderstorms this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 4 seconds. Numerous showers in the evening.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 5 seconds. Scattered showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. Scattered showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 4 seconds. Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...East winds around 5 knots. Seas 2 to 3 feet. Scattered
showers in the afternoon.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-062015-
Mona Passage Southward to 17N-
352 AM AST Mon Oct 6 2025

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

.TODAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet. Wave
Detail: North 6 feet at 12 seconds and east 1 foot at 9 seconds.
Scattered showers this morning. Isolated thunderstorms late this
morning, then isolated showers this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 5 to 7 feet. Wave Detail: North 6 feet at 13 seconds and east
2 feet at 4 seconds. Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 5 to 7 feet. Wave Detail:
North 6 feet at 13 seconds and east 2 feet at 5 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet. Wave
Detail: North 4 feet at 13 seconds and east 2 feet at 5 seconds.
.WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 5 feet. Wave
Detail: North 4 feet at 12 seconds and east 2 feet at 5 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: North 3 feet at 11 seconds and southeast 2 feet at
5 seconds. Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds 5 to 10 knots, diminishing to around
5 knots after midnight. Seas around 3 feet.
.FRIDAY...East winds around 5 knots. Seas around 3 feet.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 3 to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-062015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
352 AM AST Mon Oct 6 2025

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

.TODAY...East winds 5 to 10 knots, becoming northeast late this
morning, then increasing to 5 to 10 knots this afternoon. Seas 4 to
6 feet. Wave Detail: Northeast 6 feet at 13 seconds. Isolated
showers and thunderstorms early this afternoon. Scattered showers
with isolated thunderstorms late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
5 to 7 feet. Wave Detail: Northeast 7 feet at 13 seconds.
.TUESDAY...East winds 5 to 10 knots, diminishing to around 5 knots
in the afternoon. Seas 4 to 6 feet. Wave Detail: Northeast 6 feet at
13 seconds. Showers in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots. Seas 3 to 5 feet. Wave
Detail: Northeast 5 feet at 13 seconds. Numerous showers in the
evening.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 4 feet at 12 seconds. Scattered showers in the
afternoon.
.WEDNESDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 4 feet at 10 seconds and south 1 foot at
3 seconds.
.THURSDAY...East winds around 5 knots. Seas 2 to 3 feet. Numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds around 5 knots in the evening, becoming
light and variable. Seas 2 to 3 feet.
.FRIDAY...East winds around 5 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-062015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
352 AM AST Mon Oct 6 2025

.TODAY...Northeast winds around 5 knots, becoming north this
afternoon. Seas 2 to 4 feet. Wave Detail: Northwest 3 feet at
12 seconds. Scattered showers with isolated thunderstorms early this
afternoon. Numerous showers with isolated thunderstorms late.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: Northwest 3 feet at 13 seconds and southeast 1 foot at
4 seconds. Numerous showers in the evening.
.TUESDAY...Southeast winds around 5 knots. Seas 2 to 4 feet. Wave
Detail: Northwest 3 feet at 13 seconds. Numerous showers in the
afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 13 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northwest 2 feet at 12 seconds and southeast 1 foot at
3 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 1 foot at 3 seconds and northwest 1 foot at
11 seconds.
.THURSDAY...Southeast winds around 5 knots. Seas around 2 feet.
Numerous showers in the afternoon.
.THURSDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
.FRIDAY...Southeast winds around 5 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds around 5 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$