726
FZCA52 TJSJ 121321
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
921 AM AST Wed Mar 12 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-130215-
921 AM AST Wed Mar 12 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface high pressure over the far eastern Atlantic and a
surface low and associated front moving over the western Atlantic
will maintain light and variable winds today. By the end of the
week, the potential for showers over the local waters will increase
as the front moves closer to the area, and winds will become from
the east to northeast. A long- period northwesterly swell will spread
across the Atlantic waters on Thursday and linger through Friday.
Late in the weekend into early next week, a larger northeasterly
swell will bring hazardous seas once again across the Atlantic waters
and passages.

$$

AMZ711-130215-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming west late.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
2 feet at 5 seconds and east 2 feet at 8 seconds. Isolated showers.
.TONIGHT...Northeast winds 5 to 10 knots with gusts up to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 5 feet
at 11 seconds and east 2 feet at 8 seconds.
.THURSDAY...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet.
Wave Detail: Northwest 5 feet at 11 seconds and east 2 feet at
8 seconds. Scattered showers.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
Northwest 5 feet at 11 seconds and east 2 feet at 7 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 5 feet
at 10 seconds and east 2 feet at 7 seconds. Scattered showers.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: North
4 feet at 9 seconds and east 2 feet at 7 seconds. Numerous showers.
.SATURDAY...East winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
Scattered showers.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers.
.SUNDAY...Northeast winds around 15 knots. Seas 6 to 7 feet,
occasionally to 9 feet.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 7 to 8 feet,
occasionally to 10 feet.

$$

AMZ712-130215-
Coastal Waters of Northern Puerto Rico out 10 NM-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...South winds around 5 knots, becoming north this
afternoon. Seas around 3 feet, occasionally to 4 feet. Wave Detail:
East 2 feet at 5 seconds and east 2 feet at 8 seconds. Scattered
showers late this morning, then isolated showers this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots, becoming east after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
North 3 feet at 11 seconds and east 2 feet at 8 seconds.
.THURSDAY...East winds 5 to 10 knots, becoming northeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 3 to
5 feet, occasionally to 6 feet, building to 5 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: Northwest
5 feet at 11 seconds and east 2 feet at 8 seconds, becoming
northwest 5 feet at 11 seconds and east 1 foot at 8 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming east 5 to
10 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet.
Wave Detail: Northwest 5 feet at 11 seconds and east 1 foot at
7 seconds. Scattered showers in the evening, then numerous showers
after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Wave Detail: Northwest 5 feet at 10 seconds and east
1 foot at 7 seconds. Numerous showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: North 4 feet at 9 seconds and
east 1 foot at 7 seconds. Scattered showers.
.SATURDAY...Southeast winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Scattered
showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Numerous showers.
.SUNDAY...East winds 10 to 15 knots. Seas 5 to 6 feet, occasionally
to 8 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 6 to 7 feet,
occasionally to 9 feet.

$$

AMZ716-130215-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...South winds 5 to 10 knots, diminishing to around
5 knots this afternoon. Seas 2 to 3 feet, occasionally to 4 feet.
Wave Detail: North 2 feet at 11 seconds and southeast 1 foot at
5 seconds. Isolated showers late this morning.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: North 2 feet at 11 seconds and east 1 foot
at 7 seconds. Scattered showers after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northwest 4 feet at 12 seconds
and east 1 foot at 7 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
Northwest 5 feet at 11 seconds and east 1 foot at 7 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: Northwest 5 feet at 10 seconds and east
1 foot at 7 seconds. Numerous showers, mainly in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northwest 4 feet at 10 seconds
and east 1 foot at 7 seconds. Numerous showers.
.SATURDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Numerous showers, mainly in the morning.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet.

$$

AMZ723-130215-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds
and east 2 feet at 8 seconds. Isolated showers.
.TONIGHT...East winds around 5 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Southeast 2 feet at 6 seconds and north
1 foot at 12 seconds. Scattered showers after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 6 seconds and north 1 foot at
11 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 6 seconds and
north 1 foot at 11 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
1 foot at 7 seconds.
.FRIDAY 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 4 seconds and east 1 foot at 7 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.SUNDAY...East winds around 15 knots. Seas 4 to 6 feet, occasionally
to 8 feet. Scattered showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet.

$$

AMZ726-130215-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...South winds around 5 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds and east 2 feet at
8 seconds. Scattered showers late this morning.
.TONIGHT...Southeast winds 5 to 10 knots, becoming northeast after
midnight. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds.
Scattered showers after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 6 seconds. Scattered showers in the morning.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
East 2 feet at 4 seconds and northwest 2 feet at 8 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: East 2 feet at 4 seconds and northwest
2 feet at 10 seconds. Scattered showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northwest 2 feet at 9 seconds
and east 1 foot at 4 seconds. Numerous showers.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Numerous showers, mainly in the morning.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Numerous showers, mainly in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.

$$

AMZ733-130215-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds
and northeast 1 foot at 8 seconds. Isolated showers late this
morning.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 1 foot at 8 seconds.
Scattered showers after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 1 foot at 8 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
East 2 feet at 6 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: East 2 feet at 4 seconds and east 1 foot at
7 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 4 seconds and
east 1 foot at 7 seconds.
.SATURDAY...East winds around 10 knots. Seas around 2 feet.
Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SUNDAY...East winds around 15 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.

$$

AMZ735-130215-
Coastal Waters of Southern Puerto Rico out 10 NM-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...Southeast winds around 5 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. Scattered showers late
this morning. Isolated showers late.
.TONIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail:
East 2 feet at 6 seconds. Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 6 seconds. Scattered showers.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers in the morning, then numerous showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

$$

AMZ741-130215-
Mona Passage Southward to 17N-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 7 seconds and
north 2 feet at 11 seconds.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 6 seconds and
north 2 feet at 12 seconds.
.THURSDAY...East winds 5 to 10 knots, becoming northeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: North 4 feet at
11 seconds and east 2 feet at 5 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
North 4 feet at 11 seconds and east 3 feet at 5 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Wave Detail: North 3 feet at 10 seconds and east 2 feet
at 6 seconds. Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: North 3 feet at 9 seconds and
east 2 feet at 6 seconds.
.SATURDAY...East winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Scattered showers.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.

$$

AMZ742-130215-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...South winds around 5 knots, becoming west late.
Seas around 2 feet. Wave Detail: North 2 feet at 11 seconds and
south 1 foot at 4 seconds. Isolated showers this afternoon.
.TONIGHT...North winds around 10 knots, becoming northeast after
midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Southeast 1 foot at 4 seconds and north 1 foot at 11 seconds.
.THURSDAY...East winds 5 to 10 knots, becoming north 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet,
occasionally to 4 feet, building to 4 to 5 feet, occasionally to
6 feet in the afternoon. Wave Detail: Northwest 3 feet at 11 seconds
and north 1 foot at 3 seconds, becoming northwest 5 feet at
11 seconds. Scattered showers in the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
Northwest 5 feet at 11 seconds.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northwest 4 feet at 10 seconds.
Scattered showers in the morning, then numerous showers in the
afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: North 3 feet at 9 seconds.
.SATURDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Scattered
showers.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.SUNDAY...Northeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.

$$

AMZ745-130215-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
921 AM AST Wed Mar 12 2025

.REST OF TODAY...South winds around 5 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 5 seconds and north 1 foot at
9 seconds. Isolated showers this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds and northwest 2 feet at
10 seconds.
.THURSDAY...East winds around 5 knots, becoming northwest in the
afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northwest 4 feet at 11 seconds and northwest 1 foot at 4 seconds.
Numerous showers in the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east 5 to 10 knots after midnight. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northwest 4 feet at
9 seconds. Scattered showers in the evening.
.FRIDAY...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northwest 4 feet at 9 seconds.
Scattered showers in the morning, then numerous showers in the
afternoon.
.FRIDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northwest 3 feet at 9 seconds
and southeast 1 foot at 5 seconds.
.SATURDAY...East winds around 5 knots, becoming north around 5 knots
in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Numerous
showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SUNDAY...Northeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

$$