793
FZCA52 TJSJ 120740
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
340 AM AST Sat Jul 12 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-122015-
340 AM AST Sat Jul 12 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface high pressure across the central Atlantic will continue to
promote southeasterly winds across the region. Therefore, mariners
can expect moderate to fresh easterly winds and choppy seas across
the islands through the rest of the weekend. High Saharan dust
concentrations will continue to move across the northeastern
Caribbean through early next week, promoting hazy skies, reduced
visibilities and deteriorated air quality.


$$

AMZ711-122015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
9 seconds. Isolated showers until late afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
9 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
9 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet
at 5 seconds and east 3 feet at 9 seconds.
.MONDAY...East winds 15 to 20 knots. Gusts up to 30 knots in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 3 feet at 5 seconds and east 3 feet at 8 seconds. Scattered
showers in the afternoon.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet
at 6 seconds.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers.

$$

AMZ712-122015-
Coastal Waters of Northern Puerto Rico out 10 NM-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet
at 8 seconds. Isolated showers until late afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet
at 8 seconds.
.SUNDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 9 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
3 feet at 9 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots in the
afternoon. Seas around 3 feet, occasionally to 4 feet. Wave Detail:
East 3 feet at 5 seconds and northeast 2 feet at 9 seconds.
Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 5 seconds and northeast 1 foot at 8 seconds.
Scattered showers after midnight.
.TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

$$

AMZ716-122015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: Northeast 3 feet at 8 seconds. Isolated
showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: Northeast 3 feet
at 9 seconds.
.SUNDAY...East winds around 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds.
.SUNDAY 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 4 seconds and northeast 1 foot at 9 seconds. Scattered showers
after midnight.
.MONDAY...East winds around 15 knots with gusts up to 25 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds and northeast 1 foot at 8 seconds. Scattered showers.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet
at 5 seconds and northeast 1 foot at 8 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers in the morning, then
numerous showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.

$$

AMZ723-122015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet
at 10 seconds and southeast 2 feet at 5 seconds. Isolated showers
until late afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds and northeast 3 feet at 9 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds and northeast 2 feet at 9 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 4 seconds and northeast 2 feet at 9 seconds.
.MONDAY...East winds around 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
5 seconds and northeast 1 foot at 8 seconds. Scattered showers in
the morning.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 5 seconds and northeast 1 foot at 8 seconds. Scattered showers in
the evening.
.TUESDAY...East winds 15 to 20 knots. Seas around 4 feet,
occasionally to 5 feet. Numerous showers in the afternoon.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.WEDNESDAY...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.

$$

AMZ726-122015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
6 seconds. Scattered showers early this morning, then isolated
showers late this morning and afternoon.
.TONIGHT...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 6 seconds and east 2 feet at 9 seconds.
.SUNDAY...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
9 seconds and southeast 1 foot at 5 seconds.
.SUNDAY 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 5 seconds and east 1 foot at 9 seconds. Scattered showers
after midnight.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds and east 1 foot at 8 seconds. Scattered showers.
.MONDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 5 seconds and east 1 foot at 8 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers in the morning, then
numerous showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Numerous showers.

$$

AMZ733-122015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 3 feet at
7 seconds. Scattered showers early this morning, then isolated
showers late this morning and early afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
7 seconds and northeast 2 feet at 9 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 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, occasionally to 5 feet. Wave Detail: East 3 feet
at 5 seconds and northeast 1 foot at 9 seconds.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds and east 1 foot at 9 seconds.
.MONDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 5 seconds and east 1 foot at 8 seconds. Scattered
showers after midnight.
.TUESDAY...East winds 15 to 20 knots. Seas around 4 feet,
occasionally to 5 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.

$$

AMZ735-122015-
Coastal Waters of Southern Puerto Rico out 10 NM-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet
at 6 seconds. Isolated showers this morning.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet
at 6 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 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, occasionally to 4 feet. Wave Detail: Southeast
3 feet at 6 seconds. Scattered showers after midnight.
.MONDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet
at 5 seconds. Scattered showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast
3 feet at 5 seconds. Scattered showers after midnight.
.TUESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet.
Scattered showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Scattered showers.

$$

AMZ741-122015-
Mona Passage Southward to 17N-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
7 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
7 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
3 feet at 6 seconds. Scattered showers in the evening.
.MONDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
6 seconds and northeast 1 foot at 9 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds.
.TUESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Numerous showers.
.WEDNESDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.
Numerous showers.

$$

AMZ742-122015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
340 AM AST Sat Jul 12 2025

.TODAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots late this morning and early afternoon, then
becoming northeast 5 to 10 knots with gusts up to 20 knots late.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
3 feet at 7 seconds and south 1 foot at 7 seconds. Isolated showers
until late afternoon, then scattered showers late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: Northeast 2 feet
at 7 seconds and south 1 foot at 7 seconds.
.SUNDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave
Detail: South 1 foot at 7 seconds. Scattered showers in the
afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet.
Wave Detail: Northeast 2 feet at 4 seconds and northeast 2 feet at
9 seconds.
.MONDAY...East winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave
Detail: Northeast 2 feet at 5 seconds and south 1 foot at 6 seconds.
Numerous showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 2 feet at 5 seconds
and south 1 foot at 6 seconds. Scattered showers in the evening.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Numerous showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Numerous showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Numerous showers in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Numerous showers.

$$

AMZ745-122015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
340 AM AST Sat Jul 12 2025

.TODAY...East winds around 5 knots, becoming southeast this
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
7 seconds. Isolated showers early this afternoon. Scattered showers
late.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 7 seconds and north 1 foot at 4 seconds.
Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds and northeast 1 foot at 2 seconds.
Scattered showers in the evening.
.MONDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds. Scattered showers in
the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: South 2 feet
at 5 seconds and east 1 foot at 2 seconds.
.TUESDAY...East winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet.
Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet.
Numerous showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Numerous showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Numerous showers.

$$