430
FZCA52 TJSJ 302115
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
515 PM AST Thu Jul 30 2026

Puerto Rico and the U.S. Virgin Islands Waters

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.

AMZ700-311015-
515 PM AST Thu Jul 30 2026

.Synopsis for Puerto Rico and the U.S. Virgin Islands Waters...
A surface high pressure continues to strengthen over the central
Atlantic, tightening the pressure gradient, promoting moderate to
locally fresh east to east-southeast for the next few days. These
conditions will maintain choppy seas across portions of the local
Atlantic and Caribbean waters, including the local passages.
Moderate concentrations of Saharan Dust will bring hazy skies and
slightly reduce visibility throughout the workweek.

$$

AMZ711-311015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
8 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
8 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 8 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 8 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas around 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Numerous showers, mainly in the evening.
.SUNDAY...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
8 seconds and south 1 foot at 5 seconds. Scattered showers.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet, occasionally to 5 feet. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ712-311015-
Coastal Waters of Northern Puerto Rico out 10 NM-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 25 knots after
midnight. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
East 5 feet at 8 seconds. Isolated showers this evening, then
scattered showers after midnight.
.FRIDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Gusts up to 30 knots. Seas around 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Scattered showers.
.FRIDAY 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 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 8 seconds.
.SATURDAY...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 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 8 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots, becoming southeast 5 to 10 knots after midnight. Seas 4 to
5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
8 seconds. Scattered showers.
.SUNDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.
Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.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.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.

$$

AMZ716-311015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
8 seconds. Scattered showers.
.FRIDAY 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 7 seconds.
.SATURDAY...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 8 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.SATURDAY 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 7 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Scattered showers.
.MONDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.

$$

AMZ723-311015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
7 seconds. Isolated showers after midnight.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 7 seconds. Scattered showers after midnight.
.SATURDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Numerous showers, mainly in the
morning.
.SATURDAY 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 4 feet at 7 seconds. Scattered showers after midnight.
.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. Scattered showers.
.SUNDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas around 4 feet, occasionally to 5 feet.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
.MONDAY NIGHT...East winds around 15 knots. Seas around 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
Scattered showers.

$$

AMZ726-311015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet
at 7 seconds.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet
at 7 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.SATURDAY 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 7 seconds. Scattered showers after midnight.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. Scattered
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers.
.MONDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.

$$

AMZ733-311015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
7 seconds. Isolated showers until early morning, then scattered
showers late.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
7 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet
at 7 seconds.
.SATURDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 4 feet at 7 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY...East winds around 15 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.TUESDAY...East winds around 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.TUESDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ735-311015-
Coastal Waters of Southern Puerto Rico out 10 NM-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots
late. Gusts up to 30 knots. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Southeast 4 feet at 7 seconds. Isolated
showers.
.FRIDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: East 4 feet at 7 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...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 7 seconds.
.SATURDAY...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 7 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...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 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: Southeast 3 feet
at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet.
.MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ741-311015-
Mona Passage Southward to 17N-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
7 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
7 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 7 seconds.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 7 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.
Wave Detail: Southeast 5 feet at 7 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet
at 7 seconds. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally
to 6 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.

$$

AMZ742-311015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
515 PM AST Thu Jul 30 2026

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

$$

AMZ745-311015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
515 PM AST Thu Jul 30 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots,
becoming east 5 to 10 knots with gusts up to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at
7 seconds.
.FRIDAY...East winds around 5 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 2 to
3 feet. Wave Detail: South 2 feet at 6 seconds. Scattered showers in
the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. Scattered
showers in the evening.
.SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. Scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 3 feet
at 6 seconds.
.SUNDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.TUESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$