Coastal Waters Forecast
Issued by NWS San Juan, PR

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476
FZCA52 TJSJ 160804
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
404 AM AST Mon Jun 16 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-162030-
404 AM AST Mon Jun 16 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
The surface high pressure northeast of the region will continue to
gradually shift east over the coming days. While some fluctuations in
the wind pattern are expected, moderate to locally fresh winds from
the east to east- southeast will promote choppy conditions mainly
over exposed areas, small craft should exercise caution. A plume of
suspended Saharan dust is expected to linger through midweek,
potentially causing a slight reduction in visibility. Meanwhile,
increasing moisture and instability associated with an upper-level
trough will likely lead to a rise in thunderstorm activity into early
in the week.

$$

AMZ711-162030-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
404 AM AST Mon Jun 16 2025

.TODAY...East winds around 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 and northeast 1 foot at 12 seconds. Numerous showers early
this morning. Isolated thunderstorms this morning. Scattered showers
late this morning and afternoon.
.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 and northeast 1 foot at 11 seconds. Scattered showers
after midnight.
.TUESDAY...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
6 seconds and northeast 1 foot at 11 seconds. Scattered showers in
the afternoon.
.TUESDAY 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 7 seconds and northeast 1 foot at 11 seconds.
.WEDNESDAY...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 6 seconds and northeast 1 foot at 10 seconds.
.WEDNESDAY 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 5 feet at 7 seconds and northeast 1 foot at 10 seconds.
.THURSDAY...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.  g
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-162030-
Coastal Waters of Northern Puerto Rico out 10 NM-
404 AM AST Mon Jun 16 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
late. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East
4 feet at 6 seconds and northeast 1 foot at 12 seconds. Scattered
showers with isolated thunderstorms.
.TONIGHT...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
6 seconds and northeast 1 foot at 12 seconds.
.TUESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Gusts up to 30 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 1 foot at 11 seconds.
.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.
Wave Detail: East 4 feet at 6 seconds and northeast 1 foot at
11 seconds.
.WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Gusts up to 30 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 1 foot at 10 seconds.
.WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 1 foot at 10 seconds.
.THURSDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
.FRIDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Seas around 4 feet, occasionally to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-162030-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
404 AM AST Mon Jun 16 2025

.TODAY...East winds around 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
6 seconds and north 1 foot at 12 seconds. Isolated thunderstorms.
Numerous showers early this morning, then scattered showers late
this morning and 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 4 feet at
5 seconds and northeast 1 foot at 12 seconds. Scattered showers in
the evening.
.TUESDAY...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
5 seconds and northeast 1 foot at 11 seconds.
.TUESDAY 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 5 seconds and northeast 1 foot at 11 seconds.
.WEDNESDAY...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 10 seconds.
.WEDNESDAY 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 6 seconds and northeast 1 foot at 10 seconds.
.THURSDAY...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers in the morning.
.THURSDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.FRIDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.FRIDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-162030-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
404 AM AST Mon Jun 16 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...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
6 seconds and northeast 1 foot at 12 seconds. Isolated thunderstorms
early this morning. Scattered showers this morning, then isolated
showers this afternoon.
.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 5 feet at
6 seconds and northeast 1 foot at 12 seconds.
.TUESDAY...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
6 seconds and northeast 1 foot at 11 seconds.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas around 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 6 seconds and northeast 1 foot at 11 seconds.
.WEDNESDAY...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 7 seconds and northeast 1 foot at 10 seconds.
.WEDNESDAY 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 5 feet at 7 seconds.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-162030-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
404 AM AST Mon Jun 16 2025

.TODAY...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
6 seconds. Isolated thunderstorms. Numerous showers early this
morning, then scattered showers late this morning and afternoon.
.TONIGHT...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 6 seconds. Scattered showers in the evening.
.TUESDAY...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
6 seconds.
.TUESDAY 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 5 feet at 6 seconds.
.WEDNESDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 6 seconds.
.WEDNESDAY 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 5 feet at 7 seconds.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.
.FRIDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-162030-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
404 AM AST Mon Jun 16 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
6 seconds. Numerous showers with isolated thunderstorms this
morning, then isolated showers this afternoon.
.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 5 feet at
6 seconds.
.TUESDAY...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
6 seconds.
.TUESDAY 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 6 feet at 7 seconds.
.WEDNESDAY...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.
.WEDNESDAY NIGHT...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.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-162030-
Coastal Waters of Southern Puerto Rico out 10 NM-
404 AM AST Mon Jun 16 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
7 seconds. Isolated thunderstorms this morning. Scattered showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
6 seconds.
.TUESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: East 4 feet at 7 seconds.
.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.
Wave Detail: East 5 feet at 7 seconds.
.WEDNESDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 7 seconds.
.WEDNESDAY 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 5 feet at 7 seconds.
.THURSDAY...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.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-162030-
Mona Passage Southward to 17N-
404 AM AST Mon Jun 16 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds and northeast 1 foot at 12 seconds. Isolated showers until
late afternoon, then isolated showers and thunderstorms late.
.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 5 feet at
6 seconds and northeast 1 foot at 12 seconds.
.TUESDAY...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 and northeast 1 foot at 11 seconds. Scattered showers in
the afternoon.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 7 seconds and northeast 1 foot at 11 seconds.
.WEDNESDAY...East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 7 seconds and northeast 1 foot at 11 seconds.
.WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 7 seconds.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-162030-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
404 AM AST Mon Jun 16 2025

.TODAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
late this morning and afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast
1 foot at 12 seconds. Scattered showers early this afternoon.
Numerous showers with isolated thunderstorms late.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: Northeast 3 feet at 6 seconds and northeast
1 foot at 12 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming northeast 10 to
15 knots with gusts up to 25 knots in the afternoon. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at
6 seconds and northeast 1 foot at 11 seconds. Scattered showers in
the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Gusts up to 25 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 6 seconds
and northeast 1 foot at 11 seconds.
.WEDNESDAY...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 6 seconds and northeast 1 foot at 11 seconds. Scattered
showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 6 seconds and northeast 1 foot at 10 seconds.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet.
Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Numerous showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-162030-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
404 AM AST Mon Jun 16 2025

.TODAY...East winds 5 to 10 knots with gusts up to 20 knots,
increasing to 10 to 15 knots with gusts up to 25 knots this
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Southeast 2 feet at 7 seconds and north 1 foot at 5 seconds.
Isolated showers until late afternoon, then scattered showers with
isolated thunderstorms late.
.TONIGHT...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 6 seconds.
.TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Scattered showers in the
afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: Southeast 2 feet at
6 seconds.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.FRIDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$