Coastal Waters Forecast
Issued by NWS San Juan, PR

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723
FZCA52 TJSJ 140655
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
255 AM AST Mon Sep 14 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.

AMZ700-141915-
255 AM AST Mon Sep 14 2026

.Synopsis for Puerto Rico and the U.S. Virgin Islands Waters...

Moderate to locally fresh easterly trade winds will continue
across the regional waters through much of the week, maintaining
moderate chops to choppy seas. A tropical wave is forecast to
approach the eastern Caribbean on Wednesday and move across the
region through Thursday, bringing an increase in showers and
thunderstorms. Conditions should gradually improve on Friday as the
wave moves west of the local area, while moderate easterly trades
persist.

$$

AMZ711-141915-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
255 AM AST Mon Sep 14 2026

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
9 seconds. Isolated showers this morning. Isolated showers late.
.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 9 seconds.
.TUESDAY...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
9 seconds and northeast 1 foot at 11 seconds.
.TUESDAY NIGHT...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 8 seconds. Scattered showers after midnight.
.WEDNESDAY...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 and northeast 4 feet at 9 seconds. Scattered showers in
the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Numerous showers, mainly in the morning.
.THURSDAY 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.
.FRIDAY...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet. Scattered showers.

$$

AMZ712-141915-
Coastal Waters of Northern Puerto Rico out 10 NM-
255 AM AST Mon Sep 14 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 5 to 10 knots, increasing to 15 to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 5 seconds and east 4 feet at 9 seconds. Scattered showers early
this morning, then isolated showers late this morning and afternoon.
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
after midnight. Gusts up to 25 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 3 feet at
9 seconds.
.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. Wave
Detail: East 3 feet at 9 seconds. Scattered showers in the
afternoon.
.TUESDAY NIGHT...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 6 seconds and east 3 feet at 9 seconds. Scattered
showers in the evening.
.WEDNESDAY...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 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 7 seconds. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Wave Detail: East 4 feet at 7 seconds.
.THURSDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Numerous
showers.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Scattered showers.
.FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.

$$

AMZ716-141915-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
255 AM AST Mon Sep 14 2026

.TODAY...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 9 seconds. Isolated showers.
.TONIGHT...East winds around 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 5 seconds and
northeast 1 foot at 9 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 3 feet. Wave Detail: East 3 feet at 5 seconds and northeast
1 foot at 9 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds
and northeast 1 foot at 9 seconds. Scattered showers.
.WEDNESDAY...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 9 seconds. Scattered showers in
the afternoon.
.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 3 feet at 5 seconds and northeast 1 foot at 9 seconds. Numerous
showers.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.THURSDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet.
.FRIDAY NIGHT...East winds around 10 knots. Seas around 3 feet.
Scattered showers.

$$

AMZ723-141915-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
255 AM AST Mon Sep 14 2026

.TODAY...East winds around 15 knots with gusts up to 20 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
5 seconds and northeast 1 foot at 9 seconds. Isolated showers this
morning.
.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 5 seconds and northeast 1 foot at 9 seconds.
.TUESDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
5 seconds and northeast 1 foot at 9 seconds.
.TUESDAY NIGHT...East winds around 15 knots with gusts up to
25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 5 seconds and northeast 1 foot at 9 seconds.
Scattered showers in the evening.
.WEDNESDAY...East winds around 15 knots with gusts up to 25 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 5 seconds and northeast 1 foot at 9 seconds. Numerous showers in
the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 6 seconds. Numerous showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Numerous showers, mainly in the morning.
.THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ726-141915-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
255 AM AST Mon Sep 14 2026

.TODAY...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. Isolated showers.
.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
6 seconds and east 1 foot at 9 seconds. Scattered showers.
.TUESDAY...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 8 seconds. Scattered showers in
the afternoon.
.TUESDAY NIGHT...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. Scattered showers in the evening, then
numerous showers after midnight.
.WEDNESDAY...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 5 seconds and northeast 1 foot at 8 seconds. Scattered showers in
the afternoon.
.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. Numerous showers.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.THURSDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
Scattered showers.

$$

AMZ733-141915-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
255 AM AST Mon Sep 14 2026

.TODAY...East winds around 15 knots with gusts up to 20 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
6 seconds and east 1 foot at 9 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
6 seconds and east 1 foot at 9 seconds. Scattered showers in the
evening.
.TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
6 seconds and east 1 foot at 9 seconds. Scattered showers.
.TUESDAY 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 6 seconds and northeast 1 foot at
9 seconds. Scattered showers.
.WEDNESDAY...East winds around 15 knots with gusts up to 25 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 6 seconds and northeast 1 foot at 9 seconds. Scattered showers in
the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 6 seconds. Numerous showers.
.THURSDAY...East winds 15 to 20 knots. Seas around 4 feet,
occasionally to 5 feet. Scattered showers in the morning, then
numerous showers in the afternoon.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas around 4 feet,
occasionally to 5 feet. Numerous showers.
.FRIDAY...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ735-141915-
Coastal Waters of Southern Puerto Rico out 10 NM-
255 AM AST Mon Sep 14 2026

.TODAY...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. Isolated showers this morning. Isolated 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
6 seconds.
.TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
6 seconds.
.TUESDAY NIGHT...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 in the evening.
.WEDNESDAY...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 6 seconds. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Numerous
showers, mainly in the morning.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

$$

AMZ741-141915-
Mona Passage Southward to 17N-
255 AM AST Mon Sep 14 2026

.TODAY...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
6 seconds and northeast 1 foot at 9 seconds. Isolated showers.
.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
6 seconds and north 1 foot at 9 seconds.
.TUESDAY...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 7 seconds. Scattered showers.
.TUESDAY NIGHT...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 and northeast 1 foot at 9 seconds. Numerous
showers, mainly in the evening.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
4 feet at 7 seconds.
.WEDNESDAY NIGHT...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.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.THURSDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.

$$

AMZ742-141915-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
255 AM AST Mon Sep 14 2026

.TODAY...East winds around 5 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 5 seconds and northeast 1 foot at 9 seconds.
Isolated showers this morning, then numerous showers with isolated
thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 5 seconds and northeast 1 foot at 9 seconds.
.TUESDAY...East winds 5 to 10 knots, diminishing to around 5 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
5 seconds and northeast 1 foot at 8 seconds. Numerous showers in the
afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 5 seconds and northeast 1 foot at
9 seconds. Scattered showers in the evening.
.WEDNESDAY...East winds 5 to 10 knots, becoming northeast with gusts
up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 5 seconds and northeast 1 foot at 9 seconds.
Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to
3 feet. Wave Detail: Northeast 2 feet at 7 seconds.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Numerous
showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-141915-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
255 AM AST Mon Sep 14 2026

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

Winds and seas higher in and near thunderstorms.

$$