955
FZCA52 TJSJ 182007
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
407 PM AST Tue Nov 18 2025

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-190915-
407 PM AST Tue Nov 18 2025

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface trough will continue to bring showers and isolated
thunderstorms across the local waters and passages tonight into
Wednesday morning, likely generating localized hazardous conditions
for small craft. Moderate easterly winds will persist through
Wednesday night before shifting to the northeast as a surface trough
moves east of the Leeward Islands. Pulses of a north-northeasterly
swell will continue to spread across the Atlantic waters and local
passages through Wednesday.

$$

AMZ711-190915-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas around 5 feet. Wave Detail: East 4 feet at 5 seconds and north
2 feet at 9 seconds. Scattered showers early this evening, then
isolated showers late this evening and overnight.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas around 5 feet. Wave Detail: East 4 feet at 5 seconds and north
2 feet at 9 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 5 feet. Wave Detail: East 4 feet at 5 seconds
and north 3 feet at 11 seconds. Scattered showers after midnight.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 5 feet. Wave Detail: East 4 feet at 5 seconds
and north 3 feet at 11 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: East 3 feet at 5 seconds
and north 3 feet at 10 seconds.
.FRIDAY...Northeast winds 10 to 15 knots. Seas around 4 feet. Wave
Detail: Northeast 3 feet at 5 seconds and north 2 feet at 9 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet.
.SATURDAY...Northeast winds around 10 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
3 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 3 feet.

$$

AMZ712-190915-
Coastal Waters of Northern Puerto Rico out 10 NM-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and north
2 feet at 9 seconds. Isolated thunderstorms until early morning.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at 5 seconds and
north 2 feet at 9 seconds. Scattered showers in the morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at
5 seconds and north 3 feet at 11 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and
north 3 feet at 11 seconds.
.THURSDAY NIGHT...East winds around 10 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 3 feet at
5 seconds and north 3 feet at 10 seconds. Scattered showers.
.FRIDAY...Northeast winds around 10 knots. Seas around 4 feet. Wave
Detail: Northeast 3 feet at 5 seconds and north 2 feet at
10 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet.
.SATURDAY...East winds 5 to 10 knots. Seas around 3 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 3 feet. Scattered showers.
.SUNDAY...East winds 5 to 10 knots. Seas around 3 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-190915-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds around 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: East 3 feet at 4 seconds and north
3 feet at 9 seconds. Isolated showers this evening, then scattered
showers with isolated thunderstorms after midnight. Isolated showers
late.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds and north
2 feet at 10 seconds.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Wave Detail: East 3 feet at 5 seconds
and northwest 3 feet at 10 seconds. Scattered showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: Northeast 3 feet at 5 seconds and north 3 feet at
11 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at
5 seconds and northwest 3 feet at 11 seconds.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 4 seconds and north 3 feet at
10 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet.
.SATURDAY...East winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
3 feet. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-190915-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
407 PM AST Tue Nov 18 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
around 5 feet. Wave Detail: East 4 feet at 5 seconds and northeast
2 feet at 14 seconds. Isolated thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 2 feet at 14 seconds. Scattered showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 4 feet. Wave Detail: East 4 feet at 5 seconds
and northeast 2 feet at 13 seconds.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 4 feet. Wave Detail: Northeast 3 feet at
5 seconds and northeast 2 feet at 13 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at
5 seconds and northeast 2 feet at 13 seconds.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 5 seconds and northeast 2 feet at
12 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 3 feet.
.SATURDAY...East winds 10 to 15 knots. Seas around 3 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
3 feet.
.SUNDAY...East winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-190915-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and northeast
1 foot at 11 seconds. Isolated thunderstorms until early morning.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and
northeast 1 foot at 13 seconds. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds.
Scattered showers.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at
5 seconds.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 3 feet at 5 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet.
.SATURDAY...Northeast winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-190915-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds around 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds and
northeast 1 foot at 11 seconds. Isolated thunderstorms.
.WEDNESDAY...East winds around 15 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 1 foot at 12 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds
and northeast 1 foot at 13 seconds. Scattered showers in the
evening.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds
and northeast 1 foot at 13 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 5 seconds
and northeast 1 foot at 12 seconds.
.FRIDAY...Northeast 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 12 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
3 feet.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-190915-
Coastal Waters of Southern Puerto Rico out 10 NM-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots
after midnight, then increasing to 10 to 15 knots late. Seas 2 to
3 feet. Wave Detail: East 3 feet at 5 seconds. Isolated showers
early this evening, then scattered showers with isolated
thunderstorms late this evening and overnight.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: East 3 feet at 6 seconds. Scattered
showers in the morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East
3 feet at 6 seconds. Scattered showers after midnight.
.THURSDAY...Northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East
3 feet at 6 seconds. Scattered showers in the afternoon.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. Scattered showers in the
evening.
.FRIDAY...East winds 5 to 10 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: East 2 feet at 6 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to
3 feet.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-190915-
Mona Passage Southward to 17N-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet. Wave Detail: East 4 feet at 6 seconds and north 2 feet
at 9 seconds. Scattered showers with isolated thunderstorms.
.WEDNESDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: East
4 feet at 6 seconds and north 2 feet at 9 seconds. Scattered
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds
and north 2 feet at 10 seconds. Scattered showers in the evening.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds
and north 2 feet at 11 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at
6 seconds and north 2 feet at 11 seconds. Scattered showers in the
evening.
.FRIDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet. Wave Detail: Northeast 3 feet at 6 seconds and
north 2 feet at 10 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SUNDAY...Northeast winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-190915-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
407 PM AST Tue Nov 18 2025

.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
late this evening and overnight. Seas 2 to 4 feet. Wave Detail:
Northeast 3 feet at 5 seconds and north 3 feet at 9 seconds.
Scattered showers early this evening, then isolated showers late
this evening and overnight.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds and
north 2 feet at 10 seconds. Scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at
5 seconds and north 2 feet at 9 seconds.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at
5 seconds and north 3 feet at 10 seconds.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at
5 seconds and north 3 feet at 11 seconds.
.FRIDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 5 seconds and
north 2 feet at 10 seconds.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet.
.SATURDAY...Northeast winds around 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY...East winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.

$$

AMZ745-190915-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
407 PM AST Tue Nov 18 2025

.TONIGHT...Northeast winds 5 to 10 knots, becoming east late this
evening and overnight. Seas 2 to 3 feet. Wave Detail: North 2 feet
at 10 seconds and southeast 1 foot at 5 seconds.
.WEDNESDAY...East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: North 2 feet at 9 seconds and southeast 1 foot at 5 seconds.
Numerous showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds and northwest 2 feet at
8 seconds. Scattered showers in the evening.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds and northwest 2 feet at 9 seconds.
Scattered showers in the afternoon.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 10 seconds
and east 2 feet at 6 seconds. Scattered showers in the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 5 seconds and north 2 feet at 9 seconds.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet.

$$