National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZCA52 TJSJ 241927
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
327 PM AST Wed Apr 24 2024

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 Seas...Along with the occasional height
of the average highest 10 percent of the Seas.

AMZ700-250815-
327 PM AST Wed Apr 24 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A small northwesterly swell is expected to arrive later tonight into
Thursday. Showers and thunderstorms will continue to affect the
local waters for the next few days. Another surface trough will
strengthen the easterly winds from Thursday into Friday, before
becoming northeast on Saturday under the influence of a surface high
pressure moving off the eastern coast of the United States.

$$

AMZ711-250815-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 10 seconds, subsiding to 8 seconds. Isolated
showers.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 8 seconds, increasing to 10 seconds. Isolated
showers.

$$

AMZ712-250815-
Coastal Waters of Northern Puerto Rico out 10 NM-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 9 seconds,
increasing to 10 seconds. Isolated showers.
.SUNDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Isolated showers.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 8 seconds. Isolated showers.

$$

AMZ716-250815-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 11 seconds. Isolated showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.MONDAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 8 seconds. Isolated showers.

$$

AMZ723-250815-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 6 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.MONDAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 7 seconds, increasing to 10 seconds. Isolated showers.

$$

AMZ726-250815-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.

$$

AMZ733-250815-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Isolated
showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Isolated
showers and thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 7 seconds, increasing to 10 seconds. Scattered
showers.
.SUNDAY...Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Isolated showers.

$$

AMZ735-250815-
Coastal Waters of Southern Puerto Rico out 10 NM-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Numerous showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated showers.
.FRIDAY NIGHT...East winds 10 to 15 knots, becoming northeast
after midnight. Seas 1 to 3 feet. Dominant period 7 seconds.
Isolated showers.
.SATURDAY...East winds 10 to 15 knots, becoming northeast. Seas 1
to 3 feet. Dominant period 6 seconds. Scattered showers with
isolated thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Scattered showers with isolated
thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 1 to 3 feet. Dominant period 6 seconds. Isolated
showers.

$$

AMZ741-250815-
Mona Passage Southward to 17N-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Isolated showers and thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds, subsiding to 7 seconds. Isolated
thunderstorms through the day. Scattered showers.
.SUNDAY...Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 6 seconds. Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 7 seconds. Isolated showers.

$$

AMZ742-250815-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 11 seconds. Scattered showers with isolated thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers. Isolated thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY...East winds 10 to 15 knots, becoming northeast in the
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Numerous showers with isolated
thunderstorms.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
after midnight. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Scattered showers.
.SUNDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.

$$

AMZ745-250815-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
327 PM AST Wed Apr 24 2024

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 11 seconds. Isolated showers.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated thunderstorms in the
afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds, subsiding to 8 seconds. Scattered
showers with isolated thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots, increasing to northeast
10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.

$$