Coastal Waters Forecast
Issued by NWS San Juan, PR

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
739
FZCA52 TJSJ 182011
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
411 PM AST Tue Jun 18 2024

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-190915-
411 PM AST Tue Jun 18 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Surface high pressure over the Atlantic and a tropical wave crossing
the region will promote light east to southeast winds today, then
becoming more easterly and increasing to moderate to locally fresh by
Wednesday and through the rest of the week. Passing showers and
isolated thunderstorms accompanying and trailing the tropical wave
will continue to affect the coastal waters and local passages
resulting in localized hazardous marine conditions.

$$

AMZ711-190915-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 3 feet at 8 seconds and
southeast 2 feet at 4 seconds. Scattered showers with isolated
thunderstorms early this morning, then isolated showers late this
morning and afternoon. Isolated thunderstorms late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
8 seconds and southeast 2 feet at 3 seconds. Scattered showers.
.WEDNESDAY...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 4 seconds and east 3 feet at 8 seconds. Scattered showers in the
morning.
.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 4 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds around 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
4 feet at 7 seconds. Scattered showers in the morning.
.THURSDAY 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.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-190915-
Coastal Waters of Northern Puerto Rico out 10 NM-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds around 5 knots, becoming east this
afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at
8 seconds. Scattered showers with isolated thunderstorms this
morning, then showers and scattered thunderstorms this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 8 seconds. Scattered showers in the
evening.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 2 to
3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at
5 seconds and northeast 2 feet at 8 seconds. Numerous showers,
mainly in the morning.
.WEDNESDAY 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 5 seconds and northeast 2 feet at 8 seconds.
Scattered showers.
.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. Wave
Detail: Northeast 4 feet at 7 seconds.
.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.
Wave Detail: Northeast 4 feet at 7 seconds.
.FRIDAY...East winds 10 to 15 knots. 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.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Seas around 3 feet, occasionally to 4 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 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-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 3 seconds and northeast 2 feet at
8 seconds. Scattered showers. Isolated thunderstorms early this
morning. Isolated thunderstorms late.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and
northeast 2 feet at 8 seconds. Scattered showers.
.WEDNESDAY...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 4 seconds and northeast 2 feet at 8 seconds. Numerous
showers in the morning.
.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 8 seconds.
Scattered showers.
.THURSDAY...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. Scattered showers.
.THURSDAY NIGHT...East winds 15 to 20 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.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SATURDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-190915-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds and northeast 2 feet at
8 seconds. Scattered showers. Isolated thunderstorms early this
morning. Isolated thunderstorms late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet
at 5 seconds and northeast 2 feet at 8 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: Southeast
4 feet at 5 seconds and east 2 feet at 8 seconds. Numerous showers
in the morning.
.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. Scattered showers.
.THURSDAY...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. Scattered showers in the morning.
.THURSDAY 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. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.SATURDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 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-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds and east 1 foot at 8 seconds.
Scattered showers. Isolated thunderstorms this morning. Isolated
thunderstorms late.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and
east 2 feet at 8 seconds. Scattered showers.
.WEDNESDAY...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 4 seconds and east 2 feet at 8 seconds. Numerous showers.
.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 5 seconds and east 2 feet at 8 seconds. Scattered
showers.
.THURSDAY...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. Scattered showers.
.THURSDAY 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. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the morning.
.SATURDAY 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.

$$

AMZ733-190915-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet this afternoon. Wave Detail: Southeast 1 foot at
5 seconds and east 1 foot at 8 seconds, becoming southeast 2 feet at
4 seconds and east 1 foot at 8 seconds. Scattered showers. Isolated
thunderstorms early this morning. Isolated thunderstorms late.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
1 foot at 8 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast
3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers
in the morning.
.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 4 feet at 7 seconds. Scattered showers.
.THURSDAY...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. Scattered showers in the morning.
.THURSDAY 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 6 seconds. Scattered showers after midnight.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers in the morning.
.SATURDAY 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.

$$

AMZ735-190915-
Coastal Waters of Southern Puerto Rico out 10 NM-
411 PM AST Tue Jun 18 2024

.TODAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail:
Southeast 1 foot at 6 seconds. Scattered showers this morning.
Isolated thunderstorms. Isolated showers this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet after midnight. Wave Detail: East 1 foot at 6 seconds,
becoming southeast 2 feet at 4 seconds and east 1 foot at 8 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: Southeast
2 feet at 4 seconds and east 1 foot at 8 seconds. Numerous showers
in the morning.
.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 7 seconds.
.THURSDAY...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. Scattered showers in the morning.
.THURSDAY 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.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally
to 5 feet.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-190915-
Mona Passage Southward to 17N-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 7 seconds. Scattered showers with isolated
thunderstorms early this morning, then isolated showers late this
morning and afternoon.
.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots after midnight. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 1 foot at 8 seconds.
Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast
3 feet at 5 seconds and east 1 foot at 8 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: Southeast 4 feet at 5 seconds and east 1 foot at
8 seconds. Scattered showers in the evening.
.THURSDAY...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.
.THURSDAY 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.
.FRIDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-190915-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
411 PM AST Tue Jun 18 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 6 seconds and northeast 1 foot at 7 seconds.
Scattered showers early this afternoon. Isolated thunderstorms this
afternoon. Numerous showers late.
.TONIGHT...East winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds and northeast 1 foot at
8 seconds.
.WEDNESDAY...East winds around 5 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds and northeast 1 foot at 8 seconds.
Numerous showers in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: South 1 foot at 4 seconds and
northeast 1 foot at 8 seconds. Scattered showers in the evening.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Gusts up to 25 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 2 feet at 7 seconds.
Numerous showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 7 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered 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.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-190915-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
411 PM AST Tue Jun 18 2024

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

Winds and seas higher in and near thunderstorms.

$$