National Weather Service Marine Forecast FZCA52 TJSJ
FZCA52 TJSJ 260736
CWFSJU
Coastal Waters Forecast
National Weather Service San Juan PR
336 AM AST Thu Mar 26 2026
Puerto Rico and the U.S. Virgin Islands Waters
AMZ700-262015
336 AM AST Thu Mar 26 2026
SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS
A surface high pressure will develop over the north central Atlantic during the next few days, and settle over the Azores late in the weekend. Meanwhile, a series of weak surface troughs are expected to linger over the northeastern Caribbean through the end of the week, before another front moves over the local area early next week. This weather pattern will promote mostly light to moderate east to southeast trades through early Friday, before turning more east to northeast for the rest of the period. Stronger winds are expected with the approaching front. Seas will remain at 5 feet or less through the weekend. Marine conditions will gradually deteriorate early next week, as a large swell is forecast to build seas up to 10 feet and spread across the local Atlantic waters and passages for most of the workweek.
AMZ711-262015
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N
336 AM AST Thu Mar 26 2026
TODAY
East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 5 feet. Wave Detail: Northeast 5 feet at 11 seconds and east
3 feet at 4 seconds. Scattered showers.
TONIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and
southeast 3 feet at 6 seconds. Scattered showers.
FRIDAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 5 feet. Wave Detail: East 3 feet at 6 seconds and northeast
3 feet at 9 seconds. Scattered showers in the morning.
FRIDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas around 5 feet. Wave Detail: East
4 feet at 6 seconds and north 3 feet at 9 seconds. Scattered showers
in the evening.
SATURDAY
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 north
3 feet at 9 seconds. Scattered showers in the afternoon.
SATURDAY NIGHT
Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 4 to 5 feet. Wave Detail: East 3 feet at 6 seconds
and north 3 feet at 9 seconds.
SUNDAY
Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 4 to 5 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots. Seas around 5 feet.
Scattered showers.
MONDAY
Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 4 to 6 feet. Scattered showers.
MONDAY NIGHT
Northeast winds 15 to 20 knots. Seas 5 to 8 feet,
building to 7 to 10 feet after midnight. Scattered showers.
AMZ712-262015
Coastal Waters of Northern Puerto Rico out 10 NM
336 AM AST Thu Mar 26 2026
TODAY
East winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots this afternoon. Seas 4 to 5 feet. Wave Detail:
Northeast 4 feet at 11 seconds and northwest 1 foot at 11 seconds.
Numerous showers early this morning, then isolated showers late this
morning. Scattered showers with isolated thunderstorms this
afternoon.
TONIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas
4 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and north
2 feet at 11 seconds. Scattered showers.
FRIDAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and north
2 feet at 10 seconds. Scattered showers.
FRIDAY NIGHT
East 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
northeast 4 feet at 10 seconds. Scattered showers.
SATURDAY
East winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: Northeast 3 feet at 6 seconds and
north 3 feet at 9 seconds. Scattered showers.
SATURDAY NIGHT
East winds 10 to 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. Wave Detail: Northeast 3 feet at
7 seconds and north 3 feet at 9 seconds.
SUNDAY
Northeast winds 10 to 15 knots. Seas around 4 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet.
MONDAY
Northeast winds 10 to 15 knots. Seas 4 to 5 feet.
Scattered showers in the morning.
MONDAY NIGHT
Northeast winds 10 to 15 knots. Seas 5 to 6 feet,
building to 6 to 8 feet after midnight. Numerous showers.
Winds and seas higher in and near thunderstorms.
AMZ716-262015
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM
336 AM AST Thu Mar 26 2026
TODAY
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and
southeast 2 feet at 4 seconds. Scattered showers, mainly this
morning.
TONIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds and east
2 feet at 5 seconds. Scattered showers.
FRIDAY
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 5 feet. Wave Detail: Northeast 4 feet at 9 seconds and
southeast 2 feet at 5 seconds. Scattered showers.
FRIDAY NIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds and
northeast 4 feet at 9 seconds. Scattered showers.
SATURDAY
East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 6 seconds and northeast 3 feet at 9 seconds.
Scattered showers.
SATURDAY 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
and north 3 feet at 9 seconds.
SUNDAY
Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet.
MONDAY
Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers in the afternoon.
MONDAY NIGHT
Northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Scattered showers.
AMZ723-262015
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N
336 AM AST Thu Mar 26 2026
TODAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 5 feet. Wave Detail: East 4 feet at 6 seconds and northeast
3 feet at 10 seconds. Scattered showers early this morning, then
isolated showers late this morning and afternoon.
TONIGHT
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 northeast
3 feet at 10 seconds. Scattered showers in the evening.
FRIDAY
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
3 feet at 10 seconds.
FRIDAY NIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 3 feet at 9 seconds. Scattered showers.
SATURDAY
East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots in the afternoon. Seas around 4 feet.
Wave Detail: East 4 feet at 6 seconds and northeast 3 feet at
10 seconds. Scattered showers in the morning, then numerous showers
in the afternoon.
SATURDAY 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
and northeast 3 feet at 10 seconds. Scattered showers.
SUNDAY
Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
SUNDAY NIGHT
Northeast winds 10 to 15 knots. Seas around 4 feet.
Scattered showers.
MONDAY
Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
MONDAY NIGHT
Northeast winds around 15 knots. Seas 4 to 5 feet.
Scattered showers.
AMZ726-262015
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John
336 AM AST Thu Mar 26 2026
TODAY
East 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 10 seconds. Numerous showers early this morning, then
scattered showers late this morning and afternoon. Isolated
thunderstorms late.
TONIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast
1 foot at 10 seconds. Scattered showers.
FRIDAY
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds and northeast
1 foot at 10 seconds. Scattered showers.
FRIDAY NIGHT
East winds 15 to 20 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 10 seconds. Scattered showers.
SATURDAY
East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds and northeast 1 foot at 9 seconds.
Scattered showers.
SATURDAY 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
and northeast 2 feet at 9 seconds.
SUNDAY
Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 4 feet.
MONDAY
Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
Scattered showers in the afternoon.
MONDAY NIGHT
Northeast winds around 15 knots. Seas 2 to 4 feet.
Scattered showers.
Winds and seas higher in and near thunderstorms.
AMZ733-262015
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix
336 AM AST Thu Mar 26 2026
TODAY
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 11 seconds. Scattered showers until late afternoon, then
isolated showers late.
TONIGHT
East winds 10 to 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 11 seconds. Scattered showers in the evening.
FRIDAY
East winds 10 to 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 10 seconds. Scattered showers in the morning.
FRIDAY NIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas around 4 feet. Wave Detail: East 4 feet at 6 seconds and
northeast 1 foot at 10 seconds. Scattered showers.
SATURDAY
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 10 seconds. Scattered showers.
SATURDAY NIGHT
Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds
and northeast 1 foot at 10 seconds. Scattered showers.
SUNDAY
Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 4 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots. Seas 4 to 5 feet.
MONDAY
Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
MONDAY NIGHT
Northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Scattered showers.
AMZ735-262015
Coastal Waters of Southern Puerto Rico out 10 NM
336 AM AST Thu Mar 26 2026
TODAY
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. Isolated showers
this morning, then scattered showers this afternoon.
TONIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: East 3 feet at 6 seconds.
FRIDAY
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.
FRIDAY NIGHT
East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: East 3 feet at 6 seconds.
SATURDAY
East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. Scattered
showers in the afternoon.
SATURDAY NIGHT
Northeast winds 5 to 10 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
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.
MONDAY
Northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Scattered showers in
the afternoon.
MONDAY NIGHT
Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers.
AMZ741-262015
Mona Passage Southward to 17N
336 AM AST Thu Mar 26 2026
TODAY
East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds and
northeast 3 feet at 9 seconds. Scattered showers early this morning,
then isolated showers late this morning and afternoon.
TONIGHT
East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and
northeast 3 feet at 10 seconds. Scattered showers in the evening.
FRIDAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds and
northeast 3 feet at 10 seconds.
FRIDAY NIGHT
East winds 10 to 15 knots with gusts up to 25 knots.
Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds and
northeast 2 feet at 9 seconds. Numerous showers, mainly in the
evening.
SATURDAY
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 north
3 feet at 9 seconds. Scattered showers in the morning.
SATURDAY NIGHT
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 3 feet at 9 seconds. Scattered showers.
SUNDAY
Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Scattered showers.
MONDAY
Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
MONDAY NIGHT
Northeast winds 15 to 20 knots. Seas 5 to 7 feet.
Scattered showers.
AMZ742-262015
Coastal Waters of Northwestern Puerto Rico out 10 NM
336 AM AST Thu Mar 26 2026
TODAY
East winds around 5 knots. Seas 2 to 4 feet. Wave Detail:
Northeast 3 feet at 9 seconds. Scattered showers with isolated
thunderstorms early this afternoon. Numerous showers with isolated
thunderstorms late.
TONIGHT
East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail:
Northeast 3 feet at 10 seconds and north 2 feet at 11 seconds.
Scattered showers.
FRIDAY
Northeast winds 5 to 10 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 3 feet at 10 seconds and north 2 feet at
11 seconds. Scattered showers in the afternoon.
FRIDAY NIGHT
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 and
northeast 3 feet at 9 seconds. Scattered showers in the evening.
SATURDAY
East winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: East
3 feet at 6 seconds and north 3 feet at 9 seconds.
SATURDAY NIGHT
Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 4 feet. Wave Detail: North 4 feet at 9 seconds
and east 3 feet at 6 seconds.
SUNDAY
Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet.
SUNDAY NIGHT
Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet.
MONDAY
Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet. Scattered showers in
the morning.
MONDAY NIGHT
Northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Scattered showers.
Winds and seas higher in and near thunderstorms.
AMZ745-262015
Coastal Waters of Southwestern Puerto Rico out 10 NM
336 AM AST Thu Mar 26 2026
TODAY
East winds 5 to 10 knots, becoming southeast 10 to 15 knots
with gusts up to 20 knots early this afternoon, then diminishing to
5 to 10 knots late. Seas around 2 feet. Wave Detail: Southeast
2 feet at 6 seconds and north 1 foot at 7 seconds. Isolated showers
early this afternoon. Scattered showers late.
TONIGHT
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds and north 1 foot at 8 seconds.
Scattered showers in the evening.
FRIDAY
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds and northwest 2 feet at 11 seconds.
Showers in the afternoon.
FRIDAY NIGHT
East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds and northwest 2 feet at 9 seconds.
Scattered showers.
SATURDAY
East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds and northwest 2 feet at 8 seconds.
Scattered showers in the afternoon.
SATURDAY NIGHT
Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds and north 2 feet at 8 seconds.
SUNDAY
Northeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Scattered showers in
the afternoon.
SUNDAY NIGHT
Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 2 to 4 feet.
MONDAY
Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Scattered showers in the afternoon.
MONDAY NIGHT
Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
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