National Weather Service Marine Forecast FZCA52 TJSJ
FZCA52 TJSJ 200724
CWFSJU
Coastal Waters Forecast
National Weather Service San Juan PR
324 AM AST Sat Jun 20 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.
AMZ700-202015
324 AM AST Sat Jun 20 2026
Synopsis for Puerto Rico and the U.S. Virgin Islands Waters
.
A broad surface high pressure building over the Central Atlantic
will continue to promote moderate to locally fresh easterly to east
southeasterly winds over the next several days. These conditions
will create choppy seas across local waters and Caribbean passages;
small craft should exercise caution. Meanwhile up to moderate and
high concentrations of Saharan Dust will persist throughout the
weekend and into the workweek, resulting in hazy skies, reduced
visibility, and poor air quality. A tropical wave will move across
the Caribbean Sea Sunday into Monday, increasing the likelihood of
showers and isolated t-storms across the regional waters.
AMZ711-202015
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N
324 AM AST Sat Jun 20 2026
TODAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds and northeast 1 foot at 12 seconds. Isolated showers.
TONIGHT
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 and northeast 1 foot at 11 seconds. Scattered showers
after midnight.
SUNDAY
East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
6 seconds and northeast 1 foot at 11 seconds. Scattered showers.
SUNDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 6 seconds and northeast 1 foot at 10 seconds.
MONDAY
East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
6 seconds and northeast 1 foot at 10 seconds.
MONDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 7 seconds and northeast 1 foot at 10 seconds.
TUESDAY
East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet.
WEDNESDAY
East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
Numerous showers in the afternoon.
WEDNESDAY NIGHT
East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
AMZ712-202015
Coastal Waters of Northern Puerto Rico out 10 NM
324 AM AST Sat Jun 20 2026
SMALL CRAFT SHOULD EXERCISE CAUTION
TODAY
East winds 10 to 15 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots this
afternoon. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 6 seconds and northeast 1 foot at 11 seconds.
Isolated showers.
TONIGHT
East winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots after
midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
East 4 feet at 6 seconds and northeast 1 foot at 11 seconds.
Scattered showers after midnight.
SUNDAY
East winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. Gusts up to 30 knots. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: East 5 feet at 6 seconds and northeast
1 foot at 11 seconds. Numerous showers, mainly in the morning.
SUNDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Gusts up to 30 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds and
northeast 1 foot at 11 seconds. Scattered showers in the evening.
MONDAY
East winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: East 5 feet at 6 seconds and northeast 1 foot at 10 seconds.
MONDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 6 seconds and northeast 1 foot at 10 seconds.
TUESDAY
East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
TUESDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.
WEDNESDAY
East winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
Scattered showers in the morning.
WEDNESDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
AMZ716-202015
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM
324 AM AST Sat Jun 20 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 4 feet at
6 seconds and northeast 1 foot at 11 seconds. Isolated showers.
TONIGHT
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 and north 1 foot at 11 seconds. Numerous showers after
midnight.
SUNDAY
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 northeast 1 foot at 11 seconds. Scattered showers.
SUNDAY 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 northeast 1 foot at 11 seconds.
MONDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
5 seconds and northeast 1 foot at 10 seconds.
MONDAY 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 north 1 foot at 10 seconds.
TUESDAY
East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally
to 5 feet. Scattered showers in the morning.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
WEDNESDAY
East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers in the morning.
WEDNESDAY NIGHT
East winds around 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
AMZ723-202015
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N
324 AM AST Sat Jun 20 2026
SMALL CRAFT SHOULD EXERCISE CAUTION
TODAY
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
6 seconds and northeast 1 foot at 12 seconds. Isolated showers late.
TONIGHT
East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
6 seconds and northeast 1 foot at 11 seconds. Scattered showers.
SUNDAY
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
6 seconds and northeast 1 foot at 11 seconds.
SUNDAY 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 6 seconds and northeast 1 foot at 11 seconds.
MONDAY
East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
6 seconds and northeast 1 foot at 10 seconds.
MONDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet
at 6 seconds and northeast 1 foot at 10 seconds.
TUESDAY
East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas around 5 feet,
occasionally to 6 feet.
WEDNESDAY
East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
WEDNESDAY NIGHT
East winds 15 to 20 knots. Seas around 4 feet,
occasionally to 5 feet.
AMZ726-202015
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John
324 AM AST Sat Jun 20 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 4 feet at
6 seconds.
TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
6 seconds. Numerous showers after midnight.
SUNDAY
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
6 seconds. Scattered showers.
SUNDAY 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 6 seconds. Scattered showers after midnight.
MONDAY
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
6 seconds.
MONDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 6 seconds.
TUESDAY
East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Scattered showers in the afternoon.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
WEDNESDAY
East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers in the morning.
WEDNESDAY NIGHT
East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet.
AMZ733-202015
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix
324 AM AST Sat Jun 20 2026
TODAY
East winds around 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
6 seconds. Isolated showers.
TONIGHT
East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds. Scattered showers in the evening, then numerous showers
after midnight.
SUNDAY
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. Numerous showers in the morning.
SUNDAY 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. Scattered showers.
MONDAY
East winds 15 to 20 knots with gusts up to 30 knots. Seas
5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
7 seconds.
MONDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 7 seconds.
TUESDAY
East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally
to 8 feet.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Scattered showers.
WEDNESDAY
East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers in the morning.
WEDNESDAY NIGHT
East winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet.
AMZ735-202015
Coastal Waters of Southern Puerto Rico out 10 NM
324 AM AST Sat Jun 20 2026
TODAY
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.
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. Numerous showers after midnight.
SUNDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
7 seconds. Numerous showers in the morning.
SUNDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet
at 7 seconds.
MONDAY
East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds.
MONDAY 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.
TUESDAY
East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally
to 6 feet.
TUESDAY NIGHT
East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
WEDNESDAY
East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet.
WEDNESDAY NIGHT
East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
AMZ741-202015
Mona Passage Southward to 17N
324 AM AST Sat Jun 20 2026
TODAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds and northeast 1 foot at 10 seconds. Isolated showers until
late afternoon, then numerous showers late.
TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds and northeast 1 foot at 11 seconds. Scattered showers
after midnight.
SUNDAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
7 seconds and northeast 1 foot at 11 seconds. Scattered showers.
SUNDAY NIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 7 seconds and northeast 1 foot at 11 seconds. Scattered showers.
MONDAY
East winds 15 to 20 knots with gusts up to 30 knots. Seas
4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at
7 seconds and northeast 1 foot at 10 seconds. Scattered showers in
the afternoon.
MONDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet
at 7 seconds and northeast 1 foot at 10 seconds.
TUESDAY
East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
WEDNESDAY
East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet.
WEDNESDAY NIGHT
East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet.
AMZ742-202015
Coastal Waters of Northwestern Puerto Rico out 10 NM
324 AM AST Sat Jun 20 2026
TODAY
Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 7 seconds and northeast 1 foot at
10 seconds. Scattered showers early this afternoon. Numerous showers
late.
TONIGHT
East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet. Wave Detail: Northeast 3 feet at 6 seconds and
northeast 1 foot at 11 seconds.
SUNDAY
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds.
Numerous showers in the afternoon.
SUNDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 6 seconds and
northeast 1 foot at 11 seconds. Numerous showers in the evening.
MONDAY
East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 25 knots in the afternoon. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 7 seconds and northeast 1 foot at 10 seconds.
Scattered showers in the afternoon.
MONDAY NIGHT
East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 7 seconds and northeast 1 foot at 10 seconds.
TUESDAY
East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Numerous
showers in the afternoon.
TUESDAY NIGHT
East winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
WEDNESDAY
East winds 10 to 15 knots, becoming northeast 5 to
10 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
Scattered showers in the afternoon.
WEDNESDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet.
AMZ745-202015
Coastal Waters of Southwestern Puerto Rico out 10 NM
324 AM AST Sat Jun 20 2026
TODAY
East winds 5 to 10 knots, becoming southeast 10 to 15 knots
with gusts up to 20 knots this afternoon. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 7 seconds. Isolated showers early this
afternoon. Numerous showers late.
TONIGHT
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. Wave
Detail: Southeast 2 feet at 6 seconds.
SUNDAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Scattered
showers in the afternoon.
SUNDAY NIGHT
East winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots after
midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Southeast 3 feet at 5 seconds. Scattered showers in the evening.
MONDAY
East winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
Wave Detail: East 3 feet at 5 seconds.
MONDAY NIGHT
East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds.
TUESDAY
East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Scattered showers in
the afternoon.
TUESDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet.
WEDNESDAY
East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
WEDNESDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 3 feet.
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