(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/21/2026 3:42 AM America/Puerto_Rico.
Valid through 7/21/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 210742
cwfsju
expires:202607212015;;336891
coastal waters forecast
national weather service san juan pr
342 am ast tue jul 21 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.
amz712-212015-
coastal waters of northern puerto rico out 10 nm-
342 am ast tue jul 21 2026
.today...northeast winds 5 to 10 knots, increasing to 10 to 15 knots
late this morning and afternoon. seas around 3 feet. wave detail:
northeast 3 feet at 7 seconds. numerous showers with isolated
thunderstorms this morning, then scattered showers early this
afternoon. isolated showers late.
.tonight...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. seas around 3 feet.
wave detail: northeast 3 feet at 7 seconds. scattered showers.
.wednesday...east winds 10 to 15 knots with gusts up to 25 knots.
seas around 3 feet. wave detail: northeast 3 feet at 7 seconds.
scattered showers in the afternoon.
.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:
northeast 4 feet at 7 seconds.
.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 10 to 15 knots, diminishing to 5 to
10 knots after midnight. gusts up to 25 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: northeast 4 feet at 7 seconds.
.friday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
.friday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
.saturday...east winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. seas 4 to 5 feet, occasionally to 6 feet.
.saturday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 6 feet, occasionally to 8 feet.
winds and seas higher in and near thunderstorms.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/21/2026 3:42 AM America/Puerto_Rico.
Valid through 7/21/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 210742
cwfsju
expires:202607212015;;336896
coastal waters forecast
national weather service san juan pr
342 am ast tue jul 21 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.
amz735-212015-
coastal waters of southern puerto rico out 10 nm-
342 am ast tue jul 21 2026
.today...northeast winds 5 to 10 knots with gusts up to 20 knots,
becoming southeast 10 to 15 knots with gusts up to 25 knots this
afternoon. seas 2 to 3 feet. wave detail: east 3 feet at 7 seconds.
isolated showers and thunderstorms this morning, then scattered
showers this afternoon. isolated thunderstorms late.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight. seas 2 to 3 feet. wave
detail: east 3 feet at 6 seconds. scattered showers in the evening.
.wednesday...east winds 10 to 15 knots with gusts up to 20 knots.
seas 2 to 3 feet. wave detail: southeast 2 feet at 5 seconds.
scattered showers in the morning.
.wednesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: east 3 feet at 5 seconds.
scattered showers.
.thursday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: southeast
3 feet at 5 seconds.
.thursday night...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 6 seconds.
.friday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
.friday night...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.saturday...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.saturday night...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet.
winds and seas higher in and near thunderstorms.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/21/2026 3:42 AM America/Puerto_Rico.
Valid through 7/21/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 210742
cwfsju
expires:202607212015;;336897
coastal waters forecast
national weather service san juan pr
342 am ast tue jul 21 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.
amz741-212015-
mona passage southward to 17n-
342 am ast tue jul 21 2026
.today...northeast 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 and north 2 feet at 4 seconds. isolated showers.
.tonight...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 6 seconds. scattered showers after midnight.
.wednesday...southeast 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 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 6 seconds.
.thursday...southeast 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.
.thursday 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 4 feet at 6 seconds.
.friday...east winds 10 to 15 knots. seas 4 to 5 feet, occasionally
to 6 feet.
.friday night...east winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
.saturday...east winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. seas 4 to 5 feet, occasionally to 6 feet.
.saturday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/21/2026 3:42 AM America/Puerto_Rico.
Valid through 7/21/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 210742
cwfsju
expires:202607212015;;336898
coastal waters forecast
national weather service san juan pr
342 am ast tue jul 21 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.
amz742-212015-
coastal waters of northwestern puerto rico out 10 nm-
342 am ast tue jul 21 2026
.today...northeast winds 10 to 15 knots with gusts up to 25 knots.
seas 2 to 3 feet. wave detail: east 3 feet at 6 seconds. isolated
showers this morning, then scattered showers early this afternoon.
isolated showers late.
.tonight...east winds 10 to 15 knots with gusts up to 20 knots. seas
2 to 3 feet. wave detail: east 2 feet at 5 seconds.
.wednesday...southeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 5 seconds and south 1 foot at 5 seconds.
numerous showers in the afternoon.
.wednesday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 6 seconds and south 1 foot at 4 seconds.
.thursday...east winds around 5 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 7 seconds and south 1 foot at 5 seconds.
numerous showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: south 2 feet at 6 seconds and northeast 2 feet at 7 seconds.
.friday...east winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. seas 2 to 3 feet. scattered showers in
the afternoon.
.friday night...east winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet.
.saturday...northeast winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet. numerous showers in the afternoon.
.saturday night...east winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/21/2026 3:42 AM America/Puerto_Rico.
Valid through 7/21/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 210742
cwfsju
expires:202607212015;;336899
coastal waters forecast
national weather service san juan pr
342 am ast tue jul 21 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.
amz745-212015-
coastal waters of southwestern puerto rico out 10 nm-
342 am ast tue jul 21 2026
.today...northeast winds 5 to 10 knots. seas around 2 feet. wave
detail: northeast 1 foot at 5 seconds. scattered showers this
afternoon.
.tonight...east winds 5 to 10 knots. seas around 2 feet. wave
detail: southwest 1 foot at 5 seconds. scattered showers in the
evening.
.wednesday...southeast winds 10 to 15 knots with gusts up to
20 knots. seas around 2 feet. wave detail: southeast 2 feet at
5 seconds.
.wednesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas around 2 feet. wave detail: southeast 2 feet at
4 seconds.
.thursday...southeast winds 10 to 15 knots with gusts up to
25 knots. seas 2 to 3 feet. wave detail: southeast 2 feet at
5 seconds.
.thursday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: southeast 3 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. scattered showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 2 to 3 feet.
.saturday...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.
.saturday night...east winds 5 to 10 knots. seas 2 to 3 feet.
$$
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