(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/13/2026 3:50 AM America/Puerto_Rico.
Valid through 8/13/2026 6:00 PM America/Puerto_Rico.
fzca52 tjsj 130750
cwfsju
expires:202608132200;;104603
coastal waters forecast
national weather service san juan pr
350 am ast thu aug 13 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.
amz712-132200-
coastal waters of northern puerto rico out 10 nm-
350 am ast thu aug 13 2026
...small craft should exercise caution...
.today...east winds 10 to 15 knots, increasing to 15 to 20 knots
late this morning and afternoon. gusts up to 30 knots. seas 4 to
5 feet, occasionally to 6 feet. wave detail: east 5 feet at
7 seconds. isolated showers until late afternoon.
.tonight...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.
.friday...east winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. seas 5 to 7 feet, occasionally to 9 feet. wave
detail: east 6 feet at 7 seconds and northeast 1 foot at 12 seconds.
.friday 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 8 seconds and northeast 1 foot at 12 seconds.
.saturday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 6 to 7 feet, occasionally to 9 feet. wave detail: northeast
6 feet at 7 seconds and northeast 1 foot at 12 seconds.
.saturday night...east winds 15 to 20 knots with gusts up to
30 knots. seas 6 to 7 feet, occasionally to 9 feet. wave detail:
northeast 6 feet at 7 seconds and northeast 1 foot at 12 seconds.
.sunday...east winds 20 to 25 knots. seas around 6 feet,
occasionally to 8 feet. scattered showers in the afternoon.
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 6 to 7 feet, occasionally to 9 feet.
scattered showers.
.monday...east winds 10 to 15 knots. seas 6 to 7 feet, occasionally
to 9 feet, subsiding to 5 feet, occasionally to 6 feet in the
afternoon. scattered showers in the morning, then numerous showers
in the afternoon.
.monday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
numerous showers.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/13/2026 3:50 AM America/Puerto_Rico.
Valid through 8/13/2026 6:00 PM America/Puerto_Rico.
fzca52 tjsj 130750
cwfsju
expires:202608132200;;104608
coastal waters forecast
national weather service san juan pr
350 am ast thu aug 13 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.
amz735-132200-
coastal waters of southern puerto rico out 10 nm-
350 am ast thu aug 13 2026
...small craft should exercise caution...
.today...east winds 15 to 20 knots with gusts up to 30 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: southeast 5 feet
at 6 seconds. isolated showers this morning.
.tonight...east winds 15 to 20 knots with gusts up to 30 knots. seas
4 to 6 feet, occasionally to 8 feet. wave detail: southeast 5 feet
at 7 seconds.
.friday...east winds 15 to 20 knots with gusts up to 30 knots. seas
5 to 7 feet, occasionally to 9 feet. wave detail: southeast 5 feet
at 7 seconds.
.friday 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 4 feet
at 7 seconds.
.saturday...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 7 seconds.
.saturday night...northeast winds 15 to 20 knots with gusts up to
35 knots. seas 4 to 6 feet, occasionally to 8 feet. wave detail:
east 5 feet at 7 seconds.
.sunday...east winds 20 to 25 knots, diminishing to 15 to 20 knots
in the afternoon. seas 4 to 6 feet, occasionally to 8 feet.
scattered showers in the afternoon.
.sunday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers.
.monday...east winds 15 to 20 knots. seas 4 to 6 feet, occasionally
to 8 feet. numerous showers.
.monday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet. scattered showers.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/13/2026 3:50 AM America/Puerto_Rico.
Valid through 8/13/2026 6:00 PM America/Puerto_Rico.
fzca52 tjsj 130750
cwfsju
expires:202608132200;;104609
coastal waters forecast
national weather service san juan pr
350 am ast thu aug 13 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.
amz741-132200-
mona passage southward to 17n-
350 am ast thu aug 13 2026
...small craft should exercise caution...
...small craft advisory in effect from this evening through sunday
afternoon...
.today...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
6 seconds. scattered showers, mainly this morning.
.tonight...east winds 15 to 20 knots with gusts up to 30 knots. seas
5 to 7 feet, occasionally to 9 feet. wave detail: east 7 feet at
7 seconds.
.friday...east winds 20 to 25 knots, diminishing to 15 to 20 knots
in the afternoon. seas 6 to 9 feet, occasionally to 11 feet. wave
detail: east 7 feet at 7 seconds.
.friday night...east winds 15 to 20 knots with gusts up to 30 knots.
seas 6 to 8 feet, occasionally to 10 feet. wave detail: east 7 feet
at 8 seconds.
.saturday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 5 to 8 feet, occasionally to 10 feet. wave detail: northeast
6 feet at 7 seconds.
.saturday night...northeast winds 15 to 20 knots with gusts up to
30 knots. seas 6 to 7 feet, occasionally to 9 feet. wave detail:
northeast 6 feet at 7 seconds and northeast 1 foot at 12 seconds.
.sunday...east winds 20 to 25 knots. seas 5 to 7 feet, occasionally
to 9 feet. scattered showers in the afternoon.
.sunday night...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet. scattered showers.
.monday...east winds 15 to 20 knots. seas 5 to 6 feet, occasionally
to 8 feet. numerous showers, mainly in the morning.
.monday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
scattered showers.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/13/2026 3:50 AM America/Puerto_Rico.
Valid through 8/13/2026 6:00 PM America/Puerto_Rico.
fzca52 tjsj 130750
cwfsju
expires:202608132200;;104610
coastal waters forecast
national weather service san juan pr
350 am ast thu aug 13 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.
amz742-132200-
coastal waters of northwestern puerto rico out 10 nm-
350 am ast thu aug 13 2026
.today...east winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 25 knots this afternoon. seas 2 to 3 feet. wave detail:
northeast 2 feet at 7 seconds and south 1 foot at 5 seconds.
scattered showers early this afternoon.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
2 to 4 feet, occasionally to 5 feet. wave detail: northeast 3 feet
at 7 seconds and south 2 feet at 5 seconds.
.friday...east winds 10 to 15 knots with gusts up to 20 knots,
becoming northeast 15 to 20 knots with gusts up to 30 knots in the
afternoon. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
northeast 3 feet at 7 seconds and south 1 foot at 5 seconds.
scattered showers in the afternoon.
.friday night...northeast winds 15 to 20 knots with gusts up to
30 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
northeast 4 feet at 7 seconds and south 1 foot at 5 seconds.
.saturday...northeast 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: northeast 4 feet at 7 seconds and south 1 foot at
6 seconds. scattered showers in the afternoon.
.saturday night...northeast winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. seas 3 to 5 feet, occasionally to
6 feet. wave detail: northeast 4 feet at 6 seconds and south 1 foot
at 6 seconds.
.sunday...east winds 15 to 20 knots, becoming northeast 20 to
25 knots in the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
scattered showers in the afternoon.
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 6 feet, occasionally to 8 feet.
scattered showers.
.monday...east winds 5 to 10 knots. seas 3 to 5 feet, occasionally
to 6 feet. scattered showers in the morning, then numerous showers
in the afternoon.
.monday night...east winds around 5 knots. seas 2 to 4 feet,
occasionally to 5 feet. scattered showers.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/13/2026 3:50 AM America/Puerto_Rico.
Valid through 8/13/2026 6:00 PM America/Puerto_Rico.
fzca52 tjsj 130750
cwfsju
expires:202608132200;;104611
coastal waters forecast
national weather service san juan pr
350 am ast thu aug 13 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.
amz745-132200-
coastal waters of southwestern puerto rico out 10 nm-
350 am ast thu aug 13 2026
...small craft should exercise caution...
.today...east winds 10 to 15 knots, becoming southeast 15 to
20 knots late this morning and afternoon. gusts up to 30 knots. seas
2 to 4 feet, occasionally to 5 feet. wave detail: southeast 3 feet
at 4 seconds and north 1 foot at 5 seconds.
.tonight...east winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. gusts up to 30 knots. seas 2 to 4 feet, occasionally
to 5 feet. wave detail: southeast 3 feet at 5 seconds.
.friday...east winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. gusts up to 30 knots. seas 2 to 3 feet,
building to 3 to 5 feet, occasionally to 6 feet in the afternoon.
wave detail: southeast 2 feet at 6 seconds, becoming southeast
3 feet at 6 seconds.
.friday night...east winds 10 to 15 knots, becoming northeast 5 to
10 knots after midnight. gusts up to 25 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: southeast 3 feet at 6 seconds.
.saturday...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: southeast 2 feet at 7 seconds. scattered showers in the
afternoon.
.saturday night...northeast winds 10 to 15 knots with gusts up to
25 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
north 2 feet at 3 seconds and southeast 2 feet at 6 seconds.
.sunday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 2 to 3 feet. numerous showers in the afternoon.
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
.monday...east winds 10 to 15 knots. seas 2 to 4 feet, occasionally
to 5 feet. scattered showers.
.monday night...east winds 10 to 15 knots. seas 2 to 3 feet.
$$
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