(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/11/2026 4:39 PM America/Puerto_Rico.
Valid through 8/12/2026 5:15 AM America/Puerto_Rico.
fzca52 tjsj 112039
cwfsju
expires:202608120915;;018343
coastal waters forecast
national weather service san juan pr
439 pm ast tue aug 11 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.
amz712-120915-
coastal waters of northern puerto rico out 10 nm-
439 pm ast tue aug 11 2026
...small craft should exercise caution...
.tonight...east winds 15 to 20 knots, diminishing to 10 to 15 knots
late this evening and overnight. seas around 4 feet, occasionally to
5 feet. wave detail: northeast 4 feet at 7 seconds. scattered
showers.
.wednesday...east winds 10 to 15 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 knots in the
afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave detail:
northeast 4 feet at 7 seconds. scattered showers in the afternoon.
.wednesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas around 4 feet, occasionally to 5 feet.
wave detail: east 4 feet at 6 seconds.
.thursday...east winds 15 to 20 knots, increasing to 20 to 25 knots
in the afternoon. seas 4 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 7 seconds.
.thursday 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.
.friday...east winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. gusts up to 35 knots. seas 5 to 7 feet, occasionally
to 9 feet. wave detail: east 6 feet at 7 seconds and northeast
2 feet 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.
.saturday...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet.
.saturday night...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet.
.sunday...northeast winds 15 to 20 knots. seas around 6 feet,
occasionally to 8 feet.
.sunday night...east winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/11/2026 4:39 PM America/Puerto_Rico.
Valid through 8/12/2026 5:15 AM America/Puerto_Rico.
fzca52 tjsj 112039
cwfsju
expires:202608120915;;018348
coastal waters forecast
national weather service san juan pr
439 pm ast tue aug 11 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.
amz735-120915-
coastal waters of southern puerto rico out 10 nm-
439 pm ast tue aug 11 2026
.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. scattered showers until early morning, then isolated
showers late.
.wednesday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: east 3 feet
at 5 seconds.
.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. scattered showers in the evening.
.thursday...east winds 15 to 20 knots with gusts up to 30 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 6 seconds.
.thursday 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.
.friday...east winds 20 to 25 knots, diminishing to 15 to 20 knots
in the afternoon. seas 5 to 7 feet, occasionally to 9 feet. wave
detail: east 6 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.
.saturday...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet.
.saturday night...northeast winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet.
.sunday...northeast winds 15 to 20 knots, becoming east 20 to
25 knots in the afternoon. seas 4 to 6 feet, occasionally to 8 feet.
.sunday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/11/2026 4:39 PM America/Puerto_Rico.
Valid through 8/12/2026 5:15 AM America/Puerto_Rico.
fzca52 tjsj 112039
cwfsju
expires:202608120915;;018349
coastal waters forecast
national weather service san juan pr
439 pm ast tue aug 11 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.
amz741-120915-
mona passage southward to 17n-
439 pm ast tue aug 11 2026
.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. isolated thunderstorms this evening. scattered showers.
.wednesday...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. scattered showers in the morning.
.wednesday night...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. scattered showers after midnight.
.thursday...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.
.thursday night...east winds 20 to 25 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 with gusts up to 30 knots. seas
6 to 9 feet, occasionally to 11 feet. wave detail: east 8 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.
.saturday...east winds 15 to 20 knots. seas 5 to 8 feet,
occasionally to 10 feet.
.saturday night...northeast winds 15 to 20 knots. seas 6 to 7 feet,
occasionally to 9 feet.
.sunday...northeast winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet.
.sunday night...northeast winds 20 to 25 knots, becoming east 15 to
20 knots after midnight. seas 6 to 7 feet, occasionally to 9 feet.
scattered showers.
winds and seas higher in and near thunderstorms.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/11/2026 4:39 PM America/Puerto_Rico.
Valid through 8/12/2026 5:15 AM America/Puerto_Rico.
fzca52 tjsj 112039
cwfsju
expires:202608120915;;018350
coastal waters forecast
national weather service san juan pr
439 pm ast tue aug 11 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.
amz742-120915-
coastal waters of northwestern puerto rico out 10 nm-
439 pm ast tue aug 11 2026
.tonight...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots with gusts up to 20 knots late this
evening and overnight. seas 2 to 3 feet. wave detail: northeast
3 feet at 5 seconds. numerous showers with isolated thunderstorms
early this evening, then isolated showers late this evening.
.wednesday...east winds around 5 knots, becoming northeast in the
afternoon. seas 2 to 3 feet. wave detail: northeast 3 feet at
6 seconds. scattered showers in the afternoon.
.wednesday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: east 3 feet at 6 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 3 feet. wave
detail: east 3 feet at 6 seconds. scattered showers in the
afternoon.
.thursday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
east 4 feet at 7 seconds.
.friday...east winds 10 to 15 knots. gusts up to 30 knots in the
afternoon. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
east 4 feet at 7 seconds. scattered showers in the afternoon.
.friday night...east winds 15 to 20 knots, becoming northeast 10 to
15 knots after midnight. gusts up to 30 knots. seas 2 to 4 feet,
occasionally to 5 feet.
.saturday...northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
scattered showers in the afternoon.
.saturday night...northeast winds 15 to 20 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.sunday...northeast winds 15 to 20 knots, increasing to 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. seas 4 to 6 feet,
occasionally to 8 feet.
winds and seas higher in and near thunderstorms.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/11/2026 4:39 PM America/Puerto_Rico.
Valid through 8/12/2026 5:15 AM America/Puerto_Rico.
fzca52 tjsj 112039
cwfsju
expires:202608120915;;018351
coastal waters forecast
national weather service san juan pr
439 pm ast tue aug 11 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.
amz745-120915-
coastal waters of southwestern puerto rico out 10 nm-
439 pm ast tue aug 11 2026
.tonight...east winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this evening and overnight. seas 2 to
3 feet. wave detail: east 2 feet at 5 seconds. scattered showers
early this evening, then isolated showers late this evening and
overnight.
.wednesday...southeast winds 10 to 15 knots with gusts up to
25 knots. seas 2 to 3 feet. wave detail: southeast 2 feet at
4 seconds.
.wednesday night...east 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...east winds 15 to 20 knots with gusts up to 30 knots.
seas 2 to 4 feet, occasionally to 5 feet. wave detail: southeast
3 feet at 4 seconds.
.thursday 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 4 seconds.
.friday...east winds 15 to 20 knots with 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: east 3 feet at 5 seconds, becoming southeast
3 feet at 5 seconds.
.friday night...east winds 15 to 20 knots with gusts up to 25 knots,
becoming northeast 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. scattered
showers in the afternoon.
.saturday night...northeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. seas 2 to 4 feet, occasionally to
5 feet.
.sunday...northeast winds 10 to 15 knots. seas 2 to 3 feet.
scattered showers in the afternoon.
.sunday night...northeast winds 15 to 20 knots, becoming east 10 to
15 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
$$
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