(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 3:36 AM America/Puerto_Rico.
Valid through 6/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180736
cwfsju
expires:202606182015;;944392
coastal waters forecast
national weather service san juan pr
336 am ast thu jun 18 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.
amz712-182015-
coastal waters of northern puerto rico out 10 nm-
336 am ast thu jun 18 2026
...small craft should exercise caution...
.today...east winds 5 to 10 knots with gusts up to 20 knots,
increasing to 15 to 20 knots with gusts up to 30 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. scattered showers.
isolated thunderstorms late this morning. isolated thunderstorms
late.
.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 10 seconds.
scattered showers.
.friday...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 5 feet, occasionally to 6 feet. wave detail:
east 5 feet at 6 seconds and northeast 1 foot at 11 seconds.
.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.
wave detail: east 5 feet at 6 seconds and north 1 foot at
11 seconds. scattered showers after midnight.
.saturday...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 5 feet, occasionally to 6 feet. wave detail:
east 4 feet at 6 seconds and northeast 1 foot at 11 seconds.
.saturday 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 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 after midnight.
.sunday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
.monday...east winds 15 to 20 knots. seas 3 to 5 feet, occasionally
to 6 feet. scattered showers in the afternoon.
.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.
winds and seas higher in and near thunderstorms.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 3:36 AM America/Puerto_Rico.
Valid through 6/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180736
cwfsju
expires:202606182015;;944397
coastal waters forecast
national weather service san juan pr
336 am ast thu jun 18 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.
amz735-182015-
coastal waters of southern puerto rico out 10 nm-
336 am ast thu jun 18 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
6 seconds. scattered 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. scattered showers.
.friday...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. scattered showers in the morning.
.friday night...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.
.saturday...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: east 4 feet at 7 seconds.
.saturday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
wave detail: east 4 feet at 7 seconds. scattered showers after
midnight.
.sunday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
.sunday night...east winds 15 to 20 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.monday...east winds 15 to 20 knots. seas 3 to 5 feet, occasionally
to 6 feet. scattered showers in the afternoon.
.monday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
scattered showers.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 3:36 AM America/Puerto_Rico.
Valid through 6/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180736
cwfsju
expires:202606182015;;944398
coastal waters forecast
national weather service san juan pr
336 am ast thu jun 18 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.
amz741-182015-
mona passage southward to 17n-
336 am ast thu jun 18 2026
...small craft should exercise caution...
.today...east winds 10 to 15 knots, increasing to 15 to 20 knots
late this morning, then diminishing to 10 to 15 knots this
afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave detail:
east 4 feet at 6 seconds and northeast 1 foot at 11 seconds.
scattered showers until late afternoon, then numerous showers with
isolated thunderstorms 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
6 seconds and northeast 1 foot at 10 seconds. scattered showers in
the evening, then numerous showers after midnight.
.friday...east winds 15 to 20 knots with gusts up to 25 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. scattered showers in
the morning.
.friday 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 and northeast 1 foot at 11 seconds.
.saturday...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. numerous showers in
the afternoon.
.saturday 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 7 seconds and northeast 1 foot at 11 seconds.
scattered showers after midnight.
.sunday...east winds 15 to 20 knots. 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 5 feet,
occasionally to 6 feet. scattered showers.
.monday...east winds 15 to 20 knots. seas 4 to 6 feet, occasionally
to 8 feet. scattered showers in the morning, then numerous showers
in the afternoon.
.monday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers.
winds and seas higher in and near thunderstorms.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 3:36 AM America/Puerto_Rico.
Valid through 6/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180736
cwfsju
expires:202606182015;;944399
coastal waters forecast
national weather service san juan pr
336 am ast thu jun 18 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.
amz742-182015-
coastal waters of northwestern puerto rico out 10 nm-
336 am ast thu jun 18 2026
.today...northeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: east 2 feet at 6 seconds and northeast 1 foot at 11 seconds.
scattered showers with isolated thunderstorms late this morning.
showers with isolated thunderstorms this afternoon.
.tonight...east winds 5 to 10 knots with gusts up to 20 knots. seas
2 to 3 feet. wave detail: east 2 feet at 6 seconds and northeast
1 foot at 10 seconds. scattered showers in the evening.
.friday...northeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 6 seconds and northeast 1 foot at
10 seconds. showers in the afternoon.
.friday 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.
.saturday...east winds 5 to 10 knots, becoming northeast in the
afternoon. seas 2 to 3 feet. wave detail: east 3 feet at 7 seconds
and northeast 1 foot at 10 seconds. numerous showers in the
afternoon.
.saturday night...east winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. seas 2 to 4 feet,
occasionally to 5 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. numerous
showers in the afternoon.
.sunday night...east winds 5 to 10 knots. seas 2 to 3 feet.
scattered showers.
.monday...east winds 5 to 10 knots. seas 2 to 3 feet. numerous
showers in the afternoon.
.monday night...east winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. scattered showers.
winds and seas higher in and near thunderstorms.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 3:36 AM America/Puerto_Rico.
Valid through 6/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180736
cwfsju
expires:202606182015;;944400
coastal waters forecast
national weather service san juan pr
336 am ast thu jun 18 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.
amz745-182015-
coastal waters of southwestern puerto rico out 10 nm-
336 am ast thu jun 18 2026
.today...east winds 5 to 10 knots, becoming southeast with gusts up
to 20 knots this afternoon. seas around 2 feet. wave detail:
southeast 2 feet at 6 seconds. isolated showers this morning, then
numerous showers with isolated thunderstorms this afternoon.
.tonight...east winds 10 to 15 knots with gusts up to 20 knots. seas
2 to 3 feet. wave detail: southeast 2 feet at 6 seconds. scattered
showers in the evening.
.friday...east winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. seas 2 to 3 feet. wave detail: southeast
3 feet at 6 seconds. showers in the afternoon.
.friday night...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.
.saturday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 2 to 3 feet. wave detail: southeast 2 feet at 7 seconds.
scattered showers in the afternoon.
.saturday night...east winds 10 to 15 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, becoming southeast 15 to
20 knots in the afternoon. seas 2 to 3 feet.
.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.
scattered showers.
.monday...east winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. seas 2 to 3 feet. scattered showers in
the afternoon.
.monday night...east winds 10 to 15 knots. seas 2 to 3 feet.
winds and seas higher in and near thunderstorms.
$$
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