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(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 5/18/2026 3:28 AM America/Puerto_Rico.
Valid through 5/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180728
cwfsju
expires:202605182015;;755779
coastal waters forecast
national weather service san juan pr
328 am ast mon may 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-
328 am ast mon may 18 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 and northeast 1 foot at 10 seconds. scattered showers
early this morning, then isolated showers late this morning and
afternoon.
.tonight...east winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. seas 4 to 5 feet, occasionally to 6 feet. wave
detail: northeast 5 feet at 9 seconds and north 1 foot at 8 seconds.
scattered showers in the evening.
.tuesday...east winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. gusts up to 30 knots. seas 4 to 5 feet,
occasionally to 6 feet. wave detail: east 5 feet at 8 seconds and
north 1 foot at 8 seconds. scattered showers in the afternoon.
.tuesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 6 feet, occasionally to 8 feet.
wave detail: east 5 feet at 8 seconds and north 1 foot at 7 seconds.
scattered showers in the evening.
.wednesday...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 8 seconds. scattered showers.
.wednesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 5 to 6 feet, occasionally to 8 feet.
wave detail: east 5 feet at 8 seconds. scattered showers.
.thursday...east winds 15 to 20 knots. seas 4 to 5 feet,
occasionally to 6 feet. scattered showers in the afternoon.
.thursday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet. scattered showers.
.friday...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.
.friday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 5/18/2026 3:28 AM America/Puerto_Rico.
Valid through 5/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180728
cwfsju
expires:202605182015;;755784
coastal waters forecast
national weather service san juan pr
328 am ast mon may 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-
328 am ast mon may 18 2026
...small craft should exercise caution...
.today...east winds 10 to 15 knots, increasing to 15 to 20 knots
late this morning and early afternoon, then diminishing to 10 to
15 knots late. seas 3 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 7 seconds. scattered showers early this
morning, then isolated showers late this morning and afternoon.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet at
7 seconds.
.tuesday...east winds 10 to 15 knots, increasing to 15 to 20 knots
in the afternoon. seas 3 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 7 seconds.
.tuesday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 5 feet, occasionally to 6 feet. wave detail:
east 4 feet at 7 seconds. scattered showers.
.wednesday...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. 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 7 seconds. scattered showers.
.thursday...east winds 15 to 20 knots. seas 3 to 5 feet,
occasionally to 6 feet. scattered showers in the morning.
.thursday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.friday...east winds 10 to 15 knots. seas 3 to 4 feet, occasionally
to 5 feet.
.friday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 5/18/2026 3:28 AM America/Puerto_Rico.
Valid through 5/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180728
cwfsju
expires:202605182015;;755785
coastal waters forecast
national weather service san juan pr
328 am ast mon may 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-
328 am ast mon may 18 2026
...small craft should exercise caution...
.today...east winds 15 to 20 knots, diminishing to 10 to 15 knots
late. seas 4 to 5 feet, occasionally to 6 feet. wave detail: east
5 feet at 7 seconds and northeast 1 foot at 11 seconds. isolated
showers until late afternoon, then scattered showers late.
.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 5 feet at
7 seconds. scattered showers.
.tuesday...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 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 north 1 foot at 8 seconds.
.wednesday...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 7 seconds. scattered showers in the morning.
.wednesday 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 5 feet at 7 seconds.
.thursday...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers in the afternoon.
.thursday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet.
.friday...east winds 10 to 15 knots. seas 4 to 5 feet, occasionally
to 6 feet. scattered showers in the afternoon.
.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.
scattered showers.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 5/18/2026 3:28 AM America/Puerto_Rico.
Valid through 5/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180728
cwfsju
expires:202605182015;;755786
coastal waters forecast
national weather service san juan pr
328 am ast mon may 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-
328 am ast mon may 18 2026
.today...east winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 25 knots late. seas 2 to 4 feet, occasionally to 5 feet.
wave detail: east 3 feet at 7 seconds and northeast 1 foot at
11 seconds. numerous showers with isolated thunderstorms 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. scattered showers in the evening.
.tuesday...east winds 5 to 10 knots. seas 2 to 4 feet, occasionally
to 5 feet. wave detail: northeast 3 feet at 7 seconds and north
1 foot at 9 seconds. scattered showers in the afternoon.
.tuesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
east 3 feet at 7 seconds and north 1 foot at 8 seconds. scattered
showers in the evening.
.wednesday...east winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. seas 2 to 4 feet, occasionally to 5 feet. wave
detail: northeast 3 feet at 7 seconds. numerous showers in the
afternoon.
.wednesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 4 feet, occasionally to 5 feet. wave detail:
northeast 3 feet at 7 seconds. scattered showers in the evening.
.thursday...east winds 5 to 10 knots. seas 2 to 4 feet, occasionally
to 5 feet. numerous showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas 2 to 3 feet.
scattered showers.
.friday...east winds 5 to 10 knots. seas 2 to 3 feet. numerous
showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 2 to 3 feet.
scattered showers.
winds and seas higher in and near thunderstorms.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 5/18/2026 3:28 AM America/Puerto_Rico.
Valid through 5/18/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 180728
cwfsju
expires:202605182015;;755787
coastal waters forecast
national weather service san juan pr
328 am ast mon may 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-
328 am ast mon may 18 2026
.today...east winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots late this morning and afternoon. seas 2 to
3 feet. wave detail: southeast 2 feet at 6 seconds. scattered
showers early this afternoon. scattered showers with isolated
thunderstorms late.
.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.
.tuesday...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.
.tuesday night...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: southeast 3 feet at 6 seconds and northwest
1 foot at 8 seconds.
.wednesday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 2 to 3 feet. wave detail: southeast 3 feet at 5 seconds and
north 1 foot at 7 seconds.
.wednesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 2 to 3 feet. wave detail: southeast
3 feet at 6 seconds.
.thursday...east winds 10 to 15 knots. seas 2 to 3 feet.
.thursday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 2 to 3 feet.
.friday...east winds 10 to 15 knots. seas 2 to 3 feet.
.friday night...east winds 10 to 15 knots. seas 2 to 3 feet.
scattered showers.
winds and seas higher in and near thunderstorms.
$$
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