(1/4)
Latest Coastal Waters Forecast by TJSJ
Issued 12/18/2025 3:47 AM America/Puerto_Rico.
Valid through 12/18/2025 4:30 PM America/Puerto_Rico.
fzca52 tjsj 180747
cwfsju
expires:202512182030;;784331
coastal waters forecast
national weather service san juan pr
347 am ast thu dec 18 2025
puerto rico and the u.s. virgin islands waters
amz712-182030-
coastal waters of northern puerto rico out 10 nm-
347 am ast thu dec 18 2025
...small craft advisory in effect through this evening...
.today...east winds 10 to 15 knots with gusts up to 25 knots. seas
6 to 7 feet. wave detail: east 7 feet at 10 seconds and north 4 feet
at 11 seconds. isolated showers this afternoon.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
5 to 7 feet. wave detail: east 7 feet at 10 seconds and north 4 feet
at 10 seconds. scattered showers in the evening, then numerous
showers after midnight.
.friday...east winds 10 to 15 knots with gusts up to 20 knots. seas
5 to 6 feet. wave detail: northeast 5 feet at 10 seconds and east
3 feet at 5 seconds.
.friday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 5 to 6 feet. wave detail: northeast
5 feet at 9 seconds and northeast 1 foot at 17 seconds. scattered
showers after midnight.
.saturday...east winds 10 to 15 knots with gusts up to 25 knots.
seas 5 to 6 feet. wave detail: northeast 5 feet at 9 seconds and
northeast 4 feet at 15 seconds. scattered showers in the morning.
.saturday night...east winds 10 to 15 knots with gusts up to
25 knots. seas 5 to 7 feet. wave detail: east 6 feet at 11 seconds
and northeast 5 feet at 13 seconds. scattered showers.
.sunday...east winds 10 to 15 knots. seas 6 to 7 feet.
.sunday night...east winds 10 to 15 knots. seas 5 to 7 feet.
scattered showers.
.monday...east winds 10 to 15 knots. seas 5 to 6 feet. scattered
showers in the afternoon.
.monday night...east winds 10 to 15 knots. seas 4 to 5 feet.
scattered showers.
$$
(2/4)
Latest Coastal Waters Forecast by TJSJ
Issued 12/18/2025 3:47 AM America/Puerto_Rico.
Valid through 12/18/2025 4:30 PM America/Puerto_Rico.
fzca52 tjsj 180747
cwfsju
expires:202512182030;;784336
coastal waters forecast
national weather service san juan pr
347 am ast thu dec 18 2025
puerto rico and the u.s. virgin islands waters
amz735-182030-
coastal waters of southern puerto rico out 10 nm-
347 am ast thu dec 18 2025
.today...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 5 feet. wave detail: east 4 feet at 6 seconds and east 2 feet
at 9 seconds. isolated showers late this morning and afternoon.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 5 feet. wave detail: east 4 feet at 6 seconds. scattered
showers in the evening.
.friday...east winds 10 to 15 knots with gusts up to 20 knots. seas
3 to 4 feet. wave detail: east 4 feet at 6 seconds and east 1 foot
at 10 seconds.
.friday night...northeast winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 3 to 4 feet. wave detail: east 3 feet
at 6 seconds and east 1 foot at 10 seconds. scattered showers after
midnight.
.saturday...northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. gusts up to 25 knots. seas 2 to 4 feet.
wave detail: east 3 feet at 6 seconds.
.saturday night...northeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. gusts up to 25 knots. seas 3 to
4 feet. wave detail: east 3 feet at 6 seconds. scattered showers in
the evening.
.sunday...east winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. seas 3 to 4 feet. scattered showers in the afternoon.
.sunday night...east winds 10 to 15 knots, becoming northeast 5 to
10 knots after midnight. seas 2 to 4 feet.
.monday...east winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. seas 2 to 4 feet. scattered showers in the afternoon.
.monday night...northeast winds 5 to 10 knots. seas 2 to 4 feet.
$$
(3/4)
Latest Coastal Waters Forecast by TJSJ
Issued 12/18/2025 3:47 AM America/Puerto_Rico.
Valid through 12/18/2025 4:30 PM America/Puerto_Rico.
fzca52 tjsj 180747
cwfsju
expires:202512182030;;784338
coastal waters forecast
national weather service san juan pr
347 am ast thu dec 18 2025
puerto rico and the u.s. virgin islands waters
amz742-182030-
coastal waters of northwestern puerto rico out 10 nm-
347 am ast thu dec 18 2025
...small craft advisory in effect until 6 am ast early this
morning...
...small craft should exercise caution today...
.today...east winds 10 to 15 knots, diminishing to 5 to 10 knots
this afternoon. seas 4 to 6 feet. wave detail: north 5 feet at
11 seconds and east 2 feet at 5 seconds. scattered showers late.
.tonight...east winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. seas 4 to 6 feet. wave detail: north 4 feet at
11 seconds and east 3 feet at 5 seconds.
.friday...east winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. seas 3 to 5 feet. wave detail: north 4 feet at
10 seconds and east 3 feet at 6 seconds. scattered showers in the
afternoon.
.friday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 3 to 5 feet. wave detail: north 4 feet at 9 seconds and south
1 foot at 7 seconds.
.saturday...northeast winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 5 feet. wave detail: north 4 feet at 8 seconds
and southeast 1 foot at 6 seconds. scattered showers in the
afternoon.
.saturday night...northeast winds 10 to 15 knots with gusts up to
25 knots. seas 3 to 5 feet. wave detail: northeast 5 feet at
8 seconds and northeast 5 feet at 13 seconds.
.sunday...east winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. seas 3 to 5 feet. scattered showers in the afternoon.
.sunday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 3 to 5 feet.
.monday...northeast winds 10 to 15 knots. seas 3 to 5 feet.
.monday night...northeast winds 10 to 15 knots. seas 3 to 5 feet.
$$
(4/4)
Latest Coastal Waters Forecast by TJSJ
Issued 12/18/2025 3:47 AM America/Puerto_Rico.
Valid through 12/18/2025 4:30 PM America/Puerto_Rico.
fzca52 tjsj 180747
cwfsju
expires:202512182030;;784339
coastal waters forecast
national weather service san juan pr
347 am ast thu dec 18 2025
puerto rico and the u.s. virgin islands waters
amz745-182030-
coastal waters of southwestern puerto rico out 10 nm-
347 am ast thu dec 18 2025
.today...east winds 5 to 10 knots, diminishing to around 5 knots
late. seas 3 to 5 feet. wave detail: northwest 4 feet at 10 seconds
and southeast 2 feet at 6 seconds. scattered showers late.
.tonight...east winds 5 to 10 knots. seas 3 to 5 feet. wave detail:
northwest 3 feet at 10 seconds and southeast 2 feet at 6 seconds.
.friday...east winds around 5 knots. seas 2 to 4 feet. wave detail:
northwest 3 feet at 10 seconds and south 2 feet at 6 seconds.
scattered showers in the afternoon.
.friday night...northeast winds around 5 knots. seas 2 to 3 feet.
wave detail: north 2 feet at 9 seconds and south 1 foot at
6 seconds.
.saturday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
north 2 feet at 9 seconds and south 1 foot at 6 seconds. scattered
showers in the afternoon.
.saturday night...northeast winds 5 to 10 knots. seas 2 to 3 feet.
wave detail: north 2 feet at 8 seconds and southeast 1 foot at
6 seconds. scattered showers in the evening.
.sunday...east winds 5 to 10 knots. seas 2 to 3 feet. numerous
showers in the afternoon.
.sunday night...northeast winds around 5 knots. seas 2 to 3 feet.
.monday...east winds around 5 knots. seas 2 to 3 feet. numerous
showers in the afternoon.
.monday night...northeast winds 5 to 10 knots. seas around 2 feet.
$$
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