(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:13 AM America/Puerto_Rico.
Valid through 7/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180813
cwfsju
expires:202607182115;;166257
coastal waters forecast
national weather service san juan pr
413 am ast sat jul 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.
amz712-182115-
coastal waters of northern puerto rico out 10 nm-
413 am ast sat jul 18 2026
...small craft should exercise caution...
.today...east winds 10 to 15 knots with gusts up to 25 knots,
increasing to 15 to 20 knots with gusts up to 30 knots this
afternoon. seas around 4 feet, occasionally to 5 feet. wave detail:
northeast 4 feet at 7 seconds. isolated showers late this morning
and afternoon.
.tonight...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 in the evening.
.sunday...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: northeast 4 feet at 7 seconds.
.sunday night...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 4 feet at 7 seconds.
.monday...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 around 4 feet, occasionally to 5 feet. wave detail:
northeast 4 feet at 7 seconds.
.monday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 3 to 4 feet, occasionally to 5 feet.
wave detail: northeast 4 feet at 7 seconds.
.tuesday...northeast winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.tuesday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas around 3 feet.
.wednesday...east winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. seas around 3 feet.
.wednesday night...southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. seas around 3 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:13 AM America/Puerto_Rico.
Valid through 7/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180813
cwfsju
expires:202607182115;;166262
coastal waters forecast
national weather service san juan pr
413 am ast sat jul 18 2026
puerto rico and the u.s. virgin islands waters
seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.
amz735-182115-
coastal waters of southern puerto rico out 10 nm-
413 am ast sat jul 18 2026
.today...east winds 10 to 15 knots with gusts up to 25 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: southeast 5 feet
at 7 seconds. isolated showers.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 5 feet, occasionally to 6 feet. wave detail: southeast 4 feet
at 7 seconds.
.sunday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 3 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 7 seconds.
.sunday night...east winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet
at 7 seconds. scattered showers in the evening.
.monday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave
detail: east 4 feet at 7 seconds.
.monday night...east winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet
at 6 seconds.
.tuesday...northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
.tuesday night...east winds 5 to 10 knots. seas 2 to 3 feet.
.wednesday...east winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. seas 2 to 3 feet.
.wednesday night...east winds 10 to 15 knots. seas 2 to 3 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:13 AM America/Puerto_Rico.
Valid through 7/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180813
cwfsju
expires:202607182115;;166263
coastal waters forecast
national weather service san juan pr
413 am ast sat jul 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.
amz741-182115-
mona passage southward to 17n-
413 am ast sat jul 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. isolated showers.
.tonight...east winds 10 to 15 knots, increasing to 15 to 20 knots
after midnight. seas 4 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 7 seconds. scattered showers after midnight.
.sunday...east winds 10 to 15 knots with gusts up to 25 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet at
7 seconds.
.sunday 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.
.monday...east winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. seas 4 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 7 seconds.
.monday 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 4 feet
at 6 seconds. scattered showers.
.tuesday...northeast winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.tuesday night...northeast winds 5 to 10 knots, becoming east 10 to
15 knots after midnight. seas 3 to 4 feet, occasionally to 5 feet.
scattered showers.
.wednesday...east winds 10 to 15 knots. seas around 3 feet.
.wednesday night...east winds 10 to 15 knots. seas around 3 feet.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:13 AM America/Puerto_Rico.
Valid through 7/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180813
cwfsju
expires:202607182115;;166264
coastal waters forecast
national weather service san juan pr
413 am ast sat jul 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.
amz742-182115-
coastal waters of northwestern puerto rico out 10 nm-
413 am ast sat jul 18 2026
.today...east winds 5 to 10 knots with gusts up to 20 knots,
becoming northeast with gusts up to 20 knots early this afternoon,
then increasing to 10 to 15 knots with gusts up to 20 knots late.
seas 2 to 3 feet. wave detail: northeast 3 feet at 7 seconds and
south 1 foot at 6 seconds. isolated showers late this morning.
scattered showers 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 1 foot at 6 seconds.
.sunday...northeast winds 10 to 15 knots with gusts up to 20 knots.
seas 2 to 3 feet. wave detail: northeast 3 feet at 7 seconds.
scattered showers in the afternoon.
.sunday night...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 6 seconds.
.monday...east winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. seas 2 to 3 feet. wave detail: east
3 feet at 7 seconds. scattered showers in the afternoon.
.monday night...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 6 seconds.
.tuesday...northeast winds 10 to 15 knots. seas 2 to 3 feet.
numerous showers in the afternoon.
.tuesday night...northeast winds 10 to 15 knots, becoming east 5 to
10 knots after midnight. seas 2 to 3 feet.
.wednesday...east winds around 5 knots. seas 2 to 3 feet. scattered
showers in the afternoon.
.wednesday night...east winds around 5 knots, becoming southeast
after midnight. seas around 2 feet.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:13 AM America/Puerto_Rico.
Valid through 7/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180813
cwfsju
expires:202607182115;;166265
coastal waters forecast
national weather service san juan pr
413 am ast sat jul 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.
amz745-182115-
coastal waters of southwestern puerto rico out 10 nm-
413 am ast sat jul 18 2026
.today...east winds 5 to 10 knots, becoming southeast with gusts up
to 20 knots this afternoon. seas 2 to 3 feet. wave detail: southeast
2 feet at 6 seconds and north 1 foot at 7 seconds. isolated showers
early this afternoon. scattered showers late.
.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
southeast 3 feet at 7 seconds. scattered showers in the evening.
.sunday...southeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: southeast 2 feet at 7 seconds.
.sunday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 1 foot at 6 seconds.
.monday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
east 1 foot at 5 seconds.
.monday night...east winds 5 to 10 knots, becoming northeast after
midnight. seas 2 to 3 feet. wave detail: southeast 2 feet at
6 seconds.
.tuesday...northeast winds around 5 knots. seas 2 to 3 feet.
scattered showers in the afternoon.
.tuesday night...east winds around 5 knots. seas around 2 feet.
scattered showers.
.wednesday...east winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. seas around 2 feet.
.wednesday night...east winds 5 to 10 knots. seas around 2 feet.
$$
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