(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/18/2026 4:14 AM America/Puerto_Rico.
Valid through 4/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180814
cwfsju
expires:202604182115;;571038
coastal waters forecast
national weather service san juan pr
414 am ast sat apr 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-
414 am ast sat apr 18 2026
.today...east winds 10 to 15 knots with gusts up to 20 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: northeast 4 feet
at 8 seconds and northeast 1 foot at 12 seconds. scattered showers,
mainly this morning.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: northeast 4 feet
at 8 seconds and northeast 2 feet at 12 seconds.
.sunday...east winds 10 to 15 knots with gusts up to 20 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: northeast 4 feet
at 8 seconds and northeast 2 feet at 12 seconds.
.sunday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: northeast
4 feet at 8 seconds and northeast 2 feet at 12 seconds.
.monday...east winds 10 to 15 knots with gusts up to 25 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: northeast 4 feet
at 8 seconds and northeast 2 feet at 12 seconds. scattered showers
in the afternoon.
.monday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: northeast
4 feet at 8 seconds and northeast 2 feet at 11 seconds.
.tuesday...east winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. seas around 4 feet, occasionally to 5 feet. scattered
showers in the morning.
.tuesday night...east winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.wednesday...east winds 5 to 10 knots, becoming northeast 10 to
15 knots in the afternoon. seas around 3 feet.
.wednesday night...east winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/18/2026 4:14 AM America/Puerto_Rico.
Valid through 4/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180814
cwfsju
expires:202604182115;;571043
coastal waters forecast
national weather service san juan pr
414 am ast sat apr 18 2026
puerto rico and the u.s. virgin islands waters
seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.
amz735-182115-
coastal waters of southern puerto rico out 10 nm-
414 am ast sat apr 18 2026
.today...east winds 10 to 15 knots with gusts up to 20 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: southeast 4 feet
at 6 seconds. scattered showers.
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: east 3 feet at
6 seconds.
.sunday...east winds 10 to 15 knots with gusts up to 20 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: southeast 3 feet
at 6 seconds.
.sunday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: east 3 feet
at 6 seconds.
.monday...east winds 10 to 15 knots with gusts up to 20 knots. seas
2 to 4 feet, occasionally to 5 feet. wave detail: southeast 3 feet
at 6 seconds. scattered showers in the afternoon.
.monday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
wave detail: east 3 feet at 6 seconds.
.tuesday...east winds 5 to 10 knots. seas 2 to 3 feet.
.tuesday night...east winds 5 to 10 knots. seas 2 to 3 feet.
scattered showers.
.wednesday...east winds 5 to 10 knots. seas 2 to 3 feet.
.wednesday night...east winds 5 to 10 knots. seas 2 to 3 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/18/2026 4:14 AM America/Puerto_Rico.
Valid through 4/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180814
cwfsju
expires:202604182115;;571044
coastal waters forecast
national weather service san juan pr
414 am ast sat apr 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-
414 am ast sat apr 18 2026
.today...east winds 10 to 15 knots with gusts up to 20 knots. seas
around 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
7 seconds and northeast 1 foot at 12 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
around 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
7 seconds and northeast 1 foot at 12 seconds. scattered showers in
the evening.
.sunday...east winds 10 to 15 knots with gusts up to 25 knots. seas
around 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
7 seconds and north 1 foot at 12 seconds.
.sunday 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 and north 1 foot at 12 seconds.
.monday...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 and north 1 foot at 12 seconds.
.monday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 3 to 4 feet, occasionally to 5 feet. wave detail: east 3 feet
at 7 seconds and northeast 1 foot at 12 seconds. scattered showers.
.tuesday...east winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
scattered showers in the morning.
.tuesday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. scattered showers.
.wednesday...east winds 10 to 15 knots. seas around 3 feet.
scattered showers in the afternoon.
.wednesday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/18/2026 4:14 AM America/Puerto_Rico.
Valid through 4/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180814
cwfsju
expires:202604182115;;571045
coastal waters forecast
national weather service san juan pr
414 am ast sat apr 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-
414 am ast sat apr 18 2026
.today...east winds 5 to 10 knots with gusts up to 20 knots,
diminishing to around 5 knots early this afternoon, then increasing
to 5 to 10 knots with gusts up to 20 knots late. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northeast 3 feet at 8 seconds
and south 1 foot at 7 seconds. scattered 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 and south 1 foot at 7 seconds. scattered showers in the
evening.
.sunday...east winds 5 to 10 knots. seas 2 to 4 feet, occasionally
to 5 feet. wave detail: northeast 3 feet at 7 seconds and south
1 foot at 7 seconds. scattered showers in the morning, then numerous
showers in the afternoon.
.sunday 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 6 seconds and northeast 2 feet at 12 seconds.
.monday...east winds 5 to 10 knots with gusts up to 20 knots,
diminishing to around 5 knots in the afternoon. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northeast 3 feet at 6 seconds
and northeast 2 feet at 12 seconds. scattered showers in the
afternoon.
.monday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 6 seconds and northeast 2 feet at
11 seconds. scattered showers.
.tuesday...east winds 5 to 10 knots, becoming northeast in the
afternoon. seas 2 to 3 feet. scattered showers in the afternoon.
.tuesday night...northeast winds 10 to 15 knots. seas 2 to 3 feet.
scattered showers.
.wednesday...northeast winds 10 to 15 knots. seas 2 to 3 feet.
scattered showers in the afternoon.
.wednesday night...northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. seas 2 to 3 feet.
winds and seas higher in and near thunderstorms.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/18/2026 4:14 AM America/Puerto_Rico.
Valid through 4/18/2026 5:15 PM America/Puerto_Rico.
fzca52 tjsj 180814
cwfsju
expires:202604182115;;571046
coastal waters forecast
national weather service san juan pr
414 am ast sat apr 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-
414 am ast sat apr 18 2026
.today...east winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots early this afternoon, then diminishing to 5 to
10 knots late. seas 2 to 3 feet. wave detail: southeast 2 feet at
6 seconds and north 1 foot at 8 seconds. scattered showers with
isolated thunderstorms this afternoon.
.tonight...east winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 2 feet at 6 seconds and north 1 foot at 7 seconds.
scattered showers in the evening.
.sunday...east winds 5 to 10 knots, diminishing to around 5 knots in
the afternoon. seas around 2 feet. wave detail: southeast 2 feet at
6 seconds and north 1 foot at 7 seconds. scattered showers.
.sunday night...east winds around 5 knots. seas around 2 feet. wave
detail: southeast 2 feet at 6 seconds and north 1 foot at 7 seconds.
.monday...east winds around 5 knots, becoming southeast with gusts
up to 20 knots in the afternoon. seas around 2 feet. wave detail:
southeast 2 feet at 6 seconds and north 1 foot at 6 seconds.
scattered showers in the afternoon.
.monday night...east winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 2 feet at 6 seconds and north 1 foot at 7 seconds.
scattered showers.
.tuesday...east winds around 5 knots, becoming southeast in the
afternoon. seas around 2 feet. scattered showers in the afternoon.
.tuesday night...northeast winds 10 to 15 knots, becoming east 5 to
10 knots after midnight. seas around 2 feet. scattered showers.
.wednesday...southeast winds around 5 knots. seas around 2 feet.
scattered showers in the afternoon.
.wednesday night...east winds 5 to 10 knots. seas around 2 feet.
winds and seas higher in and near thunderstorms.
$$
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