(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/20/2026 3:54 PM America/Puerto_Rico.
Valid through 4/21/2026 4:15 AM America/Puerto_Rico.
fzca52 tjsj 201954
cwfsju
expires:202604210815;;707656
coastal waters forecast
national weather service san juan pr
354 pm ast mon apr 20 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.
amz735-210815-
coastal waters of southern puerto rico out 10 nm-
354 pm ast mon apr 20 2026
.tonight...east winds 10 to 15 knots with gusts up to 20 knots. seas
3 to 4 feet, occasionally to 5 feet. wave detail: east 4 feet at
6 seconds. isolated showers this evening. scattered showers after
midnight, then isolated showers late.
.tuesday...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots in the afternoon. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: east 4 feet at 7 seconds.
.tuesday night...northeast winds 5 to 10 knots. seas 2 to 3 feet.
wave detail: east 3 feet at 7 seconds. scattered showers in the
evening.
.wednesday...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: east 2 feet at 6 seconds.
.wednesday night...northeast winds 5 to 10 knots. seas 2 to 3 feet.
wave detail: east 2 feet at 6 seconds.
.thursday...east winds 5 to 10 knots. seas around 2 feet. wave
detail: east 2 feet at 5 seconds. scattered showers in the
afternoon.
.thursday night...east winds 5 to 10 knots. seas around 2 feet.
.friday...east winds 5 to 10 knots. seas around 2 feet. scattered
showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas around 2 feet.
.saturday...southeast winds 5 to 10 knots. seas around 2 feet.
scattered showers in the afternoon.
.saturday night...southeast winds 5 to 10 knots. seas around 2 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/20/2026 3:54 PM America/Puerto_Rico.
Valid through 4/21/2026 4:15 AM America/Puerto_Rico.
fzca52 tjsj 201954
cwfsju
expires:202604210815;;707657
coastal waters forecast
national weather service san juan pr
354 pm ast mon apr 20 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.
amz741-210815-
mona passage southward to 17n-
354 pm ast mon apr 20 2026
.tonight...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. numerous showers early
this evening. scattered showers late this evening, then isolated
showers after midnight.
.tuesday...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots in the afternoon. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 4 feet at 7 seconds and
northeast 1 foot at 11 seconds.
.tuesday night...northeast winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. seas around 3 feet. wave detail: east
3 feet at 7 seconds and northeast 1 foot at 11 seconds. scattered
showers.
.wednesday...east winds 10 to 15 knots, becoming northeast 5 to
10 knots in the afternoon. seas around 3 feet. wave detail: east
3 feet at 7 seconds and north 1 foot at 11 seconds. scattered
showers in the afternoon.
.wednesday night...northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. seas 3 to 4 feet, occasionally to
5 feet. wave detail: northeast 3 feet at 6 seconds and north 3 feet
at 10 seconds.
.thursday...east winds 5 to 10 knots. seas 3 to 5 feet, occasionally
to 6 feet. wave detail: east 3 feet at 6 seconds and north 3 feet at
10 seconds.
.thursday night...east winds 5 to 10 knots. seas 4 to 5 feet,
occasionally to 6 feet.
.friday...east winds 5 to 10 knots. seas 3 to 5 feet, occasionally
to 6 feet. scattered showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet. scattered showers.
.saturday...southeast winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.saturday night...southeast winds around 10 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/20/2026 3:54 PM America/Puerto_Rico.
Valid through 4/21/2026 4:15 AM America/Puerto_Rico.
fzca52 tjsj 201954
cwfsju
expires:202604210815;;707658
coastal waters forecast
national weather service san juan pr
354 pm ast mon apr 20 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.
amz742-210815-
coastal waters of northwestern puerto rico out 10 nm-
354 pm ast mon apr 20 2026
.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
northeast 2 feet at 6 seconds and northeast 1 foot at 11 seconds.
scattered showers early this evening, then isolated showers late
this evening.
.tuesday...east winds 5 to 10 knots, becoming north in the
afternoon. seas 2 to 3 feet. wave detail: northeast 2 feet at
7 seconds and northeast 1 foot at 11 seconds. scattered showers in
the afternoon.
.tuesday night...northeast winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: northeast 2 feet at
6 seconds and northeast 1 foot at 11 seconds.
.wednesday...northeast winds 10 to 15 knots. seas 2 to 3 feet. wave
detail: north 2 feet at 4 seconds and northeast 1 foot at
11 seconds. scattered showers in the afternoon.
.wednesday night...northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east 5 to 10 knots after midnight. seas 2 to
4 feet, occasionally to 5 feet. wave detail: north 3 feet at
11 seconds and northeast 2 feet at 4 seconds.
.thursday...east winds 5 to 10 knots, becoming northeast in the
afternoon. seas 3 to 5 feet, occasionally to 6 feet. wave detail:
north 5 feet at 10 seconds and northeast 1 foot at 10 seconds.
scattered showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas 4 to 6 feet,
occasionally to 8 feet. scattered showers.
.friday...east winds around 5 knots. seas 3 to 5 feet, occasionally
to 6 feet. scattered showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet.
.saturday...southeast winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet. scattered showers in the afternoon.
.saturday night...southeast winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/20/2026 3:54 PM America/Puerto_Rico.
Valid through 4/21/2026 4:15 AM America/Puerto_Rico.
fzca52 tjsj 201954
cwfsju
expires:202604210815;;707659
coastal waters forecast
national weather service san juan pr
354 pm ast mon apr 20 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.
amz745-210815-
coastal waters of southwestern puerto rico out 10 nm-
354 pm ast mon apr 20 2026
.tonight...east winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this evening and early morning, 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 6 seconds.
numerous showers early this evening, then isolated showers late this
evening.
.tuesday...east winds 5 to 10 knots, becoming southeast in the
afternoon. seas around 2 feet. wave detail: east 2 feet at
6 seconds. scattered showers in the afternoon.
.tuesday night...northeast winds 5 to 10 knots. seas around 2 feet.
wave detail: northeast 2 feet at 6 seconds.
.wednesday...east winds 5 to 10 knots, becoming northwest in the
afternoon. seas around 2 feet. wave detail: north 1 foot at
3 seconds and east 1 foot at 5 seconds. scattered showers in the
afternoon.
.wednesday night...northeast winds 5 to 10 knots. seas around
2 feet. wave detail: northwest 2 feet at 8 seconds and southeast
1 foot at 6 seconds.
.thursday...east winds around 5 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northwest 4 feet at 9 seconds
and east 1 foot at 4 seconds. scattered showers in the afternoon.
.thursday night...east winds around 5 knots. seas 2 to 4 feet,
occasionally to 5 feet.
.friday...southeast winds around 5 knots. seas 2 to 4 feet,
occasionally to 5 feet. scattered showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 2 to 3 feet.
.saturday...southeast winds 10 to 15 knots. seas 2 to 3 feet.
.saturday night...southeast winds around 10 knots. seas 2 to 3 feet.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 4/20/2026 3:54 PM America/Puerto_Rico.
Valid through 4/21/2026 4:15 AM America/Puerto_Rico.
fzca52 tjsj 201954
cwfsju
expires:202604210815;;707651
coastal waters forecast
national weather service san juan pr
354 pm ast mon apr 20 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.
amz712-210815-
coastal waters of northern puerto rico out 10 nm-
354 pm ast mon apr 20 2026
.tonight...east winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots late. seas 4 to 5 feet, occasionally to
6 feet. wave detail: east 5 feet at 8 seconds and northeast 2 feet
at 11 seconds. isolated showers.
.tuesday...east winds 5 to 10 knots, becoming northeast 10 to
15 knots with gusts up to 20 knots in the afternoon. seas around
4 feet, occasionally to 5 feet. wave detail: east 4 feet at
8 seconds and northeast 2 feet at 11 seconds.
.tuesday night...east winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: northeast 3 feet at 8 seconds
and northeast 1 foot at 11 seconds. scattered showers after
midnight.
.wednesday...northeast winds 5 to 10 knots. seas around 3 feet. wave
detail: east 3 feet at 8 seconds and northeast 1 foot at 10 seconds.
.wednesday night...east winds 5 to 10 knots. seas 3 to 5 feet,
occasionally to 6 feet. wave detail: north 5 feet at 10 seconds and
northeast 3 feet at 8 seconds.
.thursday...east winds 5 to 10 knots. seas 5 to 6 feet, occasionally
to 8 feet. wave detail: north 5 feet at 10 seconds and east 2 feet
at 8 seconds.
.thursday night...east winds 5 to 10 knots. seas 5 to 6 feet,
occasionally to 8 feet. scattered showers.
.friday...east winds 5 to 10 knots. seas around 5 feet, occasionally
to 6 feet. numerous showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 4 to 5 feet,
occasionally to 6 feet.
.saturday...east winds 5 to 10 knots. seas 4 to 5 feet, occasionally
to 6 feet. numerous showers in the afternoon.
.saturday night...southeast winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
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