(1/4)
Latest Coastal Waters Forecast by TJSJ
Issued 4/21/2026 3:46 AM America/Puerto_Rico.
Valid through 4/21/2026 4:30 PM America/Puerto_Rico.
fzca52 tjsj 210746
cwfsju
expires:202604212030;;733905
coastal waters forecast
national weather service san juan pr
346 am ast tue apr 21 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.
amz712-212030-
coastal waters of northern puerto rico out 10 nm-
346 am ast tue apr 21 2026
.today...east winds 5 to 10 knots, increasing to 10 to 15 knots with
gusts up to 20 knots this afternoon. seas around 4 feet,
occasionally to 5 feet. wave detail: east 4 feet at 8 seconds and
northeast 2 feet at 11 seconds. isolated showers.
.tonight...east winds 5 to 10 knots. seas 3 to 4 feet, occasionally
to 5 feet. wave detail: east 3 feet at 8 seconds and northeast
1 foot at 11 seconds. scattered showers in the evening.
.wednesday...east winds 5 to 10 knots. seas around 3 feet. wave
detail: northeast 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 6 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. wave detail: north 5 feet at 9 seconds and
east 2 feet at 8 seconds. scattered showers.
.friday...east winds 5 to 10 knots. seas 4 to 5 feet, occasionally
to 6 feet. numerous showers in the afternoon.
.friday night...southeast winds 5 to 10 knots. seas 4 to 5 feet,
occasionally to 6 feet.
.saturday...southeast winds 5 to 10 knots, becoming east in the
afternoon. seas around 4 feet, occasionally to 5 feet. scattered
showers in the morning, then numerous showers in the afternoon.
.saturday night...southeast winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
(2/4)
Latest Coastal Waters Forecast by TJSJ
Issued 4/21/2026 3:46 AM America/Puerto_Rico.
Valid through 4/21/2026 4:30 PM America/Puerto_Rico.
fzca52 tjsj 210746
cwfsju
expires:202604212030;;733910
coastal waters forecast
national weather service san juan pr
346 am ast tue apr 21 2026
puerto rico and the u.s. virgin islands waters
seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.
amz735-212030-
coastal waters of southern puerto rico out 10 nm-
346 am ast tue apr 21 2026
.today...east winds 5 to 10 knots. seas 2 to 4 feet, occasionally to
5 feet. wave detail: east 3 feet at 7 seconds. isolated showers.
.tonight...northeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: east 3 feet at 7 seconds.
.wednesday...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: east 2 feet at 6 seconds.
.wednesday night...northeast winds 5 to 10 knots. seas 2 to 3 feet.
wave detail: east 2 feet at 6 seconds.
.thursday...east winds 5 to 10 knots. seas around 2 feet. wave
detail: east 2 feet at 5 seconds. scattered showers in the
afternoon.
.thursday night...east winds 5 to 10 knots. seas around 2 feet. wave
detail: east 2 feet at 5 seconds.
.friday...east winds 5 to 10 knots. seas around 2 feet.
.friday night...east winds 5 to 10 knots. seas around 2 feet.
.saturday...southeast winds 5 to 10 knots. seas around 2 feet.
scattered showers in the afternoon.
.saturday night...southeast winds 5 to 10 knots. seas around 2 feet.
$$
(3/4)
Latest Coastal Waters Forecast by TJSJ
Issued 4/21/2026 3:46 AM America/Puerto_Rico.
Valid through 4/21/2026 4:30 PM America/Puerto_Rico.
fzca52 tjsj 210746
cwfsju
expires:202604212030;;733912
coastal waters forecast
national weather service san juan pr
346 am ast tue apr 21 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.
amz742-212030-
coastal waters of northwestern puerto rico out 10 nm-
346 am ast tue apr 21 2026
.today...east winds 5 to 10 knots, diminishing to around 5 knots
late this morning, then becoming north this afternoon. seas 2 to
3 feet. wave detail: northeast 2 feet at 7 seconds and northeast
1 foot at 11 seconds. scattered showers with isolated thunderstorms
this afternoon.
.tonight...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 5 to 10 knots, becoming north 10 to
15 knots with gusts up to 20 knots in the afternoon. seas 2 to
3 feet. wave detail: northeast 2 feet at 4 seconds and northeast
1 foot at 11 seconds.
.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
3 feet. wave detail: north 3 feet at 11 seconds and northeast 2 feet
at 4 seconds.
.thursday...east winds 5 to 10 knots. seas 4 to 6 feet, occasionally
to 8 feet. wave detail: north 5 feet at 10 seconds. scattered
showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas 3 to 5 feet,
occasionally to 6 feet. wave detail: north 5 feet at 9 seconds.
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 around 5 knots. seas 2 to 4 feet,
occasionally to 5 feet.
.saturday...southeast winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. seas 2 to 4 feet, occasionally to 5 feet.
scattered showers in the afternoon.
.saturday night...southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. seas 2 to 4 feet, occasionally to
5 feet.
winds and seas higher in and near thunderstorms.
$$
(4/4)
Latest Coastal Waters Forecast by TJSJ
Issued 4/21/2026 3:46 AM America/Puerto_Rico.
Valid through 4/21/2026 4:30 PM America/Puerto_Rico.
fzca52 tjsj 210746
cwfsju
expires:202604212030;;733913
coastal waters forecast
national weather service san juan pr
346 am ast tue apr 21 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.
amz745-212030-
coastal waters of southwestern puerto rico out 10 nm-
346 am ast tue apr 21 2026
.today...east winds 5 to 10 knots, becoming south early this
afternoon, then becoming northeast around 5 knots late. seas around
2 feet. wave detail: southeast 2 feet at 6 seconds. numerous showers
with isolated thunderstorms early this afternoon. scattered showers
with isolated thunderstorms late.
.tonight...northeast winds 5 to 10 knots. seas around 2 feet. wave
detail: northeast 2 feet at 6 seconds.
.wednesday...east winds around 5 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 5 seconds.
.thursday...east winds 5 to 10 knots. seas 2 to 4 feet, occasionally
to 5 feet. wave detail: northwest 4 feet at 10 seconds and east
1 foot at 4 seconds. scattered showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northwest 4 feet at 10 seconds.
.friday...southeast winds 5 to 10 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 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. seas 2 to 3 feet.
.saturday night...southeast winds 5 to 10 knots. seas 2 to 3 feet.
winds and seas higher in and near thunderstorms.
$$
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