(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:45 PM America/Puerto_Rico.
Valid through 7/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182045
cwfsju
expires:202607190930;;195758
coastal waters forecast
national weather service san juan pr
445 pm 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.
amz712-190930-
coastal waters of northern puerto rico out 10 nm-
445 pm ast sat jul 18 2026
...small craft should exercise caution...
.tonight...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: east 4 feet at 7 seconds and northeast 1 foot at 8 seconds.
isolated showers early this evening, then scattered showers late
this evening. isolated showers after midnight.
.sunday...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 4 to 5 feet, occasionally to 6 feet. wave detail:
northeast 5 feet at 8 seconds.
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. gusts up to 30 knots. seas 4 to 5 feet,
occasionally to 6 feet. wave detail: northeast 5 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 5 feet, occasionally to 6 feet.
wave detail: northeast 4 feet at 7 seconds.
.tuesday...northeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
wave detail: northeast 3 feet at 7 seconds.
.tuesday night...northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east 5 to 10 knots after midnight. seas around
3 feet.
.wednesday...east winds 5 to 10 knots, increasing to 15 to 20 knots
in the afternoon. seas around 3 feet.
.wednesday night...east winds 10 to 15 knots, becoming southeast
5 to 10 knots after midnight. seas around 3 feet.
.thursday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.thursday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 3 to 4 feet, occasionally to 5 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:45 PM America/Puerto_Rico.
Valid through 7/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182045
cwfsju
expires:202607190930;;195763
coastal waters forecast
national weather service san juan pr
445 pm 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.
amz735-190930-
coastal waters of southern puerto rico out 10 nm-
445 pm ast sat jul 18 2026
.tonight...east winds 10 to 15 knots with gusts up to 25 knots. seas
4 to 5 feet, occasionally to 6 feet. wave detail: east 4 feet at
7 seconds. isolated showers this evening.
.sunday...east winds 10 to 15 knots, increasing to 15 to 20 knots in
the afternoon. seas 4 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 4 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 15 to 20 knots, becoming northeast 10 to
15 knots after midnight. seas 3 to 4 feet, occasionally to 5 feet.
wave detail: east 4 feet at 7 seconds.
.tuesday...east winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: southeast 3 feet at 6 seconds.
.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.
.thursday...east winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet.
.thursday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:45 PM America/Puerto_Rico.
Valid through 7/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182045
cwfsju
expires:202607190930;;195764
coastal waters forecast
national weather service san juan pr
445 pm 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.
amz741-190930-
mona passage southward to 17n-
445 pm ast sat jul 18 2026
...small craft should exercise caution...
.tonight...east winds 10 to 15 knots, increasing to 15 to 20 knots
late this evening and overnight. seas 4 to 5 feet, occasionally to
6 feet. wave detail: east 5 feet at 7 seconds. isolated showers this
evening. scattered showers after midnight, then isolated showers
late.
.sunday...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.
.sunday night...east winds 15 to 20 knots with gusts up to 25 knots.
seas 4 to 6 feet, occasionally to 8 feet. wave detail: east 5 feet
at 7 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: 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 5 feet
at 7 seconds. scattered showers.
.tuesday...northeast 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 7 seconds.
.tuesday night...east winds 5 to 10 knots with gusts up to 20 knots.
seas 3 to 4 feet, occasionally to 5 feet. scattered showers.
.wednesday...east winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. seas around 3 feet.
.wednesday night...east winds 10 to 15 knots. seas around 3 feet.
.thursday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.thursday night...east winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 3 to 4 feet, occasionally to 5 feet.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:45 PM America/Puerto_Rico.
Valid through 7/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182045
cwfsju
expires:202607190930;;195765
coastal waters forecast
national weather service san juan pr
445 pm 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.
amz742-190930-
coastal waters of northwestern puerto rico out 10 nm-
445 pm ast sat jul 18 2026
...small craft should exercise caution...
.tonight...east winds 15 to 20 knots, diminishing to 10 to 15 knots
after midnight. seas 2 to 4 feet, occasionally to 5 feet. wave
detail: east 3 feet at 7 seconds. isolated showers early this
evening.
.sunday...northeast 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. 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. gusts up to 25 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northeast 3 feet at 7 seconds.
scattered showers in the afternoon.
.monday night...northeast winds 15 to 20 knots, becoming east 10 to
15 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
wave detail: northeast 3 feet at 4 seconds and southeast 3 feet at
7 seconds.
.tuesday...northeast winds 10 to 15 knots with gusts up to 20 knots.
seas 2 to 3 feet. wave detail: east 3 feet at 5 seconds. numerous
showers in the afternoon.
.tuesday night...northeast winds 5 to 10 knots. 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.
.thursday...east winds 5 to 10 knots. seas 2 to 3 feet. numerous
showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas 2 to 3 feet.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 7/18/2026 4:45 PM America/Puerto_Rico.
Valid through 7/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182045
cwfsju
expires:202607190930;;195766
coastal waters forecast
national weather service san juan pr
445 pm 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.
amz745-190930-
coastal waters of southwestern puerto rico out 10 nm-
445 pm ast sat jul 18 2026
.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
southeast 3 feet at 7 seconds. scattered showers early this evening.
.sunday...east winds around 5 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: southeast 2 feet at 7 seconds.
.monday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
south 2 feet at 7 seconds.
.monday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: southeast 2 feet at 7 seconds.
.tuesday...northeast winds 5 to 10 knots, becoming north in the
afternoon. seas 2 to 3 feet. wave detail: northeast 1 foot at
5 seconds. 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 10 to 15 knots. seas around 2 feet.
.thursday...east winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. seas 2 to 3 feet.
.thursday night...east winds 10 to 15 knots. seas 2 to 3 feet.
$$
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