(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 4:16 PM America/Puerto_Rico.
Valid through 6/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182016
cwfsju
expires:202606190930;;977010
coastal waters forecast
national weather service san juan pr
416 pm ast thu jun 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-
416 pm ast thu jun 18 2026
...small craft should exercise caution...
.tonight...east winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 25 knots late this
evening and overnight. seas 3 to 5 feet, occasionally to 6 feet.
wave detail: east 4 feet at 6 seconds and northeast 1 foot at
10 seconds. isolated showers early this evening, then scattered
showers late this evening and early morning. isolated showers late.
.friday...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 3 to 5 feet, occasionally to 6 feet. wave detail:
east 4 feet at 6 seconds and northeast 1 foot at 11 seconds.
.friday night...east winds 15 to 20 knots, diminishing to 5 to
10 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
wave detail: east 4 feet at 6 seconds and northeast 1 foot at
11 seconds. scattered showers after midnight.
.saturday...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 3 to 5 feet, occasionally to 6 feet. wave detail:
east 5 feet at 7 seconds and northeast 1 foot at 11 seconds.
.saturday night...east winds 15 to 20 knots with gusts up to
30 knots, diminishing to 10 to 15 knots with gusts up to 20 knots
after midnight. seas 4 to 5 feet, occasionally to 6 feet. wave
detail: east 5 feet at 6 seconds and northeast 1 foot at 11 seconds.
numerous 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 3 to 5 feet, occasionally to 6 feet. wave detail:
east 5 feet at 6 seconds and northeast 1 foot at 11 seconds.
.sunday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. gusts up to 30 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.monday...east winds 15 to 20 knots, increasing to 20 to 25 knots in
the afternoon. seas 4 to 5 feet, occasionally to 6 feet. scattered
showers in the afternoon.
.monday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet.
.tuesday...east winds 15 to 20 knots. seas 4 to 5 feet, occasionally
to 6 feet.
.tuesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 4:16 PM America/Puerto_Rico.
Valid through 6/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182016
cwfsju
expires:202606190930;;977015
coastal waters forecast
national weather service san juan pr
416 pm ast thu jun 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-
416 pm ast thu jun 18 2026
...small craft should exercise caution...
.tonight...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: east 4 feet at 6 seconds. scattered showers late this
evening and overnight.
.friday...east winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave
detail: east 4 feet at 6 seconds. scattered showers in the morning.
.friday 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.
.saturday...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.
.saturday 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: east 4 feet at 7 seconds. scattered showers after
midnight.
.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 15 to 20 knots with gusts up to 30 knots.
seas 4 to 5 feet, occasionally to 6 feet.
.monday...east winds 15 to 20 knots. seas 4 to 5 feet, occasionally
to 6 feet. scattered showers in the afternoon.
.monday night...east winds 15 to 20 knots. seas 4 to 5 feet,
occasionally to 6 feet. scattered showers.
.tuesday...east winds 15 to 20 knots. seas 4 to 6 feet, occasionally
to 8 feet.
.tuesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 4 to 5 feet, occasionally to 6 feet.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 4:16 PM America/Puerto_Rico.
Valid through 6/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182016
cwfsju
expires:202606190930;;977016
coastal waters forecast
national weather service san juan pr
416 pm ast thu jun 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-
416 pm ast thu jun 18 2026
...small craft should exercise caution...
.tonight...east winds 15 to 20 knots with gusts up to 25 knots. seas
3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet at
6 seconds and northeast 1 foot at 10 seconds. scattered showers with
isolated thunderstorms early this evening, then isolated showers
late this evening. numerous showers after midnight.
.friday...east winds 15 to 20 knots with gusts up to 25 knots. seas
3 to 5 feet, occasionally to 6 feet. wave detail: east 5 feet at
6 seconds and northeast 1 foot at 10 seconds. scattered showers in
the morning.
.friday 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 and northeast 1 foot at 11 seconds.
.saturday...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 and northeast 1 foot at 11 seconds. numerous showers in
the afternoon.
.saturday night...east winds 15 to 20 knots with gusts up to
30 knots. seas 4 to 6 feet, occasionally to 8 feet. wave detail:
east 5 feet at 7 seconds and northeast 1 foot at 11 seconds.
scattered showers after midnight.
.sunday...east winds 15 to 20 knots with gusts up to 25 knots. seas
4 to 6 feet, occasionally to 8 feet. wave detail: east 6 feet at
7 seconds and northeast 1 foot at 11 seconds. scattered showers in
the afternoon.
.sunday night...east winds 15 to 20 knots with gusts up to 30 knots.
seas 4 to 6 feet, occasionally to 8 feet. scattered showers.
.monday...east winds 15 to 20 knots. seas 4 to 6 feet, occasionally
to 8 feet. scattered showers in the morning, then numerous showers
in the afternoon.
.monday night...east winds 15 to 20 knots. seas 5 to 7 feet,
occasionally to 9 feet. scattered showers.
.tuesday...east winds 15 to 20 knots. seas 5 to 7 feet, occasionally
to 9 feet.
.tuesday night...east winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet.
winds and seas higher in and near thunderstorms.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 4:16 PM America/Puerto_Rico.
Valid through 6/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182016
cwfsju
expires:202606190930;;977017
coastal waters forecast
national weather service san juan pr
416 pm ast thu jun 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-
416 pm ast thu jun 18 2026
.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
east 2 feet at 6 seconds and northeast 1 foot at 10 seconds.
scattered showers with isolated thunderstorms early this evening,
then isolated showers late this evening.
.friday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
northeast 2 feet at 6 seconds and northeast 1 foot at 10 seconds.
showers in the afternoon.
.friday night...east winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: east 3 feet at 6 seconds and northeast 1 foot at 11 seconds.
.saturday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
east 3 feet at 7 seconds and northeast 1 foot at 10 seconds.
numerous showers in the afternoon.
.saturday night...east winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. seas 2 to 3 feet. wave detail: northeast
3 feet at 6 seconds and northeast 1 foot at 11 seconds.
.sunday...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
northeast 3 feet at 6 seconds and northeast 1 foot at 11 seconds.
numerous showers in the afternoon.
.sunday night...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. seas 2 to 4 feet,
occasionally to 5 feet. scattered showers.
.monday...east winds 10 to 15 knots. seas 2 to 3 feet. numerous
showers in the afternoon.
.monday night...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet. scattered showers.
.tuesday...east winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. seas 2 to 4 feet, occasionally to 5 feet. numerous
showers in the afternoon.
.tuesday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
winds and seas higher in and near thunderstorms.
$$
(5/5)
Latest Coastal Waters Forecast by TJSJ
Issued 6/18/2026 4:16 PM America/Puerto_Rico.
Valid through 6/19/2026 5:30 AM America/Puerto_Rico.
fzca52 tjsj 182016
cwfsju
expires:202606190930;;977018
coastal waters forecast
national weather service san juan pr
416 pm ast thu jun 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-
416 pm ast thu jun 18 2026
.tonight...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots with gusts up to 20 knots after
midnight. seas around 2 feet. wave detail: southeast 2 feet at
6 seconds. isolated showers early this evening.
.friday...east winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. seas 2 to 3 feet. wave detail: southeast
3 feet at 5 seconds. showers in the afternoon.
.friday night...east winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots after midnight. seas 2 to 3 feet. wave
detail: southeast 3 feet at 6 seconds.
.saturday...east winds 10 to 15 knots with gusts up to 20 knots.
seas 2 to 3 feet. wave detail: southeast 2 feet at 7 seconds.
scattered showers in the afternoon.
.saturday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 2 to 3 feet. wave detail: southeast 2 feet at
6 seconds.
.sunday...east winds 10 to 15 knots with gusts up to 25 knots. seas
2 to 3 feet. wave detail: southeast 3 feet at 6 seconds.
.sunday night...east winds 15 to 20 knots with gusts up to 30 knots,
diminishing to 10 to 15 knots with gusts up to 20 knots after
midnight. seas 2 to 4 feet, occasionally to 5 feet. scattered
showers.
.monday...east winds 15 to 20 knots. seas 2 to 4 feet, occasionally
to 5 feet. scattered showers in the afternoon.
.monday night...east winds 15 to 20 knots, diminishing to 5 to
10 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
.tuesday...east winds 5 to 10 knots, becoming southeast in the
afternoon. seas 2 to 3 feet. scattered showers in the afternoon.
.tuesday night...east winds 5 to 10 knots. seas 2 to 3 feet.
$$
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