(1/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/30/2026 3:45 AM America/Puerto_Rico.
Valid through 8/30/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 300745
cwfsju
expires:202608302015;;596070
coastal waters forecast
national weather service san juan pr
345 am ast sun aug 30 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.
amz712-302015-
coastal waters of northern puerto rico out 10 nm-
345 am ast sun aug 30 2026
...small craft advisory in effect from this evening through late
tonight...
.today...northeast winds 10 to 15 knots, becoming east 5 to 10 knots
late. gusts up to 25 knots. seas around 5 feet, occasionally to
6 feet. wave detail: northeast 5 feet at 9 seconds. isolated
thunderstorms.
.tonight...southeast winds 10 to 15 knots with gusts up to 30 knots.
seas 5 to 7 feet, occasionally to 8 feet, building to 5 to 8 feet,
occasionally to 10 feet after midnight. wave detail: northeast
5 feet at 8 seconds, becoming northeast 7 feet at 10 seconds.
numerous showers.
.monday...east winds 10 to 15 knots with gusts up to 20 knots. seas
5 to 6 feet, occasionally to 8 feet. wave detail: northeast 6 feet
at 10 seconds. scattered showers in the morning, then numerous
showers in the afternoon.
.monday night...east winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots after midnight. seas 4 to 5 feet,
occasionally to 6 feet. wave detail: east 5 feet at 10 seconds.
.tuesday...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
9 seconds. scattered showers.
.tuesday night...east winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: northeast 4 feet at 9 seconds.
scattered showers.
.wednesday...east winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. seas 3 to 4 feet, occasionally to 5 feet.
scattered showers.
.wednesday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.thursday...east winds 10 to 15 knots. seas 2 to 3 feet. scattered
showers in the afternoon.
.thursday night...east winds 10 to 15 knots. seas around 3 feet.
winds and seas higher in and near thunderstorms.
$$
(2/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/30/2026 3:45 AM America/Puerto_Rico.
Valid through 8/30/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 300745
cwfsju
expires:202608302015;;596075
coastal waters forecast
national weather service san juan pr
345 am ast sun aug 30 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.
amz735-302015-
coastal waters of southern puerto rico out 10 nm-
345 am ast sun aug 30 2026
.today...northeast winds 5 to 10 knots with gusts up to 20 knots,
becoming southeast this afternoon. seas 2 to 4 feet, occasionally to
5 feet. wave detail: east 4 feet at 7 seconds. isolated
thunderstorms. scattered showers until late afternoon, then numerous
showers late.
.tonight...southeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
wave detail: southeast 3 feet at 6 seconds. showers.
.monday...southeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. seas 3 to 5 feet, occasionally to 6 feet.
wave detail: southeast 3 feet at 6 seconds. scattered showers.
.monday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: east 4 feet
at 10 seconds. scattered showers.
.tuesday...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 7 seconds and east 3 feet at 9 seconds. scattered showers in the
morning.
.tuesday 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 4 feet at 7 seconds.
.wednesday...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.wednesday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
.thursday...east winds 10 to 15 knots. seas around 3 feet.
.thursday night...east winds 10 to 15 knots. seas 2 to 3 feet.
winds and seas higher in and near thunderstorms.
$$
(3/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/30/2026 3:45 AM America/Puerto_Rico.
Valid through 8/30/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 300745
cwfsju
expires:202608302015;;596076
coastal waters forecast
national weather service san juan pr
345 am ast sun aug 30 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.
amz741-302015-
mona passage southward to 17n-
345 am ast sun aug 30 2026
.today...northeast 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 and northeast 1 foot at 10 seconds. isolated showers
this morning. isolated thunderstorms. scattered showers this
afternoon.
.tonight...southeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 3 to 5 feet, occasionally to 6 feet.
wave detail: southeast 4 feet at 5 seconds. numerous showers.
.monday...southeast winds 15 to 20 knots with gusts up to 25 knots.
seas around 5 feet, occasionally to 6 feet. wave detail: southeast
5 feet at 6 seconds and northeast 2 feet at 9 seconds. scattered
showers in the morning.
.monday night...east winds 10 to 15 knots with gusts up to 25 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: southeast
5 feet at 6 seconds and northeast 4 feet at 10 seconds. scattered
showers after midnight.
.tuesday...east winds 10 to 15 knots with gusts up to 20 knots. seas
4 to 6 feet, occasionally to 8 feet. wave detail: southeast 4 feet
at 7 seconds and northeast 4 feet at 10 seconds.
.tuesday night...east winds 10 to 15 knots with gusts up to
20 knots. seas 4 to 5 feet, occasionally to 6 feet. wave detail:
southeast 4 feet at 7 seconds and northeast 2 feet at 9 seconds.
scattered showers in the evening.
.wednesday...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet.
.wednesday night...east winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet.
.thursday...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet. scattered showers in the afternoon.
.thursday night...east winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet.
winds and seas higher in and near thunderstorms.
$$
(4/5)
Latest Coastal Waters Forecast by TJSJ
Issued 8/30/2026 3:45 AM America/Puerto_Rico.
Valid through 8/30/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 300745
cwfsju
expires:202608302015;;596077
coastal waters forecast
national weather service san juan pr
345 am ast sun aug 30 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.
amz742-302015-
coastal waters of northwestern puerto rico out 10 nm-
345 am ast sun aug 30 2026
.today...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 6 seconds and south 1 foot at 5 seconds. scattered
showers. isolated thunderstorms this afternoon.
.tonight...southeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 2 to 4 feet, occasionally to 5 feet.
wave detail: south 3 feet at 4 seconds. showers, mainly in the
evening.
.monday...southeast winds 10 to 15 knots with gusts up to 25 knots.
seas 3 to 5 feet, occasionally to 6 feet. wave detail: northeast
4 feet at 9 seconds and south 3 feet at 5 seconds. scattered showers
in the morning, then numerous showers in the afternoon.
.monday night...east winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: northeast 3 feet at 9 seconds
and south 2 feet at 5 seconds.
.tuesday...east winds 5 to 10 knots, diminishing to around 5 knots
in the afternoon. seas 2 to 3 feet. wave detail: south 2 feet at
6 seconds and northeast 2 feet at 9 seconds. scattered showers in
the afternoon.
.tuesday night...east winds around 5 knots. seas 2 to 3 feet. wave
detail: south 2 feet at 6 seconds and northeast 2 feet at 9 seconds.
scattered showers in the evening.
.wednesday...northeast winds 5 to 10 knots. seas 2 to 3 feet.
numerous showers in the afternoon.
.wednesday night...east winds 5 to 10 knots. seas 2 to 3 feet.
.thursday...northeast winds 5 to 10 knots. seas 2 to 3 feet.
numerous showers in the afternoon.
.thursday night...east winds 10 to 15 knots, diminishing to 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 8/30/2026 3:45 AM America/Puerto_Rico.
Valid through 8/30/2026 4:15 PM America/Puerto_Rico.
fzca52 tjsj 300745
cwfsju
expires:202608302015;;596078
coastal waters forecast
national weather service san juan pr
345 am ast sun aug 30 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.
amz745-302015-
coastal waters of southwestern puerto rico out 10 nm-
345 am ast sun aug 30 2026
.today...northeast winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots with gusts up to 20 knots late this
morning and early afternoon, then becoming east late. seas around
2 feet. wave detail: northwest 2 feet at 5 seconds. isolated showers
this morning, then numerous showers with isolated thunderstorms this
afternoon.
.tonight...southeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. seas 2 to 3 feet. wave detail: southeast
3 feet at 4 seconds. showers.
.monday...southeast winds 15 to 20 knots with gusts up to 25 knots.
seas 2 to 3 feet. wave detail: southeast 3 feet at 5 seconds.
scattered showers.
.monday night...east winds 10 to 15 knots with gusts up to 20 knots.
seas 2 to 3 feet. wave detail: southeast 3 feet at 5 seconds.
.tuesday...east winds 10 to 15 knots with gusts up to 20 knots. seas
2 to 3 feet. wave detail: south 2 feet at 6 seconds.
.tuesday night...east winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. seas 2 to
3 feet. wave detail: south 2 feet at 6 seconds.
.wednesday...east winds 5 to 10 knots. seas around 2 feet. scattered
showers in the afternoon.
.wednesday night...east winds 5 to 10 knots. seas around 2 feet.
.thursday...east winds 5 to 10 knots. seas around 2 feet. scattered
showers in the afternoon.
.thursday night...east winds 5 to 10 knots. seas around 2 feet.
winds and seas higher in and near thunderstorms.
$$
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