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San Juan, PR Local Forecast Office

31NM ENE Charlotte Amalie VI

Marine Point Forecast

[NOTICE]

Overnight
Low: 77 °F
NE 9kt
3ft
Monday
High: 85 °F
E 9kt
3ft
Monday Night
Low: 77 °F
ENE 10kt
3ft
Tuesday
High: 85 °F
E 8kt
3ft
Tuesday Night
Low: 77 °F
E 13kt
2ft
Wednesday
High: 85 °F
E 15kt
3ft
Wednesday Night
Low: 77 °F
E 16kt
3ft
Thursday
High: 85 °F
E 18kt
3-4ft
Thursday Night
Low: 77 °F
E 18kt
3-4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:53 pm EDT Mar 22, 2026
Forecast Valid: 12am EDT Mar 23, 2026-6pm EDT Mar 29, 2026

View Nearby Observations

Detailed Forecast

Overnight

NE wind around 9 kt. Isolated showers, then showers likely and possibly a thunderstorm after 3am. Seas around 3 ft.

Monday

E wind 7 to 9 kt. Scattered showers before 9am, then showers likely and possibly a thunderstorm between 9am and 3pm, then scattered showers after 3pm. Seas around 3 ft.

Monday Night

ENE wind around 10 kt. Scattered showers. Seas around 3 ft.

Tuesday

E wind around 8 kt. Scattered showers. Seas around 3 ft.

Tuesday Night

E wind 10 to 13 kt. Scattered showers. Seas around 2 ft.

Wednesday

E wind 13 to 15 kt. Scattered showers. Seas around 3 ft.

Wednesday Night

E wind around 16 kt, with gusts as high as 22 kt. Scattered showers. Seas around 3 ft.

Thursday

E wind around 18 kt, with gusts as high as 24 kt. Mostly sunny. Seas 3 to 4 ft.

Thursday Night

E wind around 18 kt, with gusts as high as 25 kt. Partly cloudy. Seas 3 to 4 ft.

Winds and seas higher in and near thunderstorms.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.