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San Juan, PR Local Forecast Office

31NM ENE Charlotte Amalie VI

Marine Point Forecast

[NOTICE]

Overnight
Low: 82 °F
SW 10kt
2ft
Friday
High: 82 °F
SW 14kt
2ft
Friday Night
Low: 82 °F
SW 14kt
2ft
Saturday
High: 82 °F
SW 13kt
2-3ft
Saturday Night
Low: 82 °F
SW 14kt
3ft
Sunday
High: 84 °F
WSW 11kt
3ft
Sunday Night
Low: 82 °F
WSW 10kt
3ft
Monday
High: 84 °F
WSW 9kt
2-3ft
Monday Night
Low: 82 °F
SW 10kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:44 pm EST Nov 5, 2026
Forecast Valid: 12am EST Nov 6, 2026-6pm EST Nov 12, 2026

View Nearby Observations

Detailed Forecast

Overnight

SW wind around 10 kt. Scattered showers and thunderstorms. Seas around 2 ft.

Friday

SW wind 10 to 14 kt. Scattered showers. Seas around 2 ft.

Friday Night

SW wind 12 to 14 kt. Scattered showers before 8pm, then scattered showers and thunderstorms between 8pm and 5am, then showers likely and possibly a thunderstorm after 5am. Seas around 2 ft.

Saturday

SW wind around 13 kt. Showers likely and possibly a thunderstorm before 8am, then scattered showers and thunderstorms between 8am and 11am, then scattered showers after 11am. Seas 2 to 3 ft.

Saturday Night

SW wind 12 to 14 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.

Sunday

WSW wind 8 to 11 kt. Scattered showers. Seas around 3 ft.

Sunday Night

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

Monday

WSW wind 6 to 9 kt. Mostly sunny. Seas 2 to 3 ft.

Monday Night

SW wind 6 to 10 kt becoming SSE after midnight. Partly cloudy. Seas around 2 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.