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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 81 °F
E 10kt
3ft
Tonight
Low: 80 °F
E 10kt
3ft
Sunday
High: 81 °F
E 11kt
3ft
Sunday Night
Low: 80 °F
E 11kt
3ft
Monday
High: 81 °F
ESE 10kt
3ft
Monday Night
Low: 80 °F
E 7kt
3ft
Tuesday
High: 81 °F
ESE 9kt
3ft
Tuesday Night
Low: 80 °F
E 8kt
3ft
Wednesday
High: 81 °F
ESE 10kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:40 am EDT Apr 4, 2026
Forecast Valid: 5am EDT Apr 4, 2026-6pm EDT Apr 10, 2026

View Nearby Observations

Detailed Forecast

Today

E wind 8 to 10 kt. Scattered showers before 9am, then scattered showers and thunderstorms between 9am and noon, then scattered showers after noon. Seas around 3 ft.

Tonight

E wind around 10 kt. Showers likely and possibly a thunderstorm before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Seas around 3 ft.

Sunday

E wind around 11 kt. Scattered showers, then showers likely and possibly a thunderstorm after 9am. Seas around 3 ft.

Sunday Night

E wind 9 to 11 kt. Scattered showers. Seas around 3 ft.

Monday

ESE wind around 10 kt. Scattered showers before noon. Seas around 3 ft.

Monday Night

E wind around 7 kt. Scattered showers. Seas around 3 ft.

Tuesday

ESE wind around 9 kt. Scattered showers. Seas around 3 ft.

Tuesday Night

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

Wednesday

ESE wind 6 to 10 kt. Scattered showers. Seas around 3 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.