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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 80 °F
E 7kt⇓
2ft
Friday
High: 83 °F
E 9kt
2ft
Friday Night
Low: 80 °F
E 8kt
2ft
Saturday
High: 83 °F
E 10kt
2-3ft
Saturday Night
Low: 80 °F
E 8kt
3ft
Sunday
High: 83 °F
ESE 12kt
3ft
Sunday Night
Low: 80 °F
E 9kt
3ft
Monday
High: 83 °F
ESE 9kt
2-3ft
Monday Night
Low: 80 °F
E 8kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:38 pm EDT Apr 30, 2026
Forecast Valid: 10pm EDT Apr 30, 2026-6pm EDT May 7, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers. Seas around 2 ft.

Friday

E wind around 9 kt. Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Seas around 2 ft.

Friday Night

E wind around 8 kt. Scattered showers, mainly after midnight. Seas around 2 ft.

Saturday

E wind around 10 kt. Scattered showers. Seas 2 to 3 ft.

Saturday Night

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

Sunday

ESE wind 9 to 12 kt. Scattered showers, mainly after noon. Seas around 3 ft.

Sunday Night

E wind 7 to 9 kt. Scattered showers. Seas around 3 ft.

Monday

ESE wind around 9 kt. Scattered showers. Seas 2 to 3 ft.

Monday Night

E wind around 8 kt. Partly cloudy. Seas around 2 ft.

*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.