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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 84 °F
E 19kt
5ft
Tonight
Low: 83 °F
E 14kt
5ft
Sunday
High: 84 °F
E 15kt
5ft
Sunday Night
Low: 83 °F
E 11kt
4ft
Monday
High: 84 °F
E 14kt
3ft
Monday Night
Low: 83 °F
E 10kt
3ft
Tuesday
High: 84 °F
ENE 14kt
2ft
Tuesday Night
Low: 83 °F
E 9kt
2ft
Wednesday
High: 84 °F
ENE 13kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:34 pm EDT Aug 15, 2026
Forecast Valid: 2pm EDT Aug 15, 2026-6pm EDT Aug 21, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

This Afternoon

E wind around 19 kt, with gusts as high as 26 kt. Scattered showers, mainly after 3pm. Seas around 5 ft.

Tonight

E wind 11 to 14 kt. Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Seas around 5 ft.

Sunday

E wind 13 to 15 kt, with gusts as high as 21 kt. Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Seas around 5 ft.

Sunday Night

E wind 9 to 11 kt. Isolated showers between midnight and 3am. Seas around 4 ft.

Monday

E wind 10 to 14 kt, with gusts as high as 20 kt. Isolated showers. Seas around 3 ft.

Monday Night

E wind 5 to 10 kt. Isolated showers after midnight. Seas around 3 ft.

Tuesday

ENE wind 6 to 14 kt. Scattered showers after noon. Seas around 2 ft.

Tuesday Night

E wind 6 to 9 kt. Clear. Seas around 2 ft.

Wednesday

ENE wind 8 to 13 kt. Mostly sunny. 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.