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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 86 °F
ENE 17kt
3-4ft
Tonight
Low: 81 °F
E 11kt
3-4ft
Monday
High: 86 °F
E 15kt
3ft
Monday Night
Low: 80 °F
E 9kt
3ft
Tuesday
High: 85 °F
E 16kt
3ft
Tuesday Night
Low: 80 °F
E 9kt
3ft
Wednesday
High: 88 °F
E 16kt
3ft
Wednesday Night
Low: 81 °F
E 14kt
3ft
Thursday
High: 88 °F
E 19kt
3-4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:39 am EDT Aug 9, 2026
Forecast Valid: 9am EDT Aug 9, 2026-6pm EDT Aug 15, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

ENE wind 14 to 17 kt, with gusts as high as 23 kt. Isolated showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Seas 3 to 4 ft.

Tonight

E wind 8 to 11 kt. Isolated showers before 9pm, then isolated showers after midnight. Seas 3 to 4 ft.

Monday

E wind 10 to 15 kt, with gusts as high as 21 kt. Isolated showers before 9am, then isolated showers after noon. Seas around 3 ft.

Monday Night

E wind around 9 kt. Isolated showers. Seas around 3 ft.

Tuesday

E wind 11 to 16 kt, with gusts as high as 22 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.

Tuesday Night

E wind 6 to 9 kt. Isolated showers. Seas around 3 ft.

Wednesday

E wind 9 to 16 kt, with gusts as high as 22 kt. Scattered showers. Seas around 3 ft.

Wednesday Night

E wind 11 to 14 kt. Scattered showers. Seas around 3 ft.

Thursday

E wind 14 to 19 kt, with gusts as high as 25 kt. Sunny. Seas 3 to 4 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.