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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:40 pm EDT Aug 9, 2026
Forecast Valid: 5pm EDT Aug 9, 2026-6pm EDT Aug 16, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Late Afternoon

E wind around 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 4 ft.

Tonight

E wind 10 to 12 kt. Isolated showers before 9pm, then isolated showers after midnight. Seas around 4 ft.

Monday

E wind 12 to 16 kt, with gusts as high as 22 kt. Isolated showers before 9am, then isolated showers after noon. Seas around 3 ft.

Monday Night

E wind around 9 kt. Scattered showers, mainly after 3am. Seas around 3 ft.

Tuesday

E wind 10 to 16 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.

Tuesday Night

ESE wind 7 to 9 kt. Isolated showers. Seas around 3 ft.

Wednesday

E wind 8 to 16 kt, with gusts as high as 22 kt. Scattered showers. Seas around 3 ft.

Wednesday Night

E wind 8 to 10 kt. Scattered showers. Seas around 3 ft.

Thursday

E wind 15 to 18 kt, with gusts as high as 24 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.