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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:45 am EDT Aug 10, 2026
Forecast Valid: 9am EDT Aug 10, 2026-6pm EDT Aug 16, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

E wind 13 to 16 kt. Isolated showers between noon and 3pm. Seas 3 to 4 ft.

Tonight

E wind around 10 kt. Scattered showers after midnight. Seas around 3 ft.

Tuesday

E wind 11 to 15 kt, with gusts as high as 23 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 3 ft.

Tuesday Night

ESE wind 7 to 10 kt. Isolated showers. Seas around 3 ft.

Wednesday

E wind 9 to 16 kt, with gusts as high as 24 kt. Scattered showers, mainly after noon. Seas around 3 ft.

Wednesday Night

E wind 9 to 11 kt. Scattered showers, mainly before midnight. Seas around 3 ft.

Thursday

E wind 13 to 17 kt, with gusts as high as 25 kt. Sunny. Seas 3 to 4 ft.

Thursday Night

E wind 13 to 15 kt, with gusts as high as 22 kt. Clear. Seas around 4 ft.

Friday

E wind around 18 kt, with gusts as high as 27 kt. Sunny. Seas 4 to 5 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.