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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:25 pm EDT Jul 18, 2026
Forecast Valid: 6pm EDT Jul 18, 2026-6pm EDT Jul 25, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tonight

E wind 9 to 13 kt. Scattered showers, mainly between 9pm and midnight. Seas around 3 ft.

Sunday

E wind 11 to 16 kt, with gusts as high as 22 kt. Isolated showers. Seas 3 to 4 ft.

Sunday Night

E wind around 10 kt. Scattered showers, mainly before midnight. Seas 3 to 4 ft.

Monday

ENE wind 10 to 16 kt, with gusts as high as 22 kt. Isolated showers. Seas around 3 ft.

Monday Night

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

Tuesday

NE wind 6 to 12 kt. Isolated showers. Seas around 2 ft.

Tuesday Night

E wind 5 to 8 kt. Scattered showers. Seas around 2 ft.

Wednesday

E wind 5 to 10 kt increasing to 11 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Sunny. Seas around 2 ft.

Wednesday Night

SE wind 6 to 9 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.