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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:37 am EDT Aug 16, 2026
Forecast Valid: 9am EDT Aug 16, 2026-6pm EDT Aug 22, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON AST TODAY...

Today

E wind 13 to 16 kt. Isolated showers before 3pm. Seas 4 to 5 ft.

Tonight

E wind 9 to 12 kt. Isolated showers between 9pm and 3am. Seas around 4 ft.

Monday

E wind 12 to 15 kt. Isolated showers before 3pm. Seas around 3 ft.

Monday Night

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

Tuesday

ENE wind 8 to 14 kt, with gusts as high as 20 kt. Scattered showers, mainly after noon. Seas 2 to 3 ft.

Tuesday Night

ESE wind around 9 kt. Clear. Seas around 2 ft.

Wednesday

E wind 9 to 14 kt. Sunny. Seas around 2 ft.

Wednesday Night

SE wind 6 to 8 kt. Scattered showers. Seas around 2 ft.

Thursday

E wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers. 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.