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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:41 am EDT Aug 11, 2026
Forecast Valid: 5am EDT Aug 11, 2026-6pm EDT Aug 17, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

E wind 10 to 15 kt, with gusts as high as 21 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Seas around 3 ft.

Tonight

ESE wind 7 to 11 kt. Scattered showers. Seas around 3 ft.

Wednesday

E wind 9 to 16 kt, with gusts as high as 23 kt. Scattered showers after noon. Seas around 3 ft.

Wednesday Night

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

Thursday

E wind 12 to 19 kt, with gusts as high as 27 kt. Isolated showers after noon. Seas 3 to 4 ft.

Thursday Night

E wind around 12 kt. Isolated showers. Seas around 4 ft.

Friday

E wind 16 to 18 kt, with gusts as high as 26 kt. Sunny. Seas around 5 ft.

Friday Night

E wind around 13 kt. Partly cloudy. Seas around 5 ft.

Saturday

ENE wind 12 to 17 kt, with gusts as high as 24 kt. Sunny. Seas around 5 ft.

Winds and seas higher in and near thunderstorms.

*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.