For More Weather Information:

4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:57 am EDT May 15, 2026
Forecast Valid: 5am EDT May 15, 2026-6pm EDT May 21, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

ESE wind 6 to 14 kt. Scattered showers, mainly between noon and 3pm. Seas 3 to 4 ft.

Tonight

ESE wind 6 to 8 kt. Scattered showers, mainly between midnight and 3am. Seas around 3 ft.

Saturday

E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers before 9am, then scattered showers after noon. Seas 3 to 4 ft.

Saturday Night

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

Sunday

E wind 9 to 15 kt. Scattered showers. Seas around 4 ft.

Sunday Night

E wind 9 to 11 kt. Isolated showers, then scattered showers and thunderstorms after midnight. Seas 3 to 4 ft.

Monday

E wind 12 to 15 kt. Scattered showers before noon. Seas 3 to 4 ft.

Monday Night

E wind around 9 kt. Partly cloudy. Seas around 3 ft.

Tuesday

E wind 10 to 14 kt. Scattered showers. 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.