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27NM S San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:17 am EDT Jul 31, 2026
Forecast Valid: 6am EDT Jul 31, 2026-6pm EDT Aug 6, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

E wind around 12 kt. Scattered showers, mainly before noon. Seas around 3 ft.

Tonight

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

Saturday

E wind 9 to 11 kt. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.

Saturday Night

E wind around 6 kt. Isolated showers after midnight. Seas 2 to 3 ft.

Sunday

E wind around 10 kt. Scattered showers. Seas around 2 ft.

Sunday Night

E wind around 9 kt. Scattered showers, mainly after midnight. Seas 2 to 3 ft.

Monday

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

Monday Night

E wind around 9 kt. Mostly clear. Seas around 3 ft.

Tuesday

E wind 8 to 11 kt. Mostly sunny. 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.