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27NM S San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:43 pm EDT Sep 11, 2026
Forecast Valid: 3pm EDT Sep 11, 2026-6pm EDT Sep 17, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

This Afternoon

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

Tonight

E wind 9 to 11 kt. Isolated showers. Seas around 3 ft.

Saturday

E wind 10 to 13 kt. Isolated showers before 3pm. Seas around 3 ft.

Saturday Night

ENE wind around 10 kt. Isolated showers. Seas around 3 ft.

Sunday

E wind 11 to 13 kt. Scattered showers, mainly after noon. Seas around 3 ft.

Sunday Night

ENE wind 7 to 9 kt. Isolated showers. Seas around 3 ft.

Monday

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

Monday Night

ENE wind around 6 kt. Partly cloudy. Seas around 3 ft.

Tuesday

E wind 7 to 11 kt. Scattered showers. Seas around 3 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.