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27NM S San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 8:49 pm EDT Sep 17, 2026
Forecast Valid: 9pm EDT Sep 17, 2026-6pm EDT Sep 24, 2026

Tonight

E wind around 8 kt. Scattered showers, mainly before 3am. Seas around 3 ft.

Friday

E wind 8 to 10 kt. Scattered showers, mainly before 3pm. Seas around 3 ft.

Friday Night

ENE wind around 8 kt. Scattered showers, mainly after midnight. Seas 2 to 3 ft.

Saturday

ESE wind 6 to 9 kt. Scattered showers, mainly after noon. Seas around 2 ft.

Saturday Night

E wind around 6 kt. Showers likely, mainly before midnight. Seas around 2 ft.

Sunday

ESE wind 6 to 8 kt. Scattered showers, mainly after noon. Seas around 2 ft.

Sunday Night

E wind around 6 kt. Mostly clear. Seas around 2 ft.

Monday

ESE wind 6 to 8 kt. Sunny. Seas around 2 ft.

Monday Night

E wind around 7 kt. Partly cloudy. 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.