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4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:44 pm EST Jan 15, 2026
Forecast Valid: 8pm EST Jan 15, 2026-6pm EST Jan 22, 2026

Tonight

Variable winds 5 kt or less. Isolated showers between 11pm and 2am. Seas 3 to 4 ft.

Friday

E wind 6 to 13 kt. Scattered showers, mainly after 11am. Seas around 3 ft.

Friday Night

E wind 10 to 12 kt. Scattered showers before 2am, then isolated showers after 5am. Seas around 3 ft.

Saturday

E wind 10 to 17 kt. Showers likely, mainly between 8am and 11am. Seas 3 to 4 ft.

Saturday Night

E wind 11 to 13 kt. Scattered showers. Seas around 5 ft.

Sunday

E wind 11 to 15 kt. Scattered showers, mainly before 11am. Seas 5 to 6 ft.

Sunday Night

E wind 8 to 11 kt. Partly cloudy. Seas around 5 ft.

M.L.King Day

E wind 8 to 14 kt. Scattered showers. Seas 4 to 5 ft.

Monday Night

E wind 8 to 10 kt. Scattered showers. Seas around 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.