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4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:54 pm EST Jan 11, 2026
Forecast Valid: 2pm EST Jan 11, 2026-6pm EST Jan 17, 2026

This Afternoon

E wind around 11 kt. Isolated showers. Seas around 4 ft.

Tonight

ESE wind 6 to 8 kt. Isolated showers before 8pm, then scattered showers after 11pm. Seas around 4 ft.

Monday

E wind 7 to 12 kt. Scattered showers, mainly before 11am. Seas around 4 ft.

Monday Night

E wind 5 to 8 kt. Scattered showers, mainly after 8pm. Seas around 3 ft.

Tuesday

Variable winds less than 5 kt becoming ENE 7 to 12 kt in the morning. Isolated showers. Seas around 3 ft.

Tuesday Night

E wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 3 ft.

Wednesday

Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Scattered showers after 11am. Seas around 3 ft.

Wednesday Night

ESE wind 6 to 9 kt. Partly cloudy. Seas around 3 ft.

Thursday

ESE wind 7 to 13 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.