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4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:32 am EST Dec 27, 2025
Forecast Valid: 2pm EST Dec 27, 2025-6pm EST Jan 2, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

This Afternoon

ENE wind around 9 kt. Sunny. Seas around 6 ft.

Tonight

Variable winds 5 kt or less. Scattered showers, mainly after 2am. Seas around 5 ft.

Sunday

Variable winds less than 5 kt becoming N 5 to 9 kt in the afternoon. Isolated showers before 5pm. Seas around 4 ft.

Sunday Night

NE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly between 11pm and 2am. Seas around 4 ft.

Monday

Variable winds less than 5 kt becoming ENE 5 to 9 kt in the morning. Isolated showers before 11am. Seas around 4 ft.

Monday Night

E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 4 ft.

Tuesday

Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Mostly sunny. Seas around 4 ft.

Tuesday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 5 ft.

Wednesday

SSE wind 5 to 9 kt becoming E in the afternoon. Mostly sunny. Seas 4 to 5 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.