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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:49 am EDT Sep 19, 2026
Forecast Valid: 9am EDT Sep 19, 2026-6pm EDT Sep 25, 2026

Today

ENE wind 6 to 13 kt. Isolated showers after noon. Seas around 2 ft.

Tonight

E wind 5 to 8 kt. Scattered showers, mainly after 3am. Seas around 2 ft.

Sunday

E wind 5 to 13 kt. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 2 ft.

Sunday Night

SE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers. Seas around 2 ft.

Monday

E wind 5 to 14 kt, with gusts as high as 20 kt. Isolated showers, then scattered showers and thunderstorms after noon. Seas around 2 ft.

Monday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly before midnight. Seas around 2 ft.

Tuesday

E wind 7 to 13 kt. Scattered showers after noon. Seas around 2 ft.

Tuesday Night

ESE wind 6 to 9 kt. Mostly clear. Seas around 2 ft.

Wednesday

E wind 9 to 14 kt. Mostly sunny. 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.