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4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:36 am EDT Apr 9, 2026
Forecast Valid: 4am EDT Apr 9, 2026-6pm EDT Apr 15, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Thursday

E wind 7 to 14 kt, with gusts as high as 20 kt. Isolated showers before 9am, then scattered showers after noon. Seas around 4 ft.

Thursday Night

E wind 8 to 10 kt. Isolated showers. Seas around 4 ft.

Friday

E wind 8 to 15 kt. Isolated showers after noon. Seas 4 to 5 ft.

Friday Night

E wind 6 to 10 kt. Isolated showers. Seas 4 to 5 ft.

Saturday

E wind 6 to 15 kt. Isolated showers. Seas around 4 ft.

Saturday Night

E wind 7 to 10 kt. Scattered showers after midnight. Seas 4 to 5 ft.

Sunday

ENE wind 8 to 14 kt, with gusts as high as 20 kt. Scattered showers. Seas 4 to 5 ft.

Sunday Night

ENE wind 7 to 11 kt. Scattered showers. Seas around 5 ft.

Monday

ENE wind 9 to 13 kt. Showers likely. Seas around 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.