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4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:06 pm EDT May 24, 2026
Forecast Valid: 6pm EDT May 24, 2026-6pm EDT May 31, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT...

Tonight

E wind 12 to 15 kt. Scattered showers, mainly between midnight and 3am. Seas 4 to 5 ft.

Memorial Day

E wind 16 to 20 kt, with gusts as high as 29 kt. Isolated showers before noon, then isolated showers after 3pm. Seas around 5 ft.

Monday Night

E wind 10 to 20 kt, with gusts as high as 29 kt. Scattered showers after 9pm. Seas around 5 ft.

Tuesday

E wind 12 to 17 kt, with gusts as high as 23 kt. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 5 ft.

Tuesday Night

E wind 7 to 9 kt. Scattered showers. Seas 4 to 5 ft.

Wednesday

E wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly after noon. Seas around 4 ft.

Wednesday Night

ESE wind around 9 kt. Partly cloudy. Seas 3 to 4 ft.

Thursday

E wind 9 to 15 kt. Scattered showers. Seas around 4 ft.

Thursday Night

SE wind 6 to 8 kt. Scattered showers. Seas around 3 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.