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4NM NE San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:51 pm EDT Sep 6, 2026
Forecast Valid: 5pm EDT Sep 6, 2026-6pm EDT Sep 13, 2026

Late Afternoon

ESE wind around 12 kt. Scattered showers and thunderstorms. Seas 1 ft or less.

Tonight

ESE wind 5 to 8 kt. Scattered showers and thunderstorms before 9pm, then isolated showers after midnight. Seas 1 ft or less.

Labor Day

ESE wind 5 to 10 kt increasing to 11 to 16 kt in the afternoon. Scattered showers, with thunderstorms also possible after 3pm. Seas 1 ft or less.

Monday Night

ESE wind around 8 kt. Scattered showers, mainly after 3am. Seas 1 ft or less.

Tuesday

E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas 1 ft or less.

Tuesday Night

E wind around 11 kt. Scattered showers. Seas 1 ft or less.

Wednesday

E wind 12 to 16 kt. Scattered showers. Seas 1 ft or less.

Wednesday Night

E wind around 12 kt. Scattered showers. Seas 1 ft or less.

Thursday

E wind 12 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas 1 ft or less.

Winds and seas higher in and near thunderstorms.

*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.