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4NM NE San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:51 am EDT Jul 14, 2026
Forecast Valid: 7am EDT Jul 14, 2026-6pm EDT Jul 20, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

E wind 9 to 17 kt, with gusts as high as 23 kt. Widespread haze. Seas 1 ft or less.

Tonight

E wind around 12 kt. Isolated showers between midnight and 3am. Widespread haze. Seas 1 ft or less.

Wednesday

E wind 11 to 15 kt. Isolated showers between 9am and noon. Widespread haze. Seas 1 ft or less.

Wednesday Night

E wind around 11 kt. Widespread haze before midnight. Seas 1 ft or less.

Thursday

E wind 9 to 15 kt. Scattered showers, mainly after noon. Seas 1 ft or less.

Thursday Night

E wind 10 to 12 kt. Scattered showers, mainly before midnight. Seas 1 ft or less.

Friday

E wind 11 to 15 kt, with gusts as high as 21 kt. Scattered showers before noon. Seas 1 ft or less.

Friday Night

E wind around 10 kt. Partly cloudy. Seas 1 ft or less.

Saturday

E wind 11 to 15 kt, with gusts as high as 21 kt. Mostly sunny. Seas 1 ft or less.

*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.