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27NM S San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:47 am EDT Jul 20, 2026
Forecast Valid: 2am EDT Jul 20, 2026-6pm EDT Jul 26, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Monday

E wind 10 to 13 kt. Isolated showers before 9am. Seas around 3 ft.

Monday Night

NE wind 5 to 8 kt. Isolated showers before 9pm, then isolated showers after 3am. Seas around 3 ft.

Tuesday

E wind 6 to 12 kt. Scattered showers, mainly after noon. Seas around 2 ft.

Tuesday Night

NE wind 6 to 8 kt. Scattered showers, mainly after midnight. Seas around 2 ft.

Wednesday

ESE wind around 9 kt. Showers likely, mainly before noon. Seas around 2 ft.

Wednesday Night

E wind 8 to 10 kt. Scattered showers. Seas around 2 ft.

Thursday

ESE wind around 11 kt. Mostly sunny. Seas around 2 ft.

Thursday Night

E wind around 10 kt. Partly cloudy. Seas 2 to 3 ft.

Friday

E wind 9 to 13 kt. Mostly sunny. 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.