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27NM S San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:44 am EDT Jul 22, 2026
Forecast Valid: 10am EDT Jul 22, 2026-6pm EDT Jul 28, 2026

Today

ESE wind around 9 kt. Showers likely and possibly a thunderstorm before noon, then isolated showers. Seas around 2 ft.

Tonight

E wind around 9 kt. Scattered showers, mainly before 3am. Seas around 2 ft.

Thursday

ESE wind 8 to 11 kt. Isolated showers before 3pm. Seas around 2 ft.

Thursday Night

E wind around 9 kt. Isolated showers. Seas around 2 ft.

Friday

E wind 11 to 13 kt. Isolated showers. Seas around 3 ft.

Friday Night

ENE wind around 10 kt. Mostly clear. Seas around 3 ft.

Saturday

E wind around 14 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 3 ft.

Saturday Night

ENE wind around 9 kt. Partly cloudy. Seas around 3 ft.

Sunday

E wind 10 to 12 kt. Scattered showers. Seas around 3 ft.

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.