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3NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:36 am EDT Sep 17, 2026
Forecast Valid: 6am EDT Sep 17, 2026-6pm EDT Sep 23, 2026

Today

ESE wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.

Tonight

ESE wind 8 to 10 kt. Showers likely and possibly a thunderstorm before midnight, then scattered showers. Seas around 3 ft.

Friday

E wind 8 to 16 kt. Scattered showers, mainly after 9am. Seas around 3 ft.

Friday Night

E wind 6 to 9 kt. Showers likely, mainly after midnight. Seas around 3 ft.

Saturday

Variable winds less than 5 kt becoming E 10 to 15 kt in the morning. Scattered showers. Seas around 2 ft.

Saturday Night

ESE wind 5 to 9 kt. Scattered showers. Seas around 2 ft.

Sunday

E wind 7 to 13 kt. Scattered showers after noon. Seas around 2 ft.

Sunday Night

SE wind 5 to 7 kt. Partly cloudy. Seas around 2 ft.

Monday

E wind 6 to 14 kt. Scattered showers. Seas around 2 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.