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27NM S San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:58 am EDT Aug 28, 2026
Forecast Valid: 3am EDT Aug 28, 2026-6pm EDT Sep 3, 2026

Friday

E wind 9 to 14 kt. Scattered showers, mainly after 3pm. Seas around 3 ft.

Friday Night

E wind around 10 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3am. Seas around 3 ft.

Saturday

E wind around 12 kt. Scattered showers before 9am, then isolated showers after 3pm. Seas around 3 ft.

Saturday Night

ENE wind around 10 kt. Scattered showers after midnight. Seas around 3 ft.

Sunday

ENE wind 9 to 15 kt. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.

Sunday Night

SE wind 5 to 12 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.

Monday

ESE wind 7 to 10 kt. Showers likely, mainly before noon. Seas around 3 ft.

Monday Night

E wind around 6 kt. Scattered showers. Seas around 3 ft.

Tuesday

Variable winds 5 kt or less. Scattered showers. 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.