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4NM NE San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:33 am EST Nov 12, 2026
Forecast Valid: 6am EST Nov 12, 2026-6pm EST Nov 18, 2026

Today

SE wind 6 to 13 kt. Isolated showers. Seas 1 ft or less.

Tonight

SE wind 5 to 8 kt. Isolated showers before 11pm, then isolated showers after 2am. Seas 1 ft or less.

Friday

SE wind 10 to 15 kt. Scattered showers, mainly between 8am and 11am. Seas 1 ft or less.

Friday Night

SSE wind 9 to 11 kt. Isolated showers. Seas 1 ft or less.

Saturday

SSE wind 10 to 13 kt. Scattered showers, mainly after 11am. Seas 1 ft or less.

Saturday Night

SE wind 5 to 7 kt. Isolated showers before 11pm. Seas 1 ft or less.

Sunday

ESE wind 6 to 12 kt. Sunny. Seas 1 ft or less.

Sunday Night

ESE wind around 7 kt. Mostly clear. Seas 1 ft or less.

Monday

ENE wind 8 to 12 kt. Scattered showers. Seas 1 ft or less.

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.