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4NM NW San Juan PR

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:32 am EDT Apr 2, 2026
Forecast Valid: 5am EDT Apr 2, 2026-6pm EDT Apr 8, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

Today

ENE wind 9 to 12 kt. Showers likely, mainly after 3pm. Seas around 7 ft.

Tonight

ENE wind 10 to 12 kt. Showers likely, mainly after 9pm. Seas around 6 ft.

Friday

ENE wind 11 to 13 kt. Scattered showers. Seas around 6 ft.

Friday Night

E wind around 9 kt. Showers likely. Seas around 6 ft.

Saturday

E wind 9 to 14 kt. Showers likely and possibly a thunderstorm. Seas around 6 ft.

Saturday Night

E wind around 9 kt. Showers likely and possibly a thunderstorm. Seas around 6 ft.

Sunday

E wind 9 to 14 kt, with gusts as high as 20 kt. Showers likely, mainly after noon. Seas around 6 ft.

Sunday Night

ESE wind 7 to 9 kt. Scattered showers. Seas around 6 ft.

Monday

ESE wind 7 to 14 kt. Scattered showers. Seas 5 to 6 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.