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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 81 °F
ENE 14kt
4ft
Tonight
Low: 79 °F
ENE 12kt
4-6ft

Small Craft Advisory
Tuesday
High: 81 °F
ENE 13kt
7ft

Small Craft Advisory
Tuesday Night
Low: 79 °F
ENE 10kt
8ft

Small Craft Advisory
Wednesday
High: 81 °F
ENE 12kt
8ft

Small Craft Advisory
Wednesday Night
Low: 79 °F
ENE 9kt
8ft

Small Craft Advisory
Thursday
High: 81 °F
ENE 13kt
7ft

Small Craft Advisory
Thursday Night
Low: 79 °F
E 10kt
6-7ft

Small Craft Advisory
Friday
High: 81 °F
E 14kt
6ft

Small Craft Advisory

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:54 pm EDT Mar 30, 2026
Forecast Valid: 3pm EDT Mar 30, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM AST THIS EVENING THROUGH

This Afternoon

ENE wind around 14 kt. Scattered showers. Seas around 4 ft.

Tonight

ENE wind 10 to 12 kt. Scattered showers, with thunderstorms also possible after 9pm. Seas 4 to 6 ft.

Tuesday

ENE wind 10 to 13 kt. Scattered showers and thunderstorms before 9am, then scattered showers between 9am and noon, then scattered showers and thunderstorms after noon. Seas around 7 ft.

Tuesday Night

ENE wind around 10 kt. Showers likely and possibly a thunderstorm before 3am, then scattered showers and thunderstorms after 3am. Seas around 8 ft.

Wednesday

ENE wind 10 to 12 kt. Scattered showers and thunderstorms. Seas around 8 ft.

Wednesday Night

ENE wind around 9 kt. Showers likely and possibly a thunderstorm. Seas around 8 ft.

Thursday

ENE wind 10 to 13 kt. Scattered showers before noon. Seas around 7 ft.

Thursday Night

E wind 7 to 10 kt. Mostly clear. Seas 6 to 7 ft.

Friday

E wind 6 to 14 kt. Mostly sunny. Seas around 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.