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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 85 °F
NNE 9kt
5ft
Tonight
Low: 77 °F
NE 8kt
5ft
Monday
High: 85 °F
NE 11kt
4-5ft
Monday Night
Low: 77 °F
ENE 7kt
4ft
Tuesday
High: 85 °F
⇑ENE 9kt
4ft
Tuesday Night
Low: 77 °F
Light Wind
4ft
Wednesday
High: 85 °F
E 14kt
4ft
Wednesday Night
Low: 77 °F
ESE 9kt
4ft
Thursday
High: 85 °F
E 16kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:06 pm EDT Mar 22, 2026
Forecast Valid: 1pm EDT Mar 22, 2026-6pm EDT Mar 28, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

This Afternoon

NNE wind around 9 kt. Showers likely. Seas around 5 ft.

Tonight

NE wind around 8 kt. Scattered showers, mainly after midnight. Seas around 5 ft.

Monday

NE wind around 11 kt. Scattered showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers and thunderstorms after 3pm. Seas 4 to 5 ft.

Monday Night

ENE wind 5 to 7 kt. Showers likely, mainly between 9pm and midnight. Seas around 4 ft.

Tuesday

Variable winds less than 5 kt becoming ENE 5 to 9 kt in the morning. Showers likely. Seas around 4 ft.

Tuesday Night

Variable winds 5 kt or less. Scattered showers. Seas around 4 ft.

Wednesday

E wind 6 to 14 kt, with gusts as high as 20 kt. Scattered showers. Seas around 4 ft.

Wednesday Night

ESE wind 7 to 9 kt. Scattered showers. Seas around 4 ft.

Thursday

E wind 8 to 16 kt, with gusts as high as 22 kt. Scattered showers. Seas around 4 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.