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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 86 °F
E 13kt
2ft
Tonight
Low: 81 °F
SE 7kt⇓
2ft
Labor Day
High: 85 °F
E 16kt
2-3ft
Monday Night
Low: 81 °F
ESE 8kt
3ft
Tuesday
High: 84 °F
E 15kt
3ft
Tuesday Night
Low: 80 °F
E 10kt
3ft
Wednesday
High: 82 °F
E 15kt
4ft
Wednesday Night
Low: 80 °F
E 11kt
4ft
Thursday
High: 86 °F
E 16kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:53 am EDT Sep 6, 2026
Forecast Valid: 1pm EDT Sep 6, 2026-6pm EDT Sep 12, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

E wind around 13 kt. Scattered showers. Seas around 2 ft.

Tonight

SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms before 9pm, then isolated showers after midnight. Seas around 2 ft.

Labor Day

E wind 7 to 16 kt, with gusts as high as 22 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Seas 2 to 3 ft.

Monday Night

ESE wind around 8 kt. Scattered showers, mainly before midnight. Seas around 3 ft.

Tuesday

E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 3 ft.

Tuesday Night

E wind 7 to 10 kt. Scattered showers. Seas around 3 ft.

Wednesday

E wind 10 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 4 ft.

Wednesday Night

E wind around 11 kt. Scattered showers. Seas around 4 ft.

Thursday

E wind 11 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.