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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 83 °F
NNE 6kt
2ft
Tonight
Low: 79 °F
Light Wind
2ft
Monday
High: 82 °F
⇑E 6kt
3ft
Monday Night
Low: 79 °F
Light Wind
3ft
Tuesday
High: 82 °F
⇑ESE 8kt
3ft
Tuesday Night
Low: 79 °F
Light Wind
2-3ft
Wednesday
High: 82 °F
⇑E 10kt
2ft
Wednesday Night
Low: 79 °F
E 6kt
2ft
Thursday
High: 82 °F
E 10kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:27 pm EDT Apr 26, 2026
Forecast Valid: 3pm EDT Apr 26, 2026-6pm EDT May 2, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NNE wind around 6 kt. Scattered showers. Seas around 2 ft.

Tonight

Variable winds 5 kt or less. Scattered showers, mainly before 9pm. Seas around 2 ft.

Monday

Variable winds less than 5 kt becoming E around 6 kt. Showers likely and possibly a thunderstorm, mainly after 3pm. Seas around 3 ft.

Monday Night

Variable winds 5 kt or less. Scattered showers. Seas around 3 ft.

Tuesday

Variable winds less than 5 kt becoming ESE 5 to 8 kt in the morning. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.

Tuesday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Seas 2 to 3 ft.

Wednesday

Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers. Seas around 2 ft.

Wednesday Night

E wind around 6 kt. Scattered showers. Seas around 2 ft.

Thursday

E wind 6 to 10 kt. Scattered showers. Seas around 3 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.