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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 79 °F
N 6kt⇓
3ft
Sunday
High: 82 °F
⇑NE 9kt
2-3ft
Sunday Night
Low: 79 °F
Light Wind
2-3ft
Monday
High: 82 °F
⇑ESE 10kt
3ft
Monday Night
Low: 79 °F
Light Wind
3ft
Tuesday
High: 82 °F
Light Wind
3ft
Tuesday Night
Low: 79 °F
Light Wind
2-3ft
Wednesday
High: 82 °F
⇑E 7kt
2ft
Wednesday Night
Low: 79 °F
Light Wind
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:20 pm EDT Apr 25, 2026
Forecast Valid: 7pm EDT Apr 25, 2026-6pm EDT May 2, 2026

View Nearby Observations

Detailed Forecast

Tonight

N wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers, mainly before 9pm. Seas around 3 ft.

Sunday

Variable winds less than 5 kt becoming NE 5 to 9 kt in the morning. Showers likely and possibly a thunderstorm after 3pm. Seas 2 to 3 ft.

Sunday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm, then isolated showers. Seas 2 to 3 ft.

Monday

Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Scattered showers, then showers and possibly a thunderstorm after noon. Seas around 3 ft.

Monday Night

Variable winds 5 kt or less. Scattered showers, mainly before midnight. Seas around 3 ft.

Tuesday

Variable winds 5 kt or less. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.

Tuesday Night

Variable winds 5 kt or less. Scattered showers. Seas 2 to 3 ft.

Wednesday

Variable winds less than 5 kt becoming E 5 to 7 kt in the afternoon. Scattered showers. Seas around 2 ft.

Wednesday Night

Variable winds 5 kt or less. Scattered showers. Seas around 2 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.