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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 75 °F
SSW 7kt⇓
3-4ft
Sunday
High: 82 °F
⇑N 12kt
3-4ft
Sunday Night
Low: 74 °F
NNE 11kt
4-5ft
Monday
High: 81 °F
NE 12kt
5ft
Monday Night
Low: 74 °F
NE 8kt
4ft
Tuesday
High: 81 °F
NE 9kt
4ft
Tuesday Night
Low: 73 °F
E 6kt
4ft
Wednesday
High: 82 °F
E 12kt
4ft
Wednesday Night
Low: 74 °F
ESE 8kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:37 pm EDT Mar 21, 2026
Forecast Valid: 7pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Scattered showers, then showers likely and possibly a thunderstorm after 3am. Seas 3 to 4 ft.

Sunday

Variable winds less than 5 kt becoming N 7 to 12 kt in the morning. Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. Seas 3 to 4 ft.

Sunday Night

NNE wind 8 to 11 kt. Showers likely and possibly a thunderstorm before 9pm, then scattered showers. Seas 4 to 5 ft.

Monday

NE wind around 12 kt. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas around 5 ft.

Monday Night

NE wind 6 to 8 kt. Showers likely, mainly before midnight. Seas around 4 ft.

Tuesday

NE wind 6 to 9 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers. Seas around 4 ft.

Tuesday Night

E wind around 6 kt. Showers likely. Seas around 4 ft.

Wednesday

E wind 6 to 12 kt. Scattered showers. Seas around 4 ft.

Wednesday Night

ESE wind around 8 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.