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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 82 °F
ESE 6kt⇓
3ft
Tuesday
High: 84 °F
ESE 14kt
3ft
Tuesday Night
Low: 82 °F
ESE 7kt⇓
3ft
Wednesday
High: 84 °F
E 9kt⇓
3ft
Wednesday Night
Low: 82 °F
SSW 6kt⇓
2-3ft
Thursday
High: 84 °F
Light Wind
2ft
Thursday Night
Low: 82 °F
Light Wind
2ft
Friday
High: 84 °F
⇑W 6kt
2-3ft
Friday Night
Low: 82 °F
Light Wind
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:06 pm EST Nov 2, 2026
Forecast Valid: 9pm EST Nov 2, 2026-6pm EST Nov 9, 2026

View Nearby Observations

Detailed Forecast

Tonight

ESE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly between 11pm and 2am. Seas around 3 ft.

Tuesday

ESE wind 6 to 14 kt. Isolated showers before 8am, then scattered showers and thunderstorms after 2pm. Seas around 3 ft.

Tuesday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 3 ft.

Wednesday

E wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Scattered showers, with thunderstorms also possible after 11am. Seas around 3 ft.

Wednesday Night

SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers. Seas 2 to 3 ft.

Thursday

Variable winds 5 kt or less. Isolated showers, then showers likely and possibly a thunderstorm after 11am. Seas around 2 ft.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

Friday

Variable winds less than 5 kt becoming W around 6 kt. Showers likely. Seas 2 to 3 ft.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 3 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.