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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 82 °F
Light Wind
5ft
Wednesday
High: 85 °F
⇑E 7kt
4ft
Wednesday Night
Low: 82 °F
SSE 6kt⇓
3-4ft
Thursday
High: 85 °F
ESE 12kt
3-4ft
Thursday Night
Low: 82 °F
Light Wind
4ft
Friday
High: 85 °F
ESE 14kt
4-5ft
Friday Night
Low: 82 °F
ESE 8kt
5ft
Saturday
High: 85 °F
ESE 13kt
5ft
Saturday Night
Low: 82 °F
SE 7kt
4-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:13 pm EDT Oct 20, 2026
Forecast Valid: 8pm EDT Oct 20, 2026-6pm EDT Oct 27, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tonight

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

Wednesday

Variable winds less than 5 kt becoming E 5 to 7 kt in the afternoon. Scattered showers, with thunderstorms also possible after 3pm. Seas around 4 ft.

Wednesday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers, mainly after 3am. Seas 3 to 4 ft.

Thursday

SSE wind 5 to 12 kt becoming E in the afternoon. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after noon. Seas 3 to 4 ft.

Thursday Night

Variable winds 5 kt or less. Scattered showers, mainly after midnight. Seas around 4 ft.

Friday

ESE wind 6 to 14 kt. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas 4 to 5 ft.

Friday Night

ESE wind around 8 kt. Partly cloudy. Seas around 5 ft.

Saturday

ESE wind 7 to 13 kt. Showers likely. Seas around 5 ft.

Saturday Night

SE wind 5 to 7 kt. Partly cloudy. Seas 4 to 5 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.