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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 82 °F
E 8kt
4ft
Tonight
Low: 80 °F
Light Wind
4ft
Wednesday
High: 82 °F
⇑E 13kt
4ft
Wednesday Night
Low: 80 °F
ESE 8kt
4ft
Thursday
High: 82 °F
E 14kt
4ft
Thursday Night
Low: 80 °F
ESE 9kt
3-4ft
Friday
High: 82 °F
E 8kt
3ft
Friday Night
Low: 80 °F
ESE 8kt
3ft
Saturday
High: 82 °F
E 10kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:04 pm EDT Apr 14, 2026
Forecast Valid: 1pm EDT Apr 14, 2026-6pm EDT Apr 20, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

This Afternoon

E wind around 8 kt. Showers and possibly a thunderstorm. Seas around 4 ft.

Tonight

Variable winds 5 kt or less. Showers and possibly a thunderstorm before 9pm, then scattered showers between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Seas around 4 ft.

Wednesday

Variable winds less than 5 kt becoming E 8 to 13 kt in the morning. Showers and possibly a thunderstorm before 3pm, then showers likely. Seas around 4 ft.

Wednesday Night

ESE wind 6 to 8 kt. Showers likely, mainly after midnight. Seas around 4 ft.

Thursday

E wind 7 to 14 kt. Scattered showers, then showers and possibly a thunderstorm after noon. Seas around 4 ft.

Thursday Night

ESE wind 6 to 9 kt. Scattered showers. Seas 3 to 4 ft.

Friday

E wind around 8 kt. Showers likely. Seas around 3 ft.

Friday Night

ESE wind around 8 kt. Showers. Seas around 3 ft.

Saturday

E wind around 10 kt. 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.