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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 83 °F
E 13kt
4-5ft
Tonight
Low: 78 °F
E 11kt
4ft
Wednesday
High: 83 °F
E 13kt
3-4ft
Wednesday Night
Low: 78 °F
ENE 9kt
3ft
Thursday
High: 85 °F
E 10kt
3ft
Thursday Night
Low: 80 °F
E 9kt
3ft
Friday
High: 86 °F
ESE 11kt
3ft
Friday Night
Low: 81 °F
E 8kt
2ft
Saturday
High: 87 °F
ESE 12kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:36 am EDT May 26, 2026
Forecast Valid: 6am EDT May 26, 2026-6pm EDT Jun 1, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

E wind around 13 kt. Scattered showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then scattered showers after noon. Seas 4 to 5 ft.

Tonight

E wind around 11 kt. Scattered showers, then showers likely and possibly a thunderstorm after midnight. Seas around 4 ft.

Wednesday

E wind 11 to 13 kt. Showers likely, mainly before noon. Seas 3 to 4 ft.

Wednesday Night

ENE wind 6 to 9 kt. Scattered showers. Seas around 3 ft.

Thursday

E wind 8 to 10 kt. Scattered showers. Seas around 3 ft.

Thursday Night

E wind 7 to 9 kt. Scattered showers. Seas around 3 ft.

Friday

ESE wind 8 to 11 kt. Scattered showers before noon. Seas around 3 ft.

Friday Night

E wind around 8 kt. Partly cloudy. Seas around 2 ft.

Saturday

ESE wind 9 to 12 kt. Sunny. 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.