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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 83 °F
ENE 9kt
3ft
Tonight
Low: 82 °F
SE 12kt
3ft
Monday
High: 84 °F
ESE 11kt
4ft
Monday Night
Low: 82 °F
E 8kt
3ft
Tuesday
High: 85 °F
E 9kt
3ft
Tuesday Night
Low: 82 °F
ENE 8kt
3ft
Wednesday
High: 85 °F
E 9kt
3ft
Wednesday Night
Low: 82 °F
ENE 8kt
2ft
Thursday
High: 85 °F
E 9kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:22 am EDT Aug 30, 2026
Forecast Valid: 7am EDT Aug 30, 2026-6pm EDT Sep 5, 2026

View Nearby Observations

Detailed Forecast

Today

NE wind 5 to 9 kt becoming ESE in the afternoon. Showers likely and possibly a thunderstorm before 9am, then scattered showers and thunderstorms between 9am and 3pm, then showers and possibly a thunderstorm after 3pm. Seas around 3 ft.

Tonight

SE wind 6 to 12 kt. Showers and possibly a thunderstorm. Seas around 3 ft.

Monday

ESE wind 8 to 11 kt. Showers and thunderstorms likely, mainly before noon, then showers likely and possibly a thunderstorm after 3pm. Seas around 4 ft.

Monday Night

E wind 6 to 8 kt. Showers likely, mainly after midnight. Seas around 3 ft.

Tuesday

E wind 7 to 9 kt. Scattered showers, mainly before noon. Seas around 3 ft.

Tuesday Night

ENE wind around 8 kt. Scattered showers. Seas around 3 ft.

Wednesday

E wind 6 to 9 kt. Scattered showers before noon. Seas around 3 ft.

Wednesday Night

ENE wind around 8 kt. Clear. Seas around 2 ft.

Thursday

E wind around 9 kt. Mostly sunny. Seas around 2 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.