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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 85 °F
Light Wind
2ft
Tonight
Low: 77 °F
NNE 6kt
2ft
Monday
High: 85 °F
ENE 9kt
2ft
Monday Night
Low: 77 °F
NNE 7kt
2ft
Tuesday
High: 85 °F
E 9kt
1ft
Tuesday Night
Low: 77 °F
ENE 6kt
1ft
Wednesday
High: 85 °F
E 11kt
2ft
Wednesday Night
Low: 77 °F
ENE 9kt
2-3ft
Thursday
High: 85 °F
E 12kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:45 pm EDT Mar 22, 2026
Forecast Valid: 4pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Showers likely. Seas around 2 ft.

Tonight

NNE wind around 6 kt. Showers likely, with thunderstorms also possible after 3am. Seas around 2 ft.

Monday

ENE wind 6 to 9 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Seas around 2 ft.

Monday Night

NNE wind 5 to 7 kt. Scattered showers, mainly after 3am. Seas around 2 ft.

Tuesday

NNE wind 5 to 9 kt becoming E in the morning. Scattered showers before noon. Seas around 1 ft.

Tuesday Night

ENE wind around 6 kt. Showers likely, mainly after midnight. Seas around 1 ft.

Wednesday

E wind 8 to 11 kt. Scattered showers. Seas around 2 ft.

Wednesday Night

ENE wind 7 to 9 kt. Scattered showers. Seas 2 to 3 ft.

Thursday

E wind 10 to 12 kt. Scattered 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.