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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 86 °F
E 13kt
3ft
Tonight
Low: 83 °F
ESE 8kt⇓
3ft
Monday
High: 86 °F
⇑E 14kt
2ft
Monday Night
Low: 83 °F
ESE 8kt⇓
2ft
Tuesday
High: 86 °F
E 13kt
2ft
Tuesday Night
Low: 83 °F
E 8kt
2-3ft
Wednesday
High: 86 °F
E 13kt
3ft
Wednesday Night
Low: 83 °F
ESE 9kt
2-3ft
Thursday
High: 86 °F
E 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:27 pm EDT Oct 4, 2026
Forecast Valid: 3pm EDT Oct 4, 2026-6pm EDT Oct 10, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

E wind around 13 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.

Tonight

ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms. Seas around 3 ft.

Monday

Variable winds less than 5 kt becoming E 9 to 14 kt in the morning. Winds could gust as high as 20 kt. Scattered showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then scattered showers after 3pm. Seas around 2 ft.

Monday Night

ESE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers. Seas around 2 ft.

Tuesday

E wind 6 to 13 kt. Scattered showers after noon. Seas around 2 ft.

Tuesday Night

E wind 5 to 8 kt. Scattered showers, mainly before midnight. Seas 2 to 3 ft.

Wednesday

E wind 8 to 13 kt. Scattered showers after noon. Seas around 3 ft.

Wednesday Night

ESE wind 5 to 9 kt. Scattered showers. Seas 2 to 3 ft.

Thursday

E wind 6 to 15 kt. Showers likely. Seas 2 to 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.