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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 85 °F
ESE 9kt
2ft
Tonight
Low: 80 °F
SSE 6kt⇓
2ft
Friday
High: 87 °F
E 12kt
2ft
Friday Night
Low: 80 °F
SE 7kt⇓
2ft
Saturday
High: 87 °F
ESE 10kt
3ft
Saturday Night
Low: 80 °F
ESE 7kt⇓
3ft
Sunday
High: 87 °F
E 13kt
3ft
Sunday Night
Low: 79 °F
ESE 9kt
3ft
Monday
High: 85 °F
E 15kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:32 am EDT Sep 24, 2026
Forecast Valid: 9am EDT Sep 24, 2026-6pm EDT Sep 30, 2026

View Nearby Observations

Detailed Forecast

Today

ESE wind 6 to 9 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Seas around 2 ft.

Tonight

SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers before 9pm, then isolated showers after midnight. Seas around 2 ft.

Friday

E wind 7 to 12 kt. Scattered showers after noon. Seas around 2 ft.

Friday Night

SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 2 ft.

Saturday

ESE wind 6 to 10 kt. Isolated showers after noon. Seas around 3 ft.

Saturday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers. Seas around 3 ft.

Sunday

E wind 6 to 13 kt. Scattered showers. Seas around 3 ft.

Sunday Night

ESE wind 6 to 9 kt. Partly cloudy. Seas around 3 ft.

Monday

E wind 8 to 15 kt. Scattered showers. Seas around 4 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.