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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 85 °F
SSE 6kt
1ft
Tonight
Low: 82 °F
Light Wind
1ft
Thursday
High: 85 °F
ESE 9kt
1-2ft
Thursday Night
Low: 82 °F
Light Wind
2ft
Friday
High: 85 °F
ESE 8kt
2ft
Friday Night
Low: 82 °F
E 9kt
2-3ft
Saturday
High: 85 °F
ESE 8kt
3ft
Saturday Night
Low: 82 °F
E 7kt
3ft
Sunday
High: 85 °F
ESE 9kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:49 pm EDT Oct 21, 2026
Forecast Valid: 3pm EDT Oct 21, 2026-6pm EDT Oct 27, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SSE wind around 6 kt. Scattered showers. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Isolated showers before 9pm, then scattered showers and thunderstorms between 9pm and 3am, then isolated showers after 3am. Seas around 1 ft.

Thursday

ESE wind 6 to 9 kt. Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Seas 1 to 2 ft.

Thursday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm, then scattered showers between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Seas around 2 ft.

Friday

ESE wind 6 to 8 kt. Showers and possibly a thunderstorm. Seas around 2 ft.

Friday Night

E wind 7 to 9 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Seas 2 to 3 ft.

Saturday

ESE wind 5 to 8 kt. Scattered showers before noon. Seas around 3 ft.

Saturday Night

E wind 5 to 7 kt. Scattered showers. Seas around 3 ft.

Sunday

ESE wind around 9 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.