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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 80 °F
Light Wind
1ft
Thursday
High: 83 °F
ESE 8kt
1ft
Thursday Night
Low: 80 °F
E 9kt
2ft
Friday
High: 83 °F
ESE 11kt
2-3ft
Friday Night
Low: 80 °F
E 7kt
3ft
Saturday
High: 83 °F
E 13kt
3ft
Saturday Night
Low: 80 °F
E 12kt
3ft
Sunday
High: 83 °F
E 12kt
4ft
Sunday Night
Low: 80 °F
E 12kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:33 pm EDT Jun 10, 2026
Forecast Valid: 12am EDT Jun 11, 2026-6pm EDT Jun 17, 2026

View Nearby Observations

Detailed Forecast

Overnight

Variable winds 5 kt or less. Isolated showers. Seas around 1 ft.

Thursday

ESE wind around 8 kt. Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Seas around 1 ft.

Thursday Night

E wind 7 to 9 kt. Scattered showers, mainly between midnight and 3am. Seas around 2 ft.

Friday

ESE wind 9 to 11 kt. Scattered showers, mainly after 3pm. Seas 2 to 3 ft.

Friday Night

E wind around 7 kt. Isolated showers. Seas around 3 ft.

Saturday

E wind 10 to 13 kt. Isolated showers before noon. Seas around 3 ft.

Saturday Night

E wind around 12 kt. Partly cloudy. Seas around 3 ft.

Sunday

E wind around 12 kt. Mostly sunny. Seas around 4 ft.

Sunday Night

E wind around 12 kt. Partly cloudy. Seas around 4 ft.

*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.