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San Juan, PR Local Forecast Office

27NM S San Juan PR

Marine Point Forecast

[NOTICE]

Wednesday
High: 90 °F
E 10kt
2ft
Wednesday Night
Low: 79 °F
E 9kt
2ft
Thursday
High: 88 °F
E 11kt
2ft
Thursday Night
Low: 80 °F
ENE 9kt
2ft
Friday
High: 89 °F
E 12kt
2ft
Friday Night
Low: 79 °F
ENE 8kt
2ft
Saturday
High: 90 °F
E 10kt
2-3ft
Saturday Night
Low: 80 °F
ENE 11kt
2-3ft
Sunday
High: 93 °F
E 13kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:42 pm EDT Aug 4, 2026
Forecast Valid: 1am EDT Aug 5, 2026-6pm EDT Aug 11, 2026

View Nearby Observations

Detailed Forecast

Wednesday

E wind 7 to 10 kt. Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then isolated showers after 3pm. Seas around 2 ft.

Wednesday Night

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

Thursday

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

Thursday Night

ENE wind around 9 kt. Mostly clear. Seas around 2 ft.

Friday

E wind 8 to 12 kt. Isolated showers after noon. Seas around 2 ft.

Friday Night

ENE wind around 8 kt. Scattered showers. Seas around 2 ft.

Saturday

E wind around 10 kt. Sunny. Seas 2 to 3 ft.

Saturday Night

ENE wind 9 to 11 kt. Partly cloudy. Seas 2 to 3 ft.

Sunday

E wind 11 to 13 kt. Mostly sunny. Seas around 3 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.