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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Today
High: 80 °F
NE 12kt
4-5ft
Tonight
Low: 74 °F
NE 9kt
4ft
Tuesday
High: 82 °F
NE 10kt
4ft
Tuesday Night
Low: 76 °F
E 6kt
4ft
Wednesday
High: 85 °F
E 15kt
4ft
Wednesday Night
Low: 76 °F
E 9kt
4ft
Thursday
High: 83 °F
E 12kt
4ft
Thursday Night
Low: 76 °F
E 9kt
4ft
Friday
High: 84 °F
E 8kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:43 am EDT Mar 23, 2026
Forecast Valid: 11am EDT Mar 23, 2026-6pm EDT Mar 29, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today

NE wind around 12 kt. Scattered showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers likely after 3pm. Seas 4 to 5 ft.

Tonight

NE wind 7 to 9 kt. Scattered showers. Seas around 4 ft.

Tuesday

NE wind 8 to 10 kt. Showers likely, mainly between 9am and 3pm. Seas around 4 ft.

Tuesday Night

E wind around 6 kt. Scattered showers. Seas around 4 ft.

Wednesday

E wind 7 to 15 kt. Scattered showers, mainly after noon. Seas around 4 ft.

Wednesday Night

E wind 6 to 9 kt. Clear. Seas around 4 ft.

Thursday

E wind 7 to 12 kt. Scattered showers. Seas around 4 ft.

Thursday Night

E wind 7 to 9 kt. Scattered showers. Seas around 4 ft.

Friday

E wind around 8 kt. Scattered showers. 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.