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San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]

This Afternoon
High: 89 °F
E 17kt
< 1ft
Tonight
Low: 80 °F
ESE 7kt
< 1ft
Saturday
High: 89 °F
ESE 14kt
< 1ft
Saturday Night
Low: 80 °F
ESE 6kt⇓
< 1ft
Sunday
High: 90 °F
ESE 14kt
< 1ft
Sunday Night
Low: 80 °F
SE 7kt
< 1ft
Monday
High: 90 °F
ESE 13kt
< 1ft
Monday Night
Low: 79 °F
SE 10kt⇓
< 1ft
Tuesday
High: 89 °F
ESE 13kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:38 am EDT Oct 23, 2026
Forecast Valid: 12pm EDT Oct 23, 2026-6pm EDT Oct 29, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON AST TODAY THROUGH

This Afternoon

E wind 14 to 17 kt, with gusts as high as 23 kt. Showers likely and possibly a thunderstorm before 3pm, then isolated showers. Seas 1 ft or less.

Tonight

ESE wind around 7 kt. Isolated showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then scattered showers after midnight. Seas 1 ft or less.

Saturday

ESE wind 7 to 14 kt. Scattered showers. Seas 1 ft or less.

Saturday Night

ESE wind around 6 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly after midnight. Seas 1 ft or less.

Sunday

ESE wind 8 to 14 kt. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas 1 ft or less.

Sunday Night

SE wind 5 to 7 kt. Isolated showers. Seas 1 ft or less.

Monday

ESE wind 7 to 13 kt. Scattered showers after noon. Seas 1 ft or less.

Monday Night

SE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Tuesday

ESE wind 5 to 13 kt. Scattered showers. Seas 1 ft or less.

*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.