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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:E wind 6 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly before noon.   Seas around 3 ft.

      High: 85 °F

      E 15kt
      3ft

    • Tonight

      Tonight:E wind around 9 kt. Isolated showers, then scattered showers and thunderstorms after 3am.   Seas around 3 ft.

      Low: 82 °F

      E 9kt
      3ft

    • Saturday

      Saturday:E wind 10 to 15 kt. Scattered showers, mainly before noon.   Seas 3 to 4 ft.

      High: 85 °F

      E 15kt
      3-4ft

    • Saturday Night

      Saturday Night:ENE wind around 11 kt. Scattered showers after midnight.   Seas around 4 ft.

      Low: 82 °F

      ENE 11kt
      4ft

    • Sunday

      Sunday:ENE wind 13 to 15 kt, with gusts as high as 21 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.   Seas 4 to 5 ft.

      High: 85 °F

      ENE 15kt
      4-5ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming SE 6 to 11 kt after midnight. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight.   Seas around 5 ft.

      Low: 81 °F

      ⇑SE 11kt
      5ft

    • Monday

      Monday:ESE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Showers likely, mainly after noon.   Seas around 5 ft.

      High: 85 °F

      ESE 9kt⇓
      5ft

    • Monday Night

      Monday Night:Variable winds less than 5 kt becoming ESE around 6 kt in the evening. Scattered showers.   Seas 3 to 4 ft.

      Low: 82 °F

      ⇑ESE 6kt
      3-4ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming E 5 to 8 kt in the morning. Scattered showers.   Seas around 3 ft.

      High: 85 °F

      ⇑E 8kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:10 am EDT Aug 28, 2026
Forecast Valid: 5am EDT Aug 28, 2026-6pm EDT Sep 3, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today
E wind 6 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly before noon. Seas around 3 ft.
Tonight
E wind around 9 kt. Isolated showers, then scattered showers and thunderstorms after 3am. Seas around 3 ft.
Saturday
E wind 10 to 15 kt. Scattered showers, mainly before noon. Seas 3 to 4 ft.
Saturday Night
ENE wind around 11 kt. Scattered showers after midnight. Seas around 4 ft.
Sunday
ENE wind 13 to 15 kt, with gusts as high as 21 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Seas 4 to 5 ft.
Sunday Night
Variable winds less than 5 kt becoming SE 6 to 11 kt after midnight. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Seas around 5 ft.
Monday
ESE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Showers likely, mainly after noon. Seas around 5 ft.
Monday Night
Variable winds less than 5 kt becoming ESE around 6 kt in the evening. Scattered showers. Seas 3 to 4 ft.
Tuesday
Variable winds less than 5 kt becoming E 5 to 8 kt in the morning. Scattered showers. Seas around 3 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 18.45°N 66.1°W
Last Update: 4:10 am EDT Aug 28, 2026
Forecast Valid: 5am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
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