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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:E wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly between 9am and noon.   Seas 2 to 3 ft.

      High: 85 °F

      E 15kt
      2-3ft

    • Tonight

      Tonight:E wind 7 to 10 kt. Scattered showers, mainly after midnight.   Seas around 2 ft.

      Low: 82 °F

      E 10kt
      2ft

    • Monday

      Monday:E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly before noon.   Seas 2 to 3 ft.

      High: 85 °F

      E 15kt
      2-3ft

    • Monday Night

      Monday Night:E wind 7 to 10 kt. Isolated showers after midnight.   Seas around 2 ft.

      Low: 82 °F

      E 10kt
      2ft

    • Tuesday

      Tuesday:E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers.   Seas around 2 ft.

      High: 85 °F

      E 15kt
      2ft

    • Tuesday Night

      Tuesday Night:E wind around 9 kt. Scattered showers, mainly before midnight.   Seas around 2 ft.

      Low: 82 °F

      E 9kt
      2ft

    • Wednesday

      Wednesday:ENE wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers before noon.   Seas 2 to 3 ft.

      High: 85 °F

      ENE 15kt
      2-3ft

    • Wednesday Night

      Wednesday Night:E wind around 10 kt. Scattered showers.   Seas around 3 ft.

      Low: 82 °F

      E 10kt
      3ft

    • Thursday

      Thursday:ENE wind 9 to 15 kt, with gusts as high as 21 kt. Mostly sunny. Seas around 3 ft.

      High: 85 °F

      ENE 15kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:47 am EDT Aug 23, 2026
Forecast Valid: 8am EDT Aug 23, 2026-6pm EDT Aug 29, 2026

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Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Today
E wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly between 9am and noon. Seas 2 to 3 ft.
Tonight
E wind 7 to 10 kt. Scattered showers, mainly after midnight. Seas around 2 ft.
Monday
E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly before noon. Seas 2 to 3 ft.
Monday Night
E wind 7 to 10 kt. Isolated showers after midnight. Seas around 2 ft.
Tuesday
E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 2 ft.
Tuesday Night
E wind around 9 kt. Scattered showers, mainly before midnight. Seas around 2 ft.
Wednesday
ENE wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers before noon. Seas 2 to 3 ft.
Wednesday Night
E wind around 10 kt. Scattered showers. Seas around 3 ft.
Thursday
ENE wind 9 to 15 kt, with gusts as high as 21 kt. Mostly sunny. Seas around 3 ft.

Winds and seas higher in and near thunderstorms.

*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: 3:47 am EDT Aug 23, 2026
Forecast Valid: 8am EDT Aug 23, 2026-6pm EDT Aug 29, 2026
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