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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:ENE wind 10 to 15 kt. Isolated showers.   Seas around 3 ft.

      High: 86 °F

      ENE 15kt
      3ft

    • Friday Night

      Friday Night:E wind around 10 kt. Isolated showers.   Seas around 3 ft.

      Low: 80 °F

      E 10kt
      3ft

    • Saturday

      Saturday:E wind 8 to 14 kt. Scattered showers, mainly after 9am.   Seas around 3 ft.

      High: 87 °F

      E 14kt
      3ft

    • Saturday Night

      Saturday Night:E wind around 9 kt. Scattered showers.   Seas around 3 ft.

      Low: 80 °F

      E 9kt
      3ft

    • Sunday

      Sunday:E wind 10 to 15 kt, with gusts as high as 21 kt. Scattered showers before noon.   Seas around 3 ft.

      High: 87 °F

      E 15kt
      3ft

    • Sunday Night

      Sunday Night:E wind 8 to 10 kt. Scattered showers.   Seas around 3 ft.

      Low: 81 °F

      E 10kt
      3ft

    • Monday

      Monday:E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers after noon.   Seas around 3 ft.

      High: 87 °F

      E 15kt
      3ft

    • Monday Night

      Monday Night:E wind 5 to 10 kt. Partly cloudy. Seas around 3 ft.

      Low: 81 °F

      E 10kt
      3ft

    • Tuesday

      Tuesday:E wind 5 to 10 kt increasing to 11 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Scattered showers.   Seas around 3 ft.

      High: 87 °F

      ⇑E 16kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:59 am EDT Aug 21, 2026
Forecast Valid: 4am EDT Aug 21, 2026-6pm EDT Aug 27, 2026

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Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Friday
ENE wind 10 to 15 kt. Isolated showers. Seas around 3 ft.
Friday Night
E wind around 10 kt. Isolated showers. Seas around 3 ft.
Saturday
E wind 8 to 14 kt. Scattered showers, mainly after 9am. Seas around 3 ft.
Saturday Night
E wind around 9 kt. Scattered showers. Seas around 3 ft.
Sunday
E wind 10 to 15 kt, with gusts as high as 21 kt. Scattered showers before noon. Seas around 3 ft.
Sunday Night
E wind 8 to 10 kt. Scattered showers. Seas around 3 ft.
Monday
E wind 8 to 15 kt, with gusts as high as 21 kt. Scattered showers after noon. Seas around 3 ft.
Monday Night
E wind 5 to 10 kt. Partly cloudy. Seas around 3 ft.
Tuesday
E wind 5 to 10 kt increasing to 11 to 16 kt in the afternoon. Winds could gust as high as 22 kt. 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: 2:59 am EDT Aug 21, 2026
Forecast Valid: 4am EDT Aug 21, 2026-6pm EDT Aug 27, 2026
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