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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:E wind 9 to 12 kt. Scattered showers, mainly after 3am.   Seas around 3 ft.

      Low: 80 °F

      E 12kt
      3ft

    • Saturday

      Saturday:ENE wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly after 3pm.   Seas around 3 ft.

      High: 87 °F

      ENE 15kt
      3ft

    • Saturday Night

      Saturday Night:E wind around 9 kt. Scattered showers, mainly after midnight.   Seas 2 to 3 ft.

      Low: 80 °F

      E 9kt
      2-3ft

    • Sunday

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

      High: 87 °F

      E 15kt
      2-3ft

    • Sunday Night

      Sunday Night:E wind 8 to 10 kt. Scattered showers.   Seas around 2 ft.

      Low: 81 °F

      E 10kt
      2ft

    • Monday

      Monday:E wind 8 to 16 kt, with gusts as high as 22 kt. Scattered showers, mainly after noon.   Seas 2 to 3 ft.

      High: 87 °F

      E 16kt
      2-3ft

    • Monday Night

      Monday Night:E wind 6 to 10 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 81 °F

      E 10kt
      2-3ft

    • Tuesday

      Tuesday:E wind 6 to 15 kt, with gusts as high as 21 kt. Scattered showers.   Seas around 2 ft.

      High: 87 °F

      E 15kt
      2ft

    • Tuesday Night

      Tuesday Night:ESE wind 6 to 8 kt. Scattered showers.   Seas 2 to 3 ft.

      Low: 81 °F

      ESE 8kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:27 pm EDT Aug 21, 2026
Forecast Valid: 6pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026

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Detailed Forecast


Tonight
E wind 9 to 12 kt. Scattered showers, mainly after 3am. Seas around 3 ft.
Saturday
ENE wind 7 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly after 3pm. Seas around 3 ft.
Saturday Night
E wind around 9 kt. Scattered showers, mainly after midnight. Seas 2 to 3 ft.
Sunday
E wind 9 to 15 kt, with gusts as high as 21 kt. Scattered showers, mainly before 9am. Seas 2 to 3 ft.
Sunday Night
E wind 8 to 10 kt. Scattered showers. Seas around 2 ft.
Monday
E wind 8 to 16 kt, with gusts as high as 22 kt. Scattered showers, mainly after noon. Seas 2 to 3 ft.
Monday Night
E wind 6 to 10 kt. Partly cloudy. Seas 2 to 3 ft.
Tuesday
E wind 6 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 2 ft.
Tuesday Night
ESE wind 6 to 8 kt. Scattered showers. Seas 2 to 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: 6:27 pm EDT Aug 21, 2026
Forecast Valid: 6pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
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