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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:E wind 8 to 10 kt. Showers likely and possibly a thunderstorm before 3am, then scattered showers.   Seas around 6 ft.

      Low: 80 °F

      E 10kt
      6ft

    • Sunday

      Sunday:E wind 10 to 14 kt, with gusts as high as 20 kt. Scattered showers, then showers and possibly a thunderstorm after 9am.   Seas around 6 ft.

      High: 81 °F

      E 14kt
      6ft

    • Sunday Night

      Sunday Night:ESE wind 7 to 9 kt. Scattered showers.   Seas 5 to 6 ft.

      Low: 80 °F

      ESE 9kt
      5-6ft

    • Monday

      Monday:ESE wind 8 to 14 kt. Scattered showers, with thunderstorms also possible after noon.   Seas around 5 ft.

      High: 81 °F

      ESE 14kt
      5ft

    • Monday Night

      Monday Night:ESE wind 5 to 9 kt. Scattered showers, mainly after midnight.   Seas around 4 ft.

      Low: 80 °F

      ESE 9kt
      4ft

    • Tuesday

      Tuesday:ESE wind 7 to 14 kt. Isolated showers, then showers likely and possibly a thunderstorm after noon.   Seas around 4 ft.

      High: 81 °F

      ESE 14kt
      4ft

    • Tuesday Night

      Tuesday Night:ESE wind around 7 kt. Partly cloudy. Seas 3 to 4 ft.

      Low: 80 °F

      ESE 7kt
      3-4ft

    • Wednesday

      Wednesday:E wind 7 to 14 kt, with gusts as high as 20 kt. Showers likely.   Seas around 3 ft.

      High: 81 °F

      E 14kt
      3ft

    • Wednesday Night

      Wednesday Night:ESE wind 5 to 8 kt. Scattered showers.   Seas 3 to 4 ft.

      Low: 80 °F

      ESE 8kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:56 pm EDT Apr 4, 2026
Forecast Valid: 8pm EDT Apr 4, 2026-6pm EDT Apr 11, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

Tonight
E wind 8 to 10 kt. Showers likely and possibly a thunderstorm before 3am, then scattered showers. Seas around 6 ft.
Sunday
E wind 10 to 14 kt, with gusts as high as 20 kt. Scattered showers, then showers and possibly a thunderstorm after 9am. Seas around 6 ft.
Sunday Night
ESE wind 7 to 9 kt. Scattered showers. Seas 5 to 6 ft.
Monday
ESE wind 8 to 14 kt. Scattered showers, with thunderstorms also possible after noon. Seas around 5 ft.
Monday Night
ESE wind 5 to 9 kt. Scattered showers, mainly after midnight. Seas around 4 ft.
Tuesday
ESE wind 7 to 14 kt. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas around 4 ft.
Tuesday Night
ESE wind around 7 kt. Partly cloudy. Seas 3 to 4 ft.
Wednesday
E wind 7 to 14 kt, with gusts as high as 20 kt. Showers likely. Seas around 3 ft.
Wednesday Night
ESE wind 5 to 8 kt. Scattered showers. Seas 3 to 4 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: 3:56 pm EDT Apr 4, 2026
Forecast Valid: 8pm EDT Apr 4, 2026-6pm EDT Apr 11, 2026
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