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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:N wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers, mainly before 9pm.   Seas around 3 ft.

      Low: 79 °F

      N 6kt⇓
      3ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming NE 5 to 9 kt in the morning. Showers likely and possibly a thunderstorm after 3pm.   Seas 2 to 3 ft.

      High: 82 °F

      ⇑NE 9kt
      2-3ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm, then isolated showers.   Seas 2 to 3 ft.

      Low: 79 °F

      Light Wind
      2-3ft

    • Monday

      Monday:Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Scattered showers, then showers and possibly a thunderstorm after noon.   Seas around 3 ft.

      High: 82 °F

      ⇑ESE 10kt
      3ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Scattered showers, mainly before midnight.   Seas around 3 ft.

      Low: 79 °F

      Light Wind
      3ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Scattered showers, then showers likely and possibly a thunderstorm after noon.   Seas around 3 ft.

      High: 82 °F

      Light Wind
      3ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Scattered showers.   Seas 2 to 3 ft.

      Low: 79 °F

      Light Wind
      2-3ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming E 5 to 7 kt in the afternoon. Scattered showers.   Seas around 2 ft.

      High: 82 °F

      ⇑E 7kt
      2ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Scattered showers.   Seas around 2 ft.

      Low: 79 °F

      Light Wind
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:20 pm EDT Apr 25, 2026
Forecast Valid: 7pm EDT Apr 25, 2026-6pm EDT May 2, 2026

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Detailed Forecast


Tonight
N wind around 6 kt becoming variable and less than 5 kt in the evening. Scattered showers, mainly before 9pm. Seas around 3 ft.
Sunday
Variable winds less than 5 kt becoming NE 5 to 9 kt in the morning. Showers likely and possibly a thunderstorm after 3pm. Seas 2 to 3 ft.
Sunday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm, then isolated showers. Seas 2 to 3 ft.
Monday
Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. Scattered showers, then showers and possibly a thunderstorm after noon. Seas around 3 ft.
Monday Night
Variable winds 5 kt or less. Scattered showers, mainly before midnight. Seas around 3 ft.
Tuesday
Variable winds 5 kt or less. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.
Tuesday Night
Variable winds 5 kt or less. Scattered showers. Seas 2 to 3 ft.
Wednesday
Variable winds less than 5 kt becoming E 5 to 7 kt in the afternoon. Scattered showers. Seas around 2 ft.
Wednesday Night
Variable winds 5 kt or less. Scattered showers. Seas around 2 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: 18.46°N 66.13°W
Last Update: 4:20 pm EDT Apr 25, 2026
Forecast Valid: 7pm EDT Apr 25, 2026-6pm EDT May 2, 2026
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