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San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. Scattered showers.   Seas 1 ft or less.

      Low: 77 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after noon.   Seas 1 ft or less.

      High: 85 °F

      ⇑E 9kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm, then scattered showers.   Seas 1 ft or less.

      Low: 77 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers, then showers likely and possibly a thunderstorm after noon.   Seas 1 ft or less.

      High: 86 °F

      ⇑E 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:E wind 5 to 7 kt. Scattered showers.   Seas 1 ft or less.

      Low: 77 °F

      E 7kt
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Scattered showers, with thunderstorms also possible after noon.   Seas 1 ft or less.

      High: 85 °F

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:ESE wind 5 to 9 kt. Scattered showers.   Seas 1 ft or less.

      Low: 77 °F

      ESE 9kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming E 9 to 14 kt in the morning. Scattered showers.   Seas 1 ft or less.

      High: 87 °F

      ⇑E 14kt
      < 1ft

    • Friday Night

      Friday Night:E wind 6 to 8 kt. Scattered showers.   Seas 1 ft or less.

      Low: 77 °F

      E 8kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:55 pm EDT Apr 27, 2026
Forecast Valid: 10pm EDT Apr 27, 2026-6pm EDT May 4, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Scattered showers. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming E 5 to 9 kt in the morning. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after noon. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 9pm, then scattered showers. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers, then showers likely and possibly a thunderstorm after noon. Seas 1 ft or less.
Wednesday Night
E wind 5 to 7 kt. Scattered showers. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. Scattered showers, with thunderstorms also possible after noon. Seas 1 ft or less.
Thursday Night
ESE wind 5 to 9 kt. Scattered showers. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming E 9 to 14 kt in the morning. Scattered showers. Seas 1 ft or less.
Friday Night
E wind 6 to 8 kt. Scattered showers. Seas 1 ft or less.

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 65.99°W
Last Update: 4:55 pm EDT Apr 27, 2026
Forecast Valid: 10pm EDT Apr 27, 2026-6pm EDT May 4, 2026
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