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San Juan, PR Local Forecast Office

3NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming ENE 6 to 11 kt in the morning. Isolated showers after noon.   Seas around 5 ft.

      High: 82 °F

      ⇑ENE 11kt
      5ft

    • Tonight

      Tonight:E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers after midnight.   Seas around 5 ft.

      Low: 80 °F

      E 7kt⇓
      5ft

    • Friday

      Friday:Variable winds less than 5 kt becoming ENE 5 to 10 kt in the afternoon. Scattered showers after noon.   Seas around 4 ft.

      High: 82 °F

      ⇑ENE 10kt
      4ft

    • Friday Night

      Friday Night:ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers.   Seas around 4 ft.

      Low: 80 °F

      ESE 7kt⇓
      4ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. Isolated showers, then showers likely and possibly a thunderstorm after noon.   Seas around 3 ft.

      High: 82 °F

      ⇑SE 7kt
      3ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Isolated showers.   Seas around 3 ft.

      Low: 80 °F

      Light Wind
      3ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming ESE 5 to 8 kt in the morning. Showers likely after noon.   Seas around 2 ft.

      High: 82 °F

      ⇑ESE 8kt
      2ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

      Low: 80 °F

      Light Wind
      2ft

    • Monday

      Monday:Variable winds less than 5 kt becoming E 5 to 9 kt in the afternoon. Showers likely.   Seas 2 to 3 ft.

      High: 82 °F

      ⇑E 9kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:12 am EDT Apr 23, 2026
Forecast Valid: 9am EDT Apr 23, 2026-6pm EDT Apr 29, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

Today
Variable winds less than 5 kt becoming ENE 6 to 11 kt in the morning. Isolated showers after noon. Seas around 5 ft.
Tonight
E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Isolated showers after midnight. Seas around 5 ft.
Friday
Variable winds less than 5 kt becoming ENE 5 to 10 kt in the afternoon. Scattered showers after noon. Seas around 4 ft.
Friday Night
ESE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Scattered showers. Seas around 4 ft.
Saturday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. Isolated showers, then showers likely and possibly a thunderstorm after noon. Seas around 3 ft.
Saturday Night
Variable winds 5 kt or less. Isolated showers. Seas around 3 ft.
Sunday
Variable winds less than 5 kt becoming ESE 5 to 8 kt in the morning. Showers likely after noon. Seas around 2 ft.
Sunday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Monday
Variable winds less than 5 kt becoming E 5 to 9 kt in the afternoon. Showers likely. 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: 5:12 am EDT Apr 23, 2026
Forecast Valid: 9am EDT Apr 23, 2026-6pm EDT Apr 29, 2026
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