Hazardous Weather Conditions

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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 5pm, then scattered showers and thunderstorms after 5pm.   Seas around 4 ft.

      High: 84 °F

      Light Wind
      4ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Scattered showers before 2am, then isolated showers after 5am.   Seas around 4 ft.

      Low: 81 °F

      Light Wind
      4ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers, mainly after 8am.   Seas around 4 ft.

      High: 84 °F

      ⇑E 10kt
      4ft

    • Wednesday Night

      Wednesday Night:E wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly after 11pm.   Seas around 4 ft.

      Low: 81 °F

      E 8kt⇓
      4ft

    • Thursday

      Thursday:ENE wind 5 to 12 kt. Scattered showers.   Seas around 3 ft.

      High: 84 °F

      ENE 12kt
      3ft

    • Thursday Night

      Thursday Night:E wind around 8 kt. Scattered showers.   Seas around 3 ft.

      Low: 81 °F

      E 8kt
      3ft

    • Friday

      Friday:E wind 7 to 13 kt. Scattered showers before 11am.   Seas 3 to 4 ft.

      High: 84 °F

      E 13kt
      3-4ft

    • Friday Night

      Friday Night:E wind 6 to 9 kt. Scattered showers.   Seas around 4 ft.

      Low: 81 °F

      E 9kt
      4ft

    • Saturday

      Saturday:E wind 5 to 13 kt. Sunny. Seas around 4 ft.

      High: 84 °F

      E 13kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:57 am EST Dec 2, 2025
Forecast Valid: 3pm EST Dec 2, 2025-6pm EST Dec 8, 2025

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Detailed Forecast


This Afternoon
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 5pm, then scattered showers and thunderstorms after 5pm. Seas around 4 ft.
Tonight
Variable winds 5 kt or less. Scattered showers before 2am, then isolated showers after 5am. Seas around 4 ft.
Wednesday
Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers, mainly after 8am. Seas around 4 ft.
Wednesday Night
E wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers, mainly after 11pm. Seas around 4 ft.
Thursday
ENE wind 5 to 12 kt. Scattered showers. Seas around 3 ft.
Thursday Night
E wind around 8 kt. Scattered showers. Seas around 3 ft.
Friday
E wind 7 to 13 kt. Scattered showers before 11am. Seas 3 to 4 ft.
Friday Night
E wind 6 to 9 kt. Scattered showers. Seas around 4 ft.
Saturday
E wind 5 to 13 kt. Sunny. Seas around 4 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: 8:57 am EST Dec 2, 2025
Forecast Valid: 3pm EST Dec 2, 2025-6pm EST Dec 8, 2025
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