Hazardous Weather Conditions

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San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind 8 to 10 kt. Scattered showers.   Seas around 4 ft.

      High: 84 °F

      NE 10kt
      4ft

    • Tonight

      Tonight:NE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm.   Seas around 4 ft.

      Low: 81 °F

      NE 8kt⇓
      4ft

    • Tuesday

      Tuesday:NE wind 5 to 7 kt. Showers and thunderstorms likely before 11am, then scattered showers between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.   Seas around 4 ft.

      High: 84 °F

      NE 7kt
      4ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Scattered showers.   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.   Seas around 4 ft.

      High: 84 °F

      ⇑E 10kt
      4ft

    • Wednesday Night

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

      Low: 81 °F

      E 8kt
      3-4ft

    • Thursday

      Thursday:E wind 5 to 11 kt. Scattered showers.   Seas around 3 ft.

      High: 84 °F

      E 11kt
      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 12 kt. Scattered showers.   Seas around 3 ft.

      High: 84 °F

      E 12kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:04 am EST Dec 1, 2025
Forecast Valid: 11am EST Dec 1, 2025-6pm EST Dec 7, 2025

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Detailed Forecast


Today
NE wind 8 to 10 kt. Scattered showers. Seas around 4 ft.
Tonight
NE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Seas around 4 ft.
Tuesday
NE wind 5 to 7 kt. Showers and thunderstorms likely before 11am, then scattered showers between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas around 4 ft.
Tuesday Night
Variable winds 5 kt or less. Scattered showers. Seas around 4 ft.
Wednesday
Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Scattered showers. Seas around 4 ft.
Wednesday Night
E wind 5 to 8 kt. Scattered showers. Seas 3 to 4 ft.
Thursday
E wind 5 to 11 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 12 kt. Scattered showers. Seas around 3 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: 18.46°N 66.13°W
Last Update: 9:04 am EST Dec 1, 2025
Forecast Valid: 11am EST Dec 1, 2025-6pm EST Dec 7, 2025
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