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Jacksonville, FL Local Forecast Office

4NM SE Altamaha Sound FL

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind around 12 kt. Mostly sunny. Seas around 3 ft.

      High: 51 °F

      N 12kt
      3ft

    • Tonight

      Tonight:N wind 7 to 12 kt. Mostly clear. Seas around 3 ft.

      Low: 43 °F

      N 12kt
      3ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming WSW 8 to 13 kt in the morning. Sunny. Seas 2 to 3 ft.

      High: 61 °F

      ⇑WSW 13kt
      2-3ft

    • Wednesday Night

      Wednesday Night:WSW wind 13 to 17 kt becoming WNW after midnight. Mostly clear. Seas around 3 ft.

      Low: 47 °F

      WSW 17kt
      3ft

    • Thursday

      Thursday:WNW wind 10 to 12 kt. Sunny. Seas around 2 ft.

      High: 57 °F

      WNW 12kt
      2ft

    • Thursday Night

      Thursday Night:W wind 6 to 10 kt. Clear. Seas 1 to 2 ft.

      Low: 47 °F

      W 10kt
      1-2ft

    • Friday

      Friday:NW wind 5 to 7 kt becoming S in the afternoon. Sunny. Seas around 1 ft.

      High: 60 °F

      S 7kt
      1ft

    • Friday Night

      Friday Night:S wind around 7 kt becoming WSW after midnight. Mostly clear. Seas around 1 ft.

      Low: 52 °F

      S 7kt
      1ft

    • Saturday

      Saturday:WSW wind around 6 kt becoming variable and less than 5 kt. Sunny. Seas around 1 ft.

      High: 64 °F

      WSW 6kt⇓
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:26 pm EST Dec 9, 2025
Forecast Valid: 5pm EST Dec 9, 2025-6pm EST Dec 16, 2025

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Detailed Forecast


This Afternoon
N wind around 12 kt. Mostly sunny. Seas around 3 ft.
Tonight
N wind 7 to 12 kt. Mostly clear. Seas around 3 ft.
Wednesday
Variable winds less than 5 kt becoming WSW 8 to 13 kt in the morning. Sunny. Seas 2 to 3 ft.
Wednesday Night
WSW wind 13 to 17 kt becoming WNW after midnight. Mostly clear. Seas around 3 ft.
Thursday
WNW wind 10 to 12 kt. Sunny. Seas around 2 ft.
Thursday Night
W wind 6 to 10 kt. Clear. Seas 1 to 2 ft.
Friday
NW wind 5 to 7 kt becoming S in the afternoon. Sunny. Seas around 1 ft.
Friday Night
S wind around 7 kt becoming WSW after midnight. Mostly clear. Seas around 1 ft.
Saturday
WSW wind around 6 kt becoming variable and less than 5 kt. Sunny. Seas around 1 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: 31.24°N 81.25°W
Last Update: 12:26 pm EST Dec 9, 2025
Forecast Valid: 5pm EST Dec 9, 2025-6pm EST Dec 16, 2025
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