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Jacksonville, FL Local Forecast Office

4NM SE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:NE wind 9 to 13 kt. Mostly cloudy. Seas around 2 ft.

      Low: 48 °F

      NE 13kt
      2ft

    • Saturday

      Saturday:ENE wind 14 to 17 kt. Mostly cloudy. Seas around 3 ft.

      High: 64 °F

      ENE 17kt
      3ft

    • Saturday Night

      Saturday Night:ENE wind 13 to 18 kt decreasing to 7 to 12 kt after midnight. Winds could gust as high as 25 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 59 °F

      ENE 18kt⇓
      3-4ft

    • Sunday

      Sunday:NE wind around 7 kt. Mostly sunny. Seas around 3 ft.

      High: 68 °F

      NE 7kt
      3ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming N 5 to 9 kt after midnight. Mostly cloudy. Seas around 3 ft.

      Low: 59 °F

      ⇑N 9kt
      3ft

    • Monday

      Monday:NE wind 12 to 17 kt, with gusts as high as 24 kt. A slight chance of showers. Seas 3 to 4 ft.

      High: 65 °F

      NE 17kt
      3-4ft

    • Monday Night

      Monday Night:NE wind 10 to 17 kt becoming SSE after midnight. Winds could gust as high as 24 kt. A chance of showers and thunderstorms, mainly after 1am. Seas 3 to 4 ft.

      Low: 63 °F

      NE 17kt
      3-4ft

    • Tuesday

      Tuesday:SSW wind 13 to 15 kt becoming WNW in the afternoon. Winds could gust as high as 21 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.

      High: 68 °F

      SW 15kt
      3ft

    • Tuesday Night

      Tuesday Night:NW wind 13 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 49 °F

      NW 16kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:36 pm EST Nov 28, 2025
Forecast Valid: 11pm EST Nov 28, 2025-6pm EST Dec 5, 2025

View Nearby Observations

Detailed Forecast


Overnight
NE wind 9 to 13 kt. Mostly cloudy. Seas around 2 ft.
Saturday
ENE wind 14 to 17 kt. Mostly cloudy. Seas around 3 ft.
Saturday Night
ENE wind 13 to 18 kt decreasing to 7 to 12 kt after midnight. Winds could gust as high as 25 kt. Mostly cloudy. Seas 3 to 4 ft.
Sunday
NE wind around 7 kt. Mostly sunny. Seas around 3 ft.
Sunday Night
Variable winds less than 5 kt becoming N 5 to 9 kt after midnight. Mostly cloudy. Seas around 3 ft.
Monday
NE wind 12 to 17 kt, with gusts as high as 24 kt. A slight chance of showers. Seas 3 to 4 ft.
Monday Night
NE wind 10 to 17 kt becoming SSE after midnight. Winds could gust as high as 24 kt. A chance of showers and thunderstorms, mainly after 1am. Seas 3 to 4 ft.
Tuesday
SSW wind 13 to 15 kt becoming WNW in the afternoon. Winds could gust as high as 21 kt. Showers likely and possibly a thunderstorm. Seas around 3 ft.
Tuesday Night
NW wind 13 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 3 to 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: 31.24°N 81.25°W
Last Update: 7:36 pm EST Nov 28, 2025
Forecast Valid: 11pm EST Nov 28, 2025-6pm EST Dec 5, 2025
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