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Jacksonville, FL Local Forecast Office

4NM SE Altamaha Sound FL

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind 7 to 10 kt. A chance of showers and thunderstorms.   Seas around 2 ft.

      High: 85 °F

      S 10kt
      2ft

    • Tonight

      Tonight:SSW wind around 10 kt. A slight chance of showers and thunderstorms before 1am.   Seas around 2 ft.

      Low: 78 °F

      SSW 10kt
      2ft

    • Thursday

      Thursday:SW wind 7 to 11 kt becoming S in the afternoon. A chance of showers and thunderstorms, mainly after 2pm.   Seas around 2 ft.

      High: 87 °F

      S 11kt
      2ft

    • Thursday Night

      Thursday Night:S wind 9 to 12 kt. A chance of showers and thunderstorms, mainly before 8pm.   Seas around 2 ft.

      Low: 80 °F

      S 12kt
      2ft

    • Friday

      Friday:WSW wind 8 to 10 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm.   Seas around 2 ft.

      High: 87 °F

      S 10kt
      2ft

    • Friday Night

      Friday Night:S wind 9 to 12 kt becoming SW after midnight. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.   Seas 2 to 3 ft.

      Low: 79 °F

      S 12kt
      2-3ft

    • Saturday

      Saturday:WSW wind 6 to 9 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm.   Seas around 2 ft.

      High: 88 °F

      S 9kt
      2ft

    • Saturday Night

      Saturday Night:S wind around 10 kt becoming WSW after midnight. A chance of showers and thunderstorms, mainly before 8pm.   Seas around 2 ft.

      Low: 79 °F

      S 10kt
      2ft

    • Sunday

      Sunday:W wind 6 to 8 kt becoming SSW in the afternoon. A chance of showers and thunderstorms after 2pm.   Seas around 2 ft.

      High: 89 °F

      W 8kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:26 am EDT Jul 9, 2025
Forecast Valid: 10am EDT Jul 9, 2025-6pm EDT Jul 15, 2025

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Detailed Forecast


Today
S wind 7 to 10 kt. A chance of showers and thunderstorms. Seas around 2 ft.
Tonight
SSW wind around 10 kt. A slight chance of showers and thunderstorms before 1am. Seas around 2 ft.
Thursday
SW wind 7 to 11 kt becoming S in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas around 2 ft.
Thursday Night
S wind 9 to 12 kt. A chance of showers and thunderstorms, mainly before 8pm. Seas around 2 ft.
Friday
WSW wind 8 to 10 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Friday Night
S wind 9 to 12 kt becoming SW after midnight. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Seas 2 to 3 ft.
Saturday
WSW wind 6 to 9 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Saturday Night
S wind around 10 kt becoming WSW after midnight. A chance of showers and thunderstorms, mainly before 8pm. Seas around 2 ft.
Sunday
W wind 6 to 8 kt becoming SSW in the afternoon. A chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Winds and waves 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: 31.24°N 81.25°W
Last Update: 7:26 am EDT Jul 9, 2025
Forecast Valid: 10am EDT Jul 9, 2025-6pm EDT Jul 15, 2025
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