National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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Charleston, SC Local Forecast Office

21NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds 5 kt or less. Sunny. Seas around 2 ft.

      Light Wind
      2ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.

      Light Wind
      1-2ft

    • Tuesday

      Tuesday:ENE wind 10 to 15 kt increasing to 19 to 24 kt. A chance of showers and thunderstorms, mainly after 11am. Seas 2 ft building to 4 ft.

      ⇑ENE 24kt
      Waves Building4ft

    • Tuesday Night

      Tuesday Night:ENE wind 17 to 21 kt. Mostly clear. Seas around 5 ft.

      ENE 21kt
      5ft

    • Wednesday

      Wednesday:NE wind 17 to 21 kt. Sunny. Seas 4 to 5 ft.

      NE 21kt
      4-5ft

    • Wednesday Night

      Wednesday Night:ENE wind 19 to 22 kt decreasing to 16 to 19 kt after midnight. Mostly clear. Seas around 5 ft.

      ENE 22kt⇓
      5ft

    • Thursday

      Thursday:NE wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 4 to 5 ft.

      ⇑NE 22kt
      4-5ft

    • Thursday Night

      Thursday Night:ENE wind 13 to 18 kt decreasing to 8 to 13 kt after midnight. Winds could gust as high as 24 kt. A chance of showers and thunderstorms. Seas 5 ft subsiding to 3 ft.

      ENE 18kt⇓
      5ftWaves Subsiding

    • Friday

      Friday:ENE wind 9 to 11 kt. A chance of showers and thunderstorms, mainly before 2pm. Seas around 3 ft.

      ENE 11kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 2:45 am EDT Sep 14, 2026
Forecast Valid: 10am EDT Sep 14, 2026-6pm EDT Sep 20, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds 5 kt or less. Sunny. Seas around 2 ft.
Tonight
Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.
Tuesday
ENE wind 10 to 15 kt increasing to 19 to 24 kt. A chance of showers and thunderstorms, mainly after 11am. Seas 2 ft building to 4 ft.
Tuesday Night
ENE wind 17 to 21 kt. Mostly clear. Seas around 5 ft.
Wednesday
NE wind 17 to 21 kt. Sunny. Seas 4 to 5 ft.
Wednesday Night
ENE wind 19 to 22 kt decreasing to 16 to 19 kt after midnight. Mostly clear. Seas around 5 ft.
Thursday
NE wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 4 to 5 ft.
Thursday Night
ENE wind 13 to 18 kt decreasing to 8 to 13 kt after midnight. Winds could gust as high as 24 kt. A chance of showers and thunderstorms. Seas 5 ft subsiding to 3 ft.
Friday
ENE wind 9 to 11 kt. A chance of showers and thunderstorms, mainly before 2pm. Seas around 3 ft.

Winds and seas higher in and near tstms.

*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: 31.62°N 81.12°W
Last Update: 2:45 am EDT Sep 14, 2026
Forecast Valid: 10am EDT Sep 14, 2026-6pm EDT Sep 20, 2026
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