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Charleston, SC Local Forecast Office

21NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind around 8 kt. Partly sunny. Seas 1 to 2 ft.

      S 8kt
      1-2ft

    • Tonight

      Tonight:Variable winds less than 5 kt becoming NNW 5 to 9 kt after midnight. A chance of showers, mainly after 5am.   Seas around 1 ft.

      ⇑NNW 9kt
      1ft

    • Sunday

      Sunday:NNW wind 12 to 16 kt becoming WNW in the afternoon. Winds could gust as high as 23 kt. Showers, mainly before 1pm.   Seas 1 to 2 ft.

      NW 16kt
      1-2ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:WNW wind 10 to 13 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 to 2 ft.

      WNW 13kt
      1-2ft

    • M.L.King Day

      M.L.King Day:WNW wind around 8 kt. Sunny. Seas around 1 ft.

      WNW 8kt
      1ft

    • Monday Night

      Monday Night:WNW wind 7 to 9 kt. Mostly clear. Seas around 2 ft.

      WNW 9kt
      2ft

    • Tuesday

      Tuesday:NNW wind 8 to 10 kt. Mostly sunny. Seas around 2 ft.

      NNW 10kt
      2ft

    • Tuesday Night

      Tuesday Night:NNE wind 6 to 9 kt. Partly cloudy. Seas around 2 ft.

      NNE 9kt
      2ft

    • Wednesday

      Wednesday:NNE wind around 10 kt. Partly sunny. Seas around 2 ft.

      NNE 10kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 1:30 pm EST Jan 17, 2026
Forecast Valid: 2pm EST Jan 17, 2026-6pm EST Jan 23, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
S wind around 8 kt. Partly sunny. Seas 1 to 2 ft.
Tonight
Variable winds less than 5 kt becoming NNW 5 to 9 kt after midnight. A chance of showers, mainly after 5am. Seas around 1 ft.
Sunday
NNW wind 12 to 16 kt becoming WNW in the afternoon. Winds could gust as high as 23 kt. Showers, mainly before 1pm. Seas 1 to 2 ft.
Sunday Night
WNW wind 10 to 13 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 to 2 ft.
M.L.King Day
WNW wind around 8 kt. Sunny. Seas around 1 ft.
Monday Night
WNW wind 7 to 9 kt. Mostly clear. Seas around 2 ft.
Tuesday
NNW wind 8 to 10 kt. Mostly sunny. Seas around 2 ft.
Tuesday Night
NNE wind 6 to 9 kt. Partly cloudy. Seas around 2 ft.
Wednesday
NNE wind around 10 kt. Partly sunny. Seas around 2 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: 31.62°N 81.12°W
Last Update: 1:30 pm EST Jan 17, 2026
Forecast Valid: 2pm EST Jan 17, 2026-6pm EST Jan 23, 2026
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