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Charleston, SC Local Forecast Office

21NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:NNE wind 5 to 7 kt. Mostly sunny. Seas around 3 ft.

      NNE 7kt
      3ft

    • Friday Night

      Friday Night:NNE wind 6 to 9 kt increasing to 11 to 14 kt after midnight. Winds could gust as high as 20 kt. Increasing clouds. Seas around 3 ft.

      ⇑NNE 14kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:NE wind 16 to 21 kt, with gusts as high as 29 kt. A chance of showers after 1pm.   Seas 4 to 5 ft.

      NE 21kt
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday Night

      Saturday Night:NNE wind 16 to 21 kt decreasing to 9 to 14 kt. Winds could gust as high as 28 kt. A chance of rain.   Seas 5 to 6 ft.

      NNE 21kt⇓
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday

      Sunday:NE wind 6 to 9 kt becoming SSE 9 to 12 kt in the afternoon. A slight chance of showers.   Seas around 4 ft.

      ⇑SSE 12kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:S wind around 15 kt becoming WSW after midnight. Winds could gust as high as 24 kt. Showers.   Seas 4 to 5 ft.

      SSW 15kt
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:WNW wind 16 to 20 kt, with gusts as high as 27 kt. Mostly sunny. Seas 3 to 4 ft.

      WNW 20kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:NW wind 17 to 20 kt decreasing to 13 to 16 kt after midnight. Winds could gust as high as 28 kt. Mostly clear. Seas around 3 ft.

      NW 20kt⇓
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:NNW wind 6 to 11 kt becoming W in the afternoon. Sunny. Seas around 2 ft.

      NNW 11kt
      2ft

      Small Craft Advisory
      Small Craft Advisory


Associated Zone Forecast which includes this point

Last Update: 1:30 am EST Jan 23, 2026
Forecast Valid: 3am EST Jan 23, 2026-6pm EST Jan 29, 2026

View Nearby Observations

Detailed Forecast


Friday
NNE wind 5 to 7 kt. Mostly sunny. Seas around 3 ft.
Friday Night
NNE wind 6 to 9 kt increasing to 11 to 14 kt after midnight. Winds could gust as high as 20 kt. Increasing clouds. Seas around 3 ft.
Saturday
NE wind 16 to 21 kt, with gusts as high as 29 kt. A chance of showers after 1pm. Seas 4 to 5 ft.
Saturday Night
NNE wind 16 to 21 kt decreasing to 9 to 14 kt. Winds could gust as high as 28 kt. A chance of rain. Seas 5 to 6 ft.
Sunday
NE wind 6 to 9 kt becoming SSE 9 to 12 kt in the afternoon. A slight chance of showers. Seas around 4 ft.
Sunday Night
S wind around 15 kt becoming WSW after midnight. Winds could gust as high as 24 kt. Showers. Seas 4 to 5 ft.
Monday
WNW wind 16 to 20 kt, with gusts as high as 27 kt. Mostly sunny. Seas 3 to 4 ft.
Monday Night
NW wind 17 to 20 kt decreasing to 13 to 16 kt after midnight. Winds could gust as high as 28 kt. Mostly clear. Seas around 3 ft.
Tuesday
NNW wind 6 to 11 kt becoming W in the afternoon. 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 am EST Jan 23, 2026
Forecast Valid: 3am EST Jan 23, 2026-6pm EST Jan 29, 2026
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