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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SW wind around 6 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      SW 6kt
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 9 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Patchy fog before 7am. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds less than 5 kt becoming WSW around 6 kt after midnight. Showers and possibly a thunderstorm. Seas 1 ft or less.

      ⇑WSW 6kt
      < 1ft

    • Sunday

      Sunday:W wind 8 to 11 kt becoming WNW 13 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

      ⇑WNW 16kt
      < 1ft

    • Sunday Night

      Sunday Night:NW wind 16 to 18 kt. Mostly clear. Seas 1 ft or less.

      NW 18kt
      < 1ft

    • Monday

      Monday:NW wind around 15 kt, with gusts as high as 21 kt. Sunny. Seas 1 ft or less.

      NW 15kt
      < 1ft

    • Monday Night

      Monday Night:NW wind 10 to 12 kt. Mostly clear. Seas 1 ft or less.

      NW 12kt
      < 1ft

    • Tuesday

      Tuesday:NNW wind 5 to 8 kt becoming WSW in the afternoon. Sunny. Seas 1 ft or less.

      NNW 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind 5 to 7 kt. Partly cloudy. Seas 1 ft or less.

      WSW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:32 pm EST Feb 20, 2026
Forecast Valid: 9pm EST Feb 20, 2026-6pm EST Feb 27, 2026

View Nearby Observations

Detailed Forecast


Tonight
SW wind around 6 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Saturday
SSW wind 5 to 9 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Patchy fog before 7am. Seas 1 ft or less.
Saturday Night
Variable winds less than 5 kt becoming WSW around 6 kt after midnight. Showers and possibly a thunderstorm. Seas 1 ft or less.
Sunday
W wind 8 to 11 kt becoming WNW 13 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.
Sunday Night
NW wind 16 to 18 kt. Mostly clear. Seas 1 ft or less.
Monday
NW wind around 15 kt, with gusts as high as 21 kt. Sunny. Seas 1 ft or less.
Monday Night
NW wind 10 to 12 kt. Mostly clear. Seas 1 ft or less.
Tuesday
NNW wind 5 to 8 kt becoming WSW in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
WSW wind 5 to 7 kt. Partly cloudy. Seas 1 ft or less.

Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 54 degrees.

*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: 32.76°N 79.9°W
Last Update: 7:32 pm EST Feb 20, 2026
Forecast Valid: 9pm EST Feb 20, 2026-6pm EST Feb 27, 2026
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