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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:NE wind around 14 kt, with gusts as high as 22 kt. A slight chance of showers after 2am. Seas 1 ft or less.

      NE 14kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 26 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas 1 ft or less.

      ⇑ENE 19kt
      < 1ft

    • Tuesday Night

      Tuesday Night:ENE wind 9 to 13 kt, with gusts as high as 21 kt. A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Seas 1 ft or less.

      ENE 13kt
      < 1ft

    • Wednesday

      Wednesday:E wind 10 to 13 kt. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

      E 13kt
      < 1ft

    • Wednesday Night

      Wednesday Night:E wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 5am, then a slight chance of showers and thunderstorms after 5am. Seas 1 ft or less.

      E 8kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Seas 1 ft or less.

      ⇑SSE 7kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind 5 to 7 kt becoming SW after midnight. A chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms, mainly after 8am. Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

      SSW 7kt⇓
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 10:17 pm EDT Sep 7, 2026
Forecast Valid: 11pm EDT Sep 7, 2026-6pm EDT Sep 14, 2026

View Nearby Observations

Detailed Forecast


Overnight
NE wind around 14 kt, with gusts as high as 22 kt. A slight chance of showers after 2am. Seas 1 ft or less.
Tuesday
ENE wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 26 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas 1 ft or less.
Tuesday Night
ENE wind 9 to 13 kt, with gusts as high as 21 kt. A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Seas 1 ft or less.
Wednesday
E wind 10 to 13 kt. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.
Wednesday Night
E wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 5am, then a slight chance of showers and thunderstorms after 5am. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Seas 1 ft or less.
Thursday Night
S wind 5 to 7 kt becoming SW after midnight. A chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms, mainly after 8am. Seas 1 ft or less.
Friday Night
SSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly after 2am. 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 85 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: 10:17 pm EDT Sep 7, 2026
Forecast Valid: 11pm EDT Sep 7, 2026-6pm EDT Sep 14, 2026
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