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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

      ⇑SSE 8kt
      < 1ft

    • Tonight

      Tonight:S wind 5 to 7 kt. Partly cloudy. 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 4pm. Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Friday Night

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

      SW 7kt
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      ⇑S 8kt
      < 1ft

    • Saturday Night

      Saturday Night:S 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.

      S 7kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.

      ⇑SSW 7kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.

      ⇑SSE 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Sep 10, 2026
Forecast Valid: 6am EDT Sep 10, 2026-6pm EDT Sep 16, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.
Tonight
S wind 5 to 7 kt. Partly cloudy. 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 4pm. Seas 1 ft or less.
Friday Night
SW wind 5 to 7 kt. A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Saturday Night
S 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.
Sunday
Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. 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 84 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: 2:40 am EDT Sep 10, 2026
Forecast Valid: 6am EDT Sep 10, 2026-6pm EDT Sep 16, 2026
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