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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSE wind 6 to 9 kt. A chance of showers and thunderstorms, mainly before 4pm.   Seas 1 ft or less.

      SSE 9kt
      < 1ft

    • Tonight

      Tonight:SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 3am.   Seas 1 ft or less.

      SSE 7kt⇓
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly between 1pm and 2pm.   Seas 1 ft or less.

      ⇑SE 10kt
      < 1ft

    • Friday Night

      Friday Night:SE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am.   Seas 1 ft or less.

      SE 8kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SSE 5 to 9 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.

      ⇑SSE 9kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind around 6 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 2am.   Seas 1 ft or less.

      S 6kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms.   Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 5 to 8 kt. A slight chance of showers and thunderstorms.   Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. A chance of showers and thunderstorms.   Seas 1 ft or less.

      ⇑SSW 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:30 am EDT Aug 6, 2026
Forecast Valid: 12pm EDT Aug 6, 2026-6pm EDT Aug 12, 2026

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Detailed Forecast


This Afternoon
SSE wind 6 to 9 kt. A chance of showers and thunderstorms, mainly before 4pm. Seas 1 ft or less.
Tonight
SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly between 1pm and 2pm. Seas 1 ft or less.
Friday Night
SE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SSE 5 to 9 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 around 6 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.
Sunday Night
SSW wind 5 to 8 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. A chance of showers and thunderstorms. 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: 8:30 am EDT Aug 6, 2026
Forecast Valid: 12pm EDT Aug 6, 2026-6pm EDT Aug 12, 2026
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