National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind 7 to 9 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Friday

      Friday:SW wind 5 to 8 kt becoming S 8 to 11 kt in the afternoon. A chance of showers and thunderstorms, mainly after 3pm. Seas 1 ft or less.

      ⇑S 11kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind 5 to 8 kt. A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Saturday

      Saturday:SW wind 5 to 8 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      SW 8kt
      < 1ft

    • Saturday Night

      Saturday Night:SW wind around 6 kt becoming variable and less than 5 kt. Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      SW 6kt⇓
      < 1ft

    • Sunday

      Sunday:WNW wind around 7 kt becoming WSW in the afternoon. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Seas 1 ft or less.

      NW 7kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Showers and thunderstorms likely, mainly before 8pm. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SE 5 to 8 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SE 8kt
      < 1ft

    • Monday Night

      Monday Night:SSE wind 5 to 7 kt becoming SSW after midnight. Mostly clear. Seas 1 ft or less.

      SSE 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:32 pm EDT Jul 23, 2026
Forecast Valid: 10pm EDT Jul 23, 2026-6pm EDT Jul 30, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 7 to 9 kt. Mostly cloudy. Seas 1 ft or less.
Friday
SW wind 5 to 8 kt becoming S 8 to 11 kt in the afternoon. A chance of showers and thunderstorms, mainly after 3pm. Seas 1 ft or less.
Friday Night
SSW wind 5 to 8 kt. A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.
Saturday
SW wind 5 to 8 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Saturday Night
SW wind around 6 kt becoming variable and less than 5 kt. Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Sunday
WNW wind around 7 kt becoming WSW in the afternoon. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Showers and thunderstorms likely, mainly before 8pm. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SE 5 to 8 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
SSE wind 5 to 7 kt becoming SSW after midnight. Mostly clear. 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 87 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 32.76°N 79.9°W
Last Update: 8:32 pm EDT Jul 23, 2026
Forecast Valid: 10pm EDT Jul 23, 2026-6pm EDT Jul 30, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data