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]

    • Wednesday

      Wednesday:SSW wind 9 to 12 kt increasing to 12 to 15 kt in the afternoon. Showers and thunderstorms likely, mainly before 2pm. Seas 1 ft or less.

      ⇑SSW 15kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind 8 to 11 kt decreasing to 5 to 8 kt after midnight. A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Seas 1 ft or less.

      SW 11kt⇓
      < 1ft

    • Thursday

      Thursday:NNW wind around 7 kt becoming NE in the afternoon. A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Seas 1 ft or less.

      NNW 7kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. A slight chance of showers before 8pm. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday

      Friday:ENE wind around 9 kt. A chance of showers, mainly after 2pm. Seas 1 ft or less.

      ENE 9kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Showers likely, mainly after 2am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:N wind 8 to 11 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      N 11kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind 7 to 9 kt. A chance of showers before 2am. Seas 1 ft or less.

      N 9kt
      < 1ft

    • Sunday

      Sunday:N wind 8 to 10 kt. Partly sunny. Seas 1 ft or less.

      N 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT Apr 28, 2026
Forecast Valid: 1am EDT Apr 29, 2026-6pm EDT May 5, 2026

View Nearby Observations

Detailed Forecast


Wednesday
SSW wind 9 to 12 kt increasing to 12 to 15 kt in the afternoon. Showers and thunderstorms likely, mainly before 2pm. Seas 1 ft or less.
Wednesday Night
SW wind 8 to 11 kt decreasing to 5 to 8 kt after midnight. A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Seas 1 ft or less.
Thursday
NNW wind around 7 kt becoming NE in the afternoon. A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. A slight chance of showers before 8pm. Seas 1 ft or less.
Friday
ENE wind around 9 kt. A chance of showers, mainly after 2pm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Showers likely, mainly after 2am. Seas 1 ft or less.
Saturday
N wind 8 to 11 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Saturday Night
N wind 7 to 9 kt. A chance of showers before 2am. Seas 1 ft or less.
Sunday
N wind 8 to 10 kt. Partly sunny. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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: 8:30 pm EDT Apr 28, 2026
Forecast Valid: 1am EDT Apr 29, 2026-6pm EDT May 5, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data