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:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑ESE 6kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind around 6 kt. Increasing clouds. Seas 1 ft or less.

      E 6kt
      < 1ft

    • Sunday

      Sunday:ESE wind 7 to 11 kt. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.

      ESE 11kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 6 to 9 kt becoming S 9 to 12 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

      ⇑S 12kt
      < 1ft

    • Monday

      Monday:SSW wind 16 to 20 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      SSW 20kt
      < 1ft

    • Monday Night

      Monday Night:W wind around 16 kt becoming WNW after midnight. Winds could gust as high as 24 kt. A slight chance of showers before 2am. Seas 1 ft or less.

      W 16kt
      < 1ft

    • Tuesday

      Tuesday:WNW wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.

      WNW 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NW wind around 7 kt becoming N after midnight. Mostly cloudy. Seas 1 ft or less.

      N 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT Mar 13, 2026
Forecast Valid: 10pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
E wind around 6 kt. Increasing clouds. Seas 1 ft or less.
Sunday
ESE wind 7 to 11 kt. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.
Sunday Night
SE wind 6 to 9 kt becoming S 9 to 12 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Monday
SSW wind 16 to 20 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Monday Night
W wind around 16 kt becoming WNW after midnight. Winds could gust as high as 24 kt. A slight chance of showers before 2am. Seas 1 ft or less.
Tuesday
WNW wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
NW wind around 7 kt becoming N after midnight. Mostly cloudy. 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 61 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: 8:30 pm EDT Mar 13, 2026
Forecast Valid: 10pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data