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 9 to 12 kt becoming WSW 6 to 9 kt after midnight. A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Seas 1 ft or less.

      SSW 12kt⇓
      < 1ft

    • Washington's Birthday

      Washington's Birthday:N wind 9 to 14 kt. Cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

      N 14kt
      < 1ft

    • Monday Night

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

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:NE wind 5 to 7 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

      ESE 7kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:SSW wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Mostly cloudy. Seas 1 ft or less.

      ⇑SSW 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind around 9 kt. Mostly cloudy. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Thursday

      Thursday:SW wind 7 to 11 kt. A slight chance of showers. Seas 1 ft or less.

      SW 11kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind around 8 kt. Mostly cloudy. Seas 1 ft or less.

      SW 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:40 pm EST Feb 15, 2026
Forecast Valid: 8pm EST Feb 15, 2026-6pm EST Feb 22, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 9 to 12 kt becoming WSW 6 to 9 kt after midnight. A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Seas 1 ft or less.
Washington's Birthday
N wind 9 to 14 kt. Cloudy through mid morning, then gradual clearing. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Tuesday
NE wind 5 to 7 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Wednesday
SSW wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Mostly cloudy. Seas 1 ft or less.
Wednesday Night
SW wind around 9 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
SW wind 7 to 11 kt. A slight chance of showers. Seas 1 ft or less.
Thursday Night
SW wind around 8 kt. 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 50 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: 7:40 pm EST Feb 15, 2026
Forecast Valid: 8pm EST Feb 15, 2026-6pm EST Feb 22, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data