For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms, mainly after 10am.   Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Tonight

      Tonight:S wind 6 to 8 kt becoming SW after midnight. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am.   Seas 1 ft or less.

      S 8kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. A chance of showers and thunderstorms, mainly after 5pm.   Seas 1 ft or less.

      ⇑SSW 8kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly before 7pm.   Seas 1 ft or less.

      SSW 7kt⇓
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds less than 5 kt becoming ENE around 6 kt after midnight. Mostly clear. Seas 1 ft or less.

      ⇑ENE 6kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind 12 to 17 kt. Mostly sunny. Seas 1 ft or less.

      ENE 17kt
      < 1ft

    • Tuesday Night

      Tuesday Night:ENE wind 9 to 12 kt. Mostly clear. Seas 1 ft or less.

      ENE 12kt
      < 1ft

    • Wednesday

      Wednesday:ENE wind 10 to 15 kt, with gusts as high as 21 kt. Sunny. Seas 1 ft or less.

      ENE 15kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Sep 12, 2026
Forecast Valid: 6am EDT Sep 12, 2026-6pm EDT Sep 18, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A chance of showers and thunderstorms, mainly after 10am. Seas 1 ft or less.
Tonight
S wind 6 to 8 kt becoming SW after midnight. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. A chance of showers and thunderstorms, mainly after 5pm. Seas 1 ft or less.
Sunday Night
SSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly before 7pm. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Monday Night
Variable winds less than 5 kt becoming ENE around 6 kt after midnight. Mostly clear. Seas 1 ft or less.
Tuesday
ENE wind 12 to 17 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
ENE wind 9 to 12 kt. Mostly clear. Seas 1 ft or less.
Wednesday
ENE wind 10 to 15 kt, with gusts as high as 21 kt. Sunny. 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 84 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...

ABOUT THIS FORECAST

Point Forecast: 32.76°N 79.9°W
Last Update: 2:40 am EDT Sep 12, 2026
Forecast Valid: 6am EDT Sep 12, 2026-6pm EDT Sep 18, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data