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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:SSW wind around 12 kt. Partly cloudy. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Thursday

      Thursday:SW wind 7 to 12 kt becoming S in the afternoon. Mostly sunny. Seas 1 ft or less.

      S 12kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind 8 to 10 kt. Mostly cloudy. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Friday

      Friday:SSW wind 5 to 10 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind 5 to 7 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      SSW 7kt
      < 1ft

    • Saturday

      Saturday:WSW wind 5 to 8 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      WSW 8kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

      Sunday:NW wind around 7 kt. Showers and thunderstorms likely, mainly 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


Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT Jul 22, 2026
Forecast Valid: 11pm EDT Jul 22, 2026-6pm EDT Jul 29, 2026

View Nearby Observations

Detailed Forecast


Overnight
SSW wind around 12 kt. Partly cloudy. Seas 1 ft or less.
Thursday
SW wind 7 to 12 kt becoming S in the afternoon. Mostly sunny. Seas 1 ft or less.
Thursday Night
S wind 8 to 10 kt. Mostly cloudy. Seas 1 ft or less.
Friday
SSW wind 5 to 10 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Friday Night
SSW wind 5 to 7 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Saturday
WSW wind 5 to 8 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Sunday
NW wind around 7 kt. Showers and thunderstorms likely, mainly 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.

Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 86 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.
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ABOUT THIS FORECAST

Point Forecast: 32.76°N 79.9°W
Last Update: 8:30 pm EDT Jul 22, 2026
Forecast Valid: 11pm EDT Jul 22, 2026-6pm EDT Jul 29, 2026
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