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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 7 to 10 kt. Partly cloudy. Seas 1 ft or less.

      SW 10kt
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly between 3pm and 5pm.   Seas 1 ft or less.

      ⇑SSW 10kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind 7 to 9 kt. A chance of showers and thunderstorms, mainly before midnight.   Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Sunday

      Sunday:SW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers and thunderstorms after 2pm.   Seas 1 ft or less.

      ⇑SW 14kt
      < 1ft

    • Sunday Night

      Sunday Night:SW wind 10 to 13 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 8pm.   Seas 1 ft or less.

      SW 13kt
      < 1ft

    • Monday

      Monday:WSW wind 8 to 13 kt. Showers likely and possibly a thunderstorm after 2pm.   Seas 1 ft or less.

      WSW 13kt
      < 1ft

    • Monday Night

      Monday Night:WSW wind 8 to 11 kt. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am.   Seas 1 ft or less.

      WSW 11kt
      < 1ft

    • Tuesday

      Tuesday:W wind 9 to 11 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am.   Seas 1 ft or less.

      W 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind around 9 kt. A chance of showers and thunderstorms.   Seas 1 ft or less.

      WSW 9kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 3:06 pm EDT Jun 12, 2026
Forecast Valid: 7pm EDT Jun 12, 2026-6pm EDT Jun 19, 2026

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Detailed Forecast


Tonight
SW wind 7 to 10 kt. Partly cloudy. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly between 3pm and 5pm. Seas 1 ft or less.
Saturday Night
SSW wind 7 to 9 kt. A chance of showers and thunderstorms, mainly before midnight. Seas 1 ft or less.
Sunday
SW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Sunday Night
SW wind 10 to 13 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
Monday
WSW wind 8 to 13 kt. Showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Monday Night
WSW wind 8 to 11 kt. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Tuesday
W wind 9 to 11 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Seas 1 ft or less.
Tuesday Night
WSW wind around 9 kt. A chance of showers and thunderstorms. 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 82 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: 3:06 pm EDT Jun 12, 2026
Forecast Valid: 7pm EDT Jun 12, 2026-6pm EDT Jun 19, 2026
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