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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Independence Day

      Independence Day:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind 5 to 9 kt. Mostly clear. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 7 to 12 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑S 12kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Monday

      Monday:SSW wind 7 to 10 kt increasing to 11 to 14 kt in the afternoon. A slight chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑SSW 14kt
      < 1ft

    • Monday Night

      Monday Night:SSW wind 10 to 13 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind 8 to 11 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.

      ⇑SSW 14kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind 10 to 12 kt. A slight chance of showers and thunderstorms before 2am. Seas 1 ft or less.

      SW 12kt
      < 1ft

    • Wednesday

      Wednesday:WSW wind 8 to 13 kt becoming SSW in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      SSW 13kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:32 pm EDT Jul 3, 2026
Forecast Valid: 2am EDT Jul 4, 2026-6pm EDT Jul 10, 2026

View Nearby Observations

Detailed Forecast


Independence Day
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
S wind 5 to 9 kt. Mostly clear. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming S 7 to 12 kt in the morning. Sunny. Seas 1 ft or less.
Sunday Night
SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Monday
SSW wind 7 to 10 kt increasing to 11 to 14 kt in the afternoon. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Monday Night
SSW wind 10 to 13 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Tuesday
SSW wind 8 to 11 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.
Tuesday Night
SW wind 10 to 12 kt. A slight chance of showers and thunderstorms before 2am. Seas 1 ft or less.
Wednesday
WSW wind 8 to 13 kt becoming SSW in the afternoon. A chance of showers and thunderstorms after 2pm. 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 88 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: 8:32 pm EDT Jul 3, 2026
Forecast Valid: 2am EDT Jul 4, 2026-6pm EDT Jul 10, 2026
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