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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Friday

      Friday:Variable winds less than 5 kt becoming SSE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSE 9kt
      < 1ft

    • Friday Night

      Friday Night:SSE wind around 8 kt. Partly cloudy. Seas 1 ft or less.

      SSE 8kt
      < 1ft

    • Saturday

      Saturday:SSE wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. A chance of showers and thunderstorms, mainly before 1pm. Seas 1 ft or less.

      ⇑SSE 12kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind 8 to 11 kt. A chance of showers and thunderstorms between 7pm and 2am, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Sunday

      Sunday:SSW wind 9 to 12 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      ⇑SSW 17kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 12 to 14 kt, with gusts as high as 21 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Seas 1 ft or less.

      SSW 14kt
      < 1ft

    • Monday

      Monday:SSW wind 10 to 15 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Seas 1 ft or less.

      SSW 15kt
      < 1ft

    • Monday Night

      Monday Night:SSW wind 7 to 11 kt. Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm after 8pm. Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSW 6 to 11 kt in the morning. A chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑SSW 11kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Jul 31, 2026
Forecast Valid: 4am EDT Jul 31, 2026-6pm EDT Aug 6, 2026

View Nearby Observations

Detailed Forecast


Friday
Variable winds less than 5 kt becoming SSE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.
Friday Night
SSE wind around 8 kt. Partly cloudy. Seas 1 ft or less.
Saturday
SSE wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. A chance of showers and thunderstorms, mainly before 1pm. Seas 1 ft or less.
Saturday Night
S wind 8 to 11 kt. A chance of showers and thunderstorms between 7pm and 2am, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Sunday
SSW wind 9 to 12 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Sunday Night
SSW wind 12 to 14 kt, with gusts as high as 21 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Seas 1 ft or less.
Monday
SSW wind 10 to 15 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Seas 1 ft or less.
Monday Night
SSW wind 7 to 11 kt. Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm after 8pm. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSW 6 to 11 kt in the morning. 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 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: 2:40 am EDT Jul 31, 2026
Forecast Valid: 4am EDT Jul 31, 2026-6pm EDT Aug 6, 2026
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