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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Today

      Today:S wind 5 to 10 kt. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Tonight

      Tonight:SSW wind 5 to 8 kt. A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Saturday

      Saturday:SW wind 6 to 8 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

      SW 8kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

      Sunday:NNW wind around 6 kt becoming E in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      N 6kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

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

      ⇑SSE 9kt
      < 1ft

    • Monday Night

      Monday Night:S wind 5 to 7 kt becoming SSW after midnight. Partly cloudy. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSW 7 to 12 kt in the morning. Mostly sunny. Seas 1 ft or less.

      ⇑SSW 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Jul 24, 2026
Forecast Valid: 7am EDT Jul 24, 2026-6pm EDT Jul 30, 2026

View Nearby Observations

Detailed Forecast


Today
S wind 5 to 10 kt. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less.
Tonight
SSW wind 5 to 8 kt. A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.
Saturday
SW wind 6 to 8 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Sunday
NNW wind around 6 kt becoming E in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SSE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
S wind 5 to 7 kt becoming SSW after midnight. Partly cloudy. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSW 7 to 12 kt in the morning. Mostly 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 87 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 24, 2026
Forecast Valid: 7am EDT Jul 24, 2026-6pm EDT Jul 30, 2026
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