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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Today

      Today:W wind 6 to 11 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Tonight

      Tonight:WSW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Showers and thunderstorms, mainly before 1am. Seas 1 ft or less.

      WSW 9kt⇓
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Monday Night

      Monday Night:SW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      SW 6kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Showers and thunderstorms likely, mainly after 2pm. Seas 1 ft or less.

      ⇑S 7kt
      < 1ft

    • Tuesday Night

      Tuesday 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

    • Wednesday

      Wednesday:WNW wind 5 to 10 kt becoming WSW in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      WSW 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:WSW wind 6 to 8 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

      WSW 8kt
      < 1ft

    • Thursday

      Thursday:W wind 6 to 10 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      W 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:32 am EDT Jul 12, 2026
Forecast Valid: 11am EDT Jul 12, 2026-6pm EDT Jul 18, 2026

View Nearby Observations

Detailed Forecast


Today
W wind 6 to 11 kt becoming S in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Tonight
WSW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Showers and thunderstorms, mainly before 1am. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Monday Night
SW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Showers and thunderstorms likely, mainly after 2pm. Seas 1 ft or less.
Tuesday 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.
Wednesday
WNW wind 5 to 10 kt becoming WSW in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Wednesday Night
WSW wind 6 to 8 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
Thursday
W wind 6 to 10 kt. A slight 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 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: 8:32 am EDT Jul 12, 2026
Forecast Valid: 11am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
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