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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑S 8kt
      < 1ft

    • Tonight

      Tonight:S wind around 6 kt becoming variable and less than 5 kt. A chance of showers and thunderstorms, mainly after midnight. Seas 1 ft or less.

      S 6kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Seas 1 ft or less.

      ⇑S 10kt
      < 1ft

    • Thursday Night

      Thursday Night:SSW wind around 8 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Friday Night

      Friday Night:S wind around 6 kt becoming variable and less than 5 kt in the evening. Showers and possibly a thunderstorm. Seas 1 ft or less.

      S 6kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Showers and possibly a thunderstorm. Seas 1 ft or less.

      ⇑SE 6kt
      < 1ft

    • Saturday Night

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

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming E 5 to 7 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑E 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:32 am EDT Aug 26, 2026
Forecast Valid: 10am EDT Aug 26, 2026-6pm EDT Sep 1, 2026

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Detailed Forecast


Today
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.
Tonight
S wind around 6 kt becoming variable and less than 5 kt. A chance of showers and thunderstorms, mainly after midnight. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Seas 1 ft or less.
Thursday Night
SSW wind around 8 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Friday Night
S wind around 6 kt becoming variable and less than 5 kt in the evening. Showers and possibly a thunderstorm. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Showers and possibly a thunderstorm. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming E 5 to 7 kt in the afternoon. 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: 8:32 am EDT Aug 26, 2026
Forecast Valid: 10am EDT Aug 26, 2026-6pm EDT Sep 1, 2026
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