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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Today

      Today:SSW wind 9 to 13 kt. Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms likely between 2pm and 3pm, then showers and possibly a thunderstorm after 3pm. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Tonight

      Tonight:SSW wind 7 to 10 kt. Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 4pm. Seas 1 ft or less.

      ⇑S 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind 7 to 9 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Wednesday

      Wednesday:S wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm. Seas 1 ft or less.

      ⇑S 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 6 to 9 kt. A chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind 5 to 7 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

      SSE 7kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly before 2pm. Seas 1 ft or less.

      ⇑SE 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 5:38 am EDT Aug 3, 2026
Forecast Valid: 8am EDT Aug 3, 2026-6pm EDT Aug 9, 2026

View Nearby Observations

Detailed Forecast


Today
SSW wind 9 to 13 kt. Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms likely between 2pm and 3pm, then showers and possibly a thunderstorm after 3pm. Seas 1 ft or less.
Tonight
SSW wind 7 to 10 kt. Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 4pm. Seas 1 ft or less.
Tuesday Night
S wind 7 to 9 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Wednesday
S wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm. Seas 1 ft or less.
Wednesday Night
S wind 6 to 9 kt. A chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Thursday Night
SSE wind 5 to 7 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly before 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: 5:38 am EDT Aug 3, 2026
Forecast Valid: 8am EDT Aug 3, 2026-6pm EDT Aug 9, 2026
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