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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • 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. Partly cloudy. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑S 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind around 8 kt. Partly cloudy. Seas 1 ft or less.

      S 8kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 ft or less.

      ⇑SSW 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind around 11 kt, with gusts as high as 20 kt. A slight chance of showers after 2am. Seas 1 ft or less.

      SSW 11kt
      < 1ft

    • Thursday

      Thursday:SW wind 13 to 16 kt, with gusts as high as 25 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      SW 16kt
      < 1ft

    • Thursday Night

      Thursday Night:WSW wind around 10 kt becoming NNW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Seas 1 ft or less.

      WSW 10kt
      < 1ft

    • Friday

      Friday:NNE wind 7 to 10 kt becoming E in the afternoon. A slight chance of showers. Seas 1 ft or less.

      NNE 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT May 3, 2026
Forecast Valid: 1am EDT May 4, 2026-6pm EDT May 10, 2026

View Nearby Observations

Detailed Forecast


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. Partly cloudy. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.
Tuesday Night
S wind around 8 kt. Partly cloudy. Seas 1 ft or less.
Wednesday
SSW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 ft or less.
Wednesday Night
SSW wind around 11 kt, with gusts as high as 20 kt. A slight chance of showers after 2am. Seas 1 ft or less.
Thursday
SW wind 13 to 16 kt, with gusts as high as 25 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
WSW wind around 10 kt becoming NNW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Seas 1 ft or less.
Friday
NNE wind 7 to 10 kt becoming E in the afternoon. A slight chance of showers. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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: 8:30 pm EDT May 3, 2026
Forecast Valid: 1am EDT May 4, 2026-6pm EDT May 10, 2026
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