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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:S wind around 9 kt. Sunny. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Tonight

      Tonight:S wind around 6 kt. Partly cloudy. Seas 1 ft or less.

      S 6kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind 5 to 7 kt. Mostly clear. Seas 1 ft or less.

      SSE 7kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 ft or less.

      ⇑SSW 13kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind around 11 kt. Mostly cloudy. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Thursday

      Thursday:SW wind 11 to 14 kt, with gusts as high as 21 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      SW 14kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind 7 to 9 kt becoming NNW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Friday

      Friday:N wind around 8 kt becoming E in the afternoon. A chance of showers. Seas 1 ft or less.

      N 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:25 pm EDT May 4, 2026
Forecast Valid: 2pm EDT May 4, 2026-6pm EDT May 10, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
S wind around 9 kt. Sunny. Seas 1 ft or less.
Tonight
S wind around 6 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.
Tuesday Night
SSE wind 5 to 7 kt. Mostly clear. Seas 1 ft or less.
Wednesday
SSW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 ft or less.
Wednesday Night
S wind around 11 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
SW wind 11 to 14 kt, with gusts as high as 21 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
SW wind 7 to 9 kt becoming NNW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.
Friday
N wind around 8 kt becoming E in the afternoon. A 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: 2:25 pm EDT May 4, 2026
Forecast Valid: 2pm EDT May 4, 2026-6pm EDT May 10, 2026
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