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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 S 5 to 10 kt in the morning. Showers and thunderstorms likely, mainly after 3pm. Seas 1 ft or less.

      ⇑S 10kt
      < 1ft

    • Monday Night

      Monday Night:N wind 6 to 9 kt becoming NNE 11 to 14 kt in the evening. Winds could gust as high as 21 kt. Showers and thunderstorms likely, mainly before 7pm. Seas 1 ft or less.

      ⇑NNE 14kt
      < 1ft

    • Tuesday

      Tuesday:NNE wind 13 to 16 kt becoming ENE in the afternoon. Cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

      NNE 16kt
      < 1ft

    • Tuesday Night

      Tuesday Night:E wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

      E 10kt
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSE 6 to 11 kt in the morning. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      ⇑SSE 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind around 9 kt. A chance of showers and thunderstorms, mainly after 8pm. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Thursday

      Thursday:WNW wind around 7 kt becoming NNW in the morning. Sunny. Seas 1 ft or less.

      WNW 7kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds less than 5 kt becoming NNE around 6 kt after midnight. Mostly clear. Seas 1 ft or less.

      ⇑NNE 6kt
      < 1ft

    • Friday

      Friday:NNE wind 5 to 8 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

      NNE 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:32 am EDT May 11, 2026
Forecast Valid: 2am EDT May 11, 2026-6pm EDT May 17, 2026

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Detailed Forecast


Monday
Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Showers and thunderstorms likely, mainly after 3pm. Seas 1 ft or less.
Monday Night
N wind 6 to 9 kt becoming NNE 11 to 14 kt in the evening. Winds could gust as high as 21 kt. Showers and thunderstorms likely, mainly before 7pm. Seas 1 ft or less.
Tuesday
NNE wind 13 to 16 kt becoming ENE in the afternoon. Cloudy through mid morning, then gradual clearing. Seas 1 ft or less.
Tuesday Night
E wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSE 6 to 11 kt in the morning. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Wednesday Night
S wind around 9 kt. A chance of showers and thunderstorms, mainly after 8pm. Seas 1 ft or less.
Thursday
WNW wind around 7 kt becoming NNW in the morning. Sunny. Seas 1 ft or less.
Thursday Night
Variable winds less than 5 kt becoming NNE around 6 kt after midnight. Mostly clear. Seas 1 ft or less.
Friday
NNE wind 5 to 8 kt becoming ESE in the afternoon. Sunny. 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: 2:32 am EDT May 11, 2026
Forecast Valid: 2am EDT May 11, 2026-6pm EDT May 17, 2026
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