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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SW wind around 6 kt. Mostly clear. Seas 1 ft or less.

      SW 6kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 7 to 10 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:SSW wind 13 to 16 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 16kt
      < 1ft

    • Thursday

      Thursday:SW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 24 kt. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      SW 16kt
      < 1ft

    • Thursday Night

      Thursday Night:NE wind 15 to 18 kt, with gusts as high as 24 kt. Showers, mainly before 8pm. Seas 1 ft or less.

      NE 18kt
      < 1ft

    • Friday

      Friday:E wind 9 to 13 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

      E 13kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

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

      ⇑E 10kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 6 to 8 kt. A slight chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      E 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:30 pm EDT Mar 10, 2026
Forecast Valid: 7pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026

View Nearby Observations

Detailed Forecast


Tonight
SW wind around 6 kt. Mostly clear. Seas 1 ft or less.
Wednesday
SSW wind 7 to 10 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
SSW wind 13 to 16 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
SW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 24 kt. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
NE wind 15 to 18 kt, with gusts as high as 24 kt. Showers, mainly before 8pm. Seas 1 ft or less.
Friday
E wind 9 to 13 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.
Saturday Night
E wind 6 to 8 kt. A slight chance of showers and thunderstorms after 2am. 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 62 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: 2:30 pm EDT Mar 10, 2026
Forecast Valid: 7pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
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