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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers and thunderstorms after 3am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:N wind 5 to 9 kt. Showers and thunderstorms likely before 2pm, then a chance of showers. Seas 1 ft or less.

      N 9kt
      < 1ft

    • Monday Night

      Monday Night:NE wind 8 to 10 kt. Cloudy. Seas 1 ft or less.

      NE 10kt
      < 1ft

    • Tuesday

      Tuesday:NE wind 19 to 23 kt, with gusts as high as 30 kt. A slight chance of showers before 2pm. Seas 1 ft or less.

      NE 23kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NE wind 16 to 19 kt decreasing to 11 to 14 kt after midnight. Winds could gust as high as 27 kt. Mostly cloudy. Seas 1 ft or less.

      NE 19kt⇓
      < 1ft

    • Wednesday

      Wednesday:NNE wind around 14 kt, with gusts as high as 21 kt. Partly sunny. Seas 1 ft or less.

      NNE 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NE wind 6 to 8 kt. Mostly cloudy. Seas 1 ft or less.

      NE 8kt
      < 1ft

    • Thursday

      Thursday:NE wind 7 to 9 kt. Partly sunny. Seas 1 ft or less.

      NE 9kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:42 pm EDT Oct 4, 2026
Forecast Valid: 5pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers and thunderstorms after 3am. Seas 1 ft or less.
Monday
N wind 5 to 9 kt. Showers and thunderstorms likely before 2pm, then a chance of showers. Seas 1 ft or less.
Monday Night
NE wind 8 to 10 kt. Cloudy. Seas 1 ft or less.
Tuesday
NE wind 19 to 23 kt, with gusts as high as 30 kt. A slight chance of showers before 2pm. Seas 1 ft or less.
Tuesday Night
NE wind 16 to 19 kt decreasing to 11 to 14 kt after midnight. Winds could gust as high as 27 kt. Mostly cloudy. Seas 1 ft or less.
Wednesday
NNE wind around 14 kt, with gusts as high as 21 kt. Partly sunny. Seas 1 ft or less.
Wednesday Night
NE wind 6 to 8 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
NE wind 7 to 9 kt. Partly sunny. 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 80 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: 2:42 pm EDT Oct 4, 2026
Forecast Valid: 5pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
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