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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Thursday

      Thursday:NNE wind around 6 kt becoming ENE in the afternoon. Mostly cloudy. Seas 1 ft or less.

      NNE 6kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday

      Friday:ENE wind 8 to 13 kt. A slight chance of showers after 2pm. Seas 1 ft or less.

      ENE 13kt
      < 1ft

    • Friday Night

      Friday Night:ENE wind around 14 kt, with gusts as high as 20 kt. A slight chance of showers before 8pm, then a chance of showers after 2am. Seas 1 ft or less.

      ENE 14kt
      < 1ft

    • Saturday

      Saturday:E wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 30 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Seas 1 ft or less.

      ⇑E 22kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 16 to 21 kt becoming SE after midnight. Winds could gust as high as 30 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

      E 21kt
      < 1ft

    • Sunday

      Sunday:S wind 12 to 17 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

      S 17kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 10 to 12 kt becoming WSW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Seas 1 ft or less.

      SSW 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:30 pm EDT Oct 7, 2026
Forecast Valid: 11pm EDT Oct 7, 2026-6pm EDT Oct 14, 2026

View Nearby Observations

Detailed Forecast


Overnight
Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.
Thursday
NNE wind around 6 kt becoming ENE in the afternoon. Mostly cloudy. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.
Friday
ENE wind 8 to 13 kt. A slight chance of showers after 2pm. Seas 1 ft or less.
Friday Night
ENE wind around 14 kt, with gusts as high as 20 kt. A slight chance of showers before 8pm, then a chance of showers after 2am. Seas 1 ft or less.
Saturday
E wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 30 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Seas 1 ft or less.
Saturday Night
E wind 16 to 21 kt becoming SE after midnight. Winds could gust as high as 30 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Sunday
S wind 12 to 17 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Sunday Night
SSW wind 10 to 12 kt becoming WSW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 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 77 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: 8:30 pm EDT Oct 7, 2026
Forecast Valid: 11pm EDT Oct 7, 2026-6pm EDT Oct 14, 2026
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