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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑ESE 6kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind around 6 kt. Increasing clouds. Seas 1 ft or less.

      E 6kt
      < 1ft

    • Sunday

      Sunday:ESE wind 7 to 11 kt. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.

      ESE 11kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 6 to 9 kt becoming S 9 to 12 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

      ⇑S 12kt
      < 1ft

    • Monday

      Monday:SSW wind 16 to 20 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      SSW 20kt
      < 1ft

    • Monday Night

      Monday Night:W wind around 16 kt becoming WNW after midnight. Winds could gust as high as 24 kt. A slight chance of showers before 2am. Seas 1 ft or less.

      W 16kt
      < 1ft

    • Tuesday

      Tuesday:WNW wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.

      WNW 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NW wind around 7 kt becoming N after midnight. Mostly cloudy. Seas 1 ft or less.

      N 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:15 pm EDT Mar 13, 2026
Forecast Valid: 6pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
E wind around 6 kt. Increasing clouds. Seas 1 ft or less.
Sunday
ESE wind 7 to 11 kt. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.
Sunday Night
SE wind 6 to 9 kt becoming S 9 to 12 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Monday
SSW wind 16 to 20 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Monday Night
W wind around 16 kt becoming WNW after midnight. Winds could gust as high as 24 kt. A slight chance of showers before 2am. Seas 1 ft or less.
Tuesday
WNW wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
NW wind around 7 kt becoming N after midnight. Mostly cloudy. 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 61 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: 6:15 pm EDT Mar 13, 2026
Forecast Valid: 6pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
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