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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, mainly between 8am and 10am. Seas 1 ft or less.

      ⇑S 7kt
      < 1ft

    • Tonight

      Tonight:SW wind around 7 kt. Partly cloudy. Seas 1 ft or less.

      SW 7kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Patchy fog between 7am and 8am. Seas 1 ft or less.

      ⇑SSW 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 11 to 13 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Thursday

      Thursday:SSW wind around 13 kt becoming W in the afternoon. Winds could gust as high as 20 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.

      SSW 13kt
      < 1ft

    • Thursday Night

      Thursday Night:NNE wind 15 to 17 kt. Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

      NNE 17kt
      < 1ft

    • Friday

      Friday:E wind 8 to 13 kt. 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 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑E 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 3:17 am EDT Mar 10, 2026
Forecast Valid: 5am EDT Mar 10, 2026-6pm EDT Mar 16, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, mainly between 8am and 10am. Seas 1 ft or less.
Tonight
SW wind around 7 kt. Partly cloudy. Seas 1 ft or less.
Wednesday
SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Patchy fog between 7am and 8am. Seas 1 ft or less.
Wednesday Night
SSW wind 11 to 13 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
SSW wind around 13 kt becoming W in the afternoon. Winds could gust as high as 20 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
NNE wind 15 to 17 kt. Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.
Friday
E wind 8 to 13 kt. 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 7 kt in the afternoon. Mostly 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 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: 3:17 am EDT Mar 10, 2026
Forecast Valid: 5am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
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