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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SE wind around 13 kt. Sunny. Seas 1 ft or less.

      SE 13kt
      < 1ft

    • Tonight

      Tonight:SSE wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

      SSE 8kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      SSE 7kt⇓
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A slight chance of showers before 2pm. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft

    • Friday Night

      Friday Night:S wind 5 to 7 kt. A slight chance of showers after 2am. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly between 8am and 2pm. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind around 6 kt. A slight chance of showers before 8pm. Seas 1 ft or less.

      S 6kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly before 2pm. Seas 1 ft or less.

      ⇑SSE 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:33 am EDT May 20, 2026
Forecast Valid: 2pm EDT May 20, 2026-6pm EDT May 26, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SE wind around 13 kt. Sunny. Seas 1 ft or less.
Tonight
SSE wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Thursday Night
SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A slight chance of showers before 2pm. Seas 1 ft or less.
Friday Night
S wind 5 to 7 kt. A slight chance of showers after 2am. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly between 8am and 2pm. Seas 1 ft or less.
Saturday Night
S wind around 6 kt. A slight chance of showers before 8pm. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers and thunderstorms, mainly before 2pm. Seas 1 ft or less.

Winds and waves higher in and near tstms.

*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: 8:33 am EDT May 20, 2026
Forecast Valid: 2pm EDT May 20, 2026-6pm EDT May 26, 2026
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