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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Memorial Day

      Memorial Day:S wind around 13 kt. Mostly sunny. Seas 1 ft or less.

      S 13kt
      < 1ft

    • Tonight

      Tonight:S wind around 8 kt. A slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.

      S 8kt
      < 1ft

    • Tuesday

      Tuesday:S wind 9 to 12 kt. A chance of showers, mainly before noon. Seas 1 ft or less.

      S 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind around 9 kt. A slight chance of showers and thunderstorms between midnight and 1am. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 9 to 12 kt. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 8 to 10 kt. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Thursday

      Thursday:WSW wind 6 to 10 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      WSW 10kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas 1 ft or less.

      SW 7kt⇓
      < 1ft

    • Friday

      Friday:NNE wind 6 to 9 kt becoming E 9 to 12 kt in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 8am. Seas 1 ft or less.

      ⇑E 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:12 pm EDT May 25, 2026
Forecast Valid: 2pm EDT May 25, 2026-6pm EDT May 31, 2026

View Nearby Observations

Detailed Forecast


Memorial Day
S wind around 13 kt. Mostly sunny. Seas 1 ft or less.
Tonight
S wind around 8 kt. A slight chance of showers and thunderstorms after 3am. Seas 1 ft or less.
Tuesday
S wind 9 to 12 kt. A chance of showers, mainly before noon. Seas 1 ft or less.
Tuesday Night
SSW wind around 9 kt. A slight chance of showers and thunderstorms between midnight and 1am. Seas 1 ft or less.
Wednesday
SSW wind 9 to 12 kt. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.
Wednesday Night
SSW wind 8 to 10 kt. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas 1 ft or less.
Thursday
WSW wind 6 to 10 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Thursday Night
SW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas 1 ft or less.
Friday
NNE wind 6 to 9 kt becoming E 9 to 12 kt in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 8am. 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: 2:12 pm EDT May 25, 2026
Forecast Valid: 2pm EDT May 25, 2026-6pm EDT May 31, 2026
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