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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SW wind around 13 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 ft or less.

      SW 13kt
      < 1ft

    • Sunday

      Sunday:WSW wind 10 to 13 kt becoming SSW 13 to 16 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSW 16kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 10 to 13 kt. Mostly clear. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Monday

      Monday:SW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SW 14kt
      < 1ft

    • Monday Night

      Monday Night:S wind around 12 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

      S 12kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind 10 to 13 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 24 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑SSW 17kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind around 15 kt, with gusts as high as 23 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      SSW 15kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 14 to 18 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      SSW 18kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 13 to 15 kt, with gusts as high as 22 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

      SSW 15kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:30 pm EDT Jul 18, 2026
Forecast Valid: 8pm EDT Jul 18, 2026-6pm EDT Jul 25, 2026

View Nearby Observations

Detailed Forecast


Tonight
SW wind around 13 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 ft or less.
Sunday
WSW wind 10 to 13 kt becoming SSW 13 to 16 kt in the afternoon. Sunny. Seas 1 ft or less.
Sunday Night
SSW wind 10 to 13 kt. Mostly clear. Seas 1 ft or less.
Monday
SW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
S wind around 12 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.
Tuesday
SSW wind 10 to 13 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 24 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Tuesday Night
SSW wind around 15 kt, with gusts as high as 23 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Wednesday
SSW wind 14 to 18 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Wednesday Night
SSW wind 13 to 15 kt, with gusts as high as 22 kt. Showers likely and possibly a thunderstorm. 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 88 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: 2:30 pm EDT Jul 18, 2026
Forecast Valid: 8pm EDT Jul 18, 2026-6pm EDT Jul 25, 2026
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