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Hazardous Weather Conditions

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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:S wind around 9 kt becoming SW after midnight. A chance of showers and thunderstorms, mainly after 1am. Seas 1 ft or less.

      S 9kt
      < 1ft

    • Sunday

      Sunday:SSW wind 8 to 11 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Showers and thunderstorms likely, mainly before 3pm. Seas 1 ft or less.

      ⇑SSW 17kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:SSW wind 12 to 16 kt, with gusts as high as 22 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Seas 1 ft or less.

      SSW 16kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:SSW wind 13 to 17 kt, with gusts as high as 24 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      SSW 17kt
      < 1ft

    • Monday Night

      Monday Night:SSW wind 9 to 14 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      SSW 14kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind 6 to 9 kt increasing to 9 to 12 kt in the afternoon. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      ⇑SSW 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind 7 to 10 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Wednesday

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

      ⇑S 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 5 to 8 kt. A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      S 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:33 pm EDT Aug 1, 2026
Forecast Valid: 8pm EDT Aug 1, 2026-6pm EDT Aug 8, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH

Tonight
S wind around 9 kt becoming SW after midnight. A chance of showers and thunderstorms, mainly after 1am. Seas 1 ft or less.
Sunday
SSW wind 8 to 11 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Showers and thunderstorms likely, mainly before 3pm. Seas 1 ft or less.
Sunday Night
SSW wind 12 to 16 kt, with gusts as high as 22 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Seas 1 ft or less.
Monday
SSW wind 13 to 17 kt, with gusts as high as 24 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Monday Night
SSW wind 9 to 14 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Tuesday
SSW wind 6 to 9 kt increasing to 9 to 12 kt in the afternoon. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Tuesday Night
S wind 7 to 10 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly before 2pm. Seas 1 ft or less.
Wednesday Night
S wind 5 to 8 kt. A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

*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 pm EDT Aug 1, 2026
Forecast Valid: 8pm EDT Aug 1, 2026-6pm EDT Aug 8, 2026
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