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Hazardous Weather Conditions

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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Wednesday

      Wednesday:SSW wind 10 to 15 kt, with gusts as high as 23 kt. A slight chance of showers and thunderstorms between 9am and 11am. Seas 1 ft or less.

      SSW 15kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:S wind around 13 kt, with gusts as high as 22 kt. Partly cloudy. Seas 1 ft or less.

      S 13kt
      < 1ft

    • Thursday

      Thursday:SW wind 7 to 10 kt becoming S 10 to 13 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 13kt
      < 1ft

    • Thursday Night

      Thursday Night:SSW wind 8 to 10 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Friday

      Friday:S wind 7 to 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Seas 1 ft or less.

      S 10kt
      < 1ft

    • Friday Night

      Friday Night:S wind 5 to 7 kt. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Saturday

      Saturday:SW wind 5 to 9 kt. Showers and thunderstorms likely, mainly after 2pm. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind around 6 kt. Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      WSW 6kt
      < 1ft

    • Sunday

      Sunday:WNW wind 6 to 8 kt becoming SW in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

      NW 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Jul 22, 2026
Forecast Valid: 3am EDT Jul 22, 2026-6pm EDT Jul 28, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...

Wednesday
SSW wind 10 to 15 kt, with gusts as high as 23 kt. A slight chance of showers and thunderstorms between 9am and 11am. Seas 1 ft or less.
Wednesday Night
S wind around 13 kt, with gusts as high as 22 kt. Partly cloudy. Seas 1 ft or less.
Thursday
SW wind 7 to 10 kt becoming S 10 to 13 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Thursday Night
SSW wind 8 to 10 kt. Mostly cloudy. Seas 1 ft or less.
Friday
S wind 7 to 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Seas 1 ft or less.
Friday Night
S wind 5 to 7 kt. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.
Saturday
SW wind 5 to 9 kt. Showers and thunderstorms likely, mainly after 2pm. Seas 1 ft or less.
Saturday Night
WSW wind around 6 kt. Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Sunday
WNW wind 6 to 8 kt becoming SW in the afternoon. A chance of showers and thunderstorms. 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: 2:40 am EDT Jul 22, 2026
Forecast Valid: 3am EDT Jul 22, 2026-6pm EDT Jul 28, 2026
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