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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:ESE wind around 8 kt. A slight chance of showers and thunderstorms before 5pm. Seas 1 ft or less.

      ESE 8kt
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming ESE 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑ESE 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming ESE 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑ESE 7kt
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. A slight chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

      ⇑SSE 8kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      S 6kt⇓
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A slight chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑S 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT Aug 31, 2026
Forecast Valid: 4pm EDT Aug 31, 2026-6pm EDT Sep 7, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
ESE wind around 8 kt. A slight chance of showers and thunderstorms before 5pm. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming ESE 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming ESE 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. A slight chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.
Thursday Night
S wind around 6 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 S 5 to 8 kt in the afternoon. A slight chance of showers and thunderstorms. 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 84 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: 2:35 pm EDT Aug 31, 2026
Forecast Valid: 4pm EDT Aug 31, 2026-6pm EDT Sep 7, 2026
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