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Charleston, SC Local Forecast Office

4NM N Charleston Harbor MR

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. Widespread dense fog, mainly after 1am.  Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SSW 5 to 9 kt in the morning. Widespread fog, mainly before 9am.  Seas 1 ft or less.

      ⇑SSW 9kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind around 7 kt. A slight chance of showers.   Seas 1 ft or less.

      SSW 7kt
      < 1ft

    • Sunday

      Sunday:WNW wind 6 to 11 kt. Cloudy, then gradually becoming mostly sunny. Seas 1 ft or less.

      WNW 11kt
      < 1ft

    • Sunday Night

      Sunday Night:N wind 6 to 8 kt. Mostly clear. Seas 1 ft or less.

      N 8kt
      < 1ft

    • Monday

      Monday:N wind around 6 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      N 6kt⇓
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday Night

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

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 8:27 pm EST Jan 9, 2026
Forecast Valid: 10pm EST Jan 9, 2026-6pm EST Jan 16, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Widespread dense fog, mainly after 1am. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SSW 5 to 9 kt in the morning. Widespread fog, mainly before 9am. Seas 1 ft or less.
Saturday Night
SSW wind around 7 kt. A slight chance of showers. Seas 1 ft or less.
Sunday
WNW wind 6 to 11 kt. Cloudy, then gradually becoming mostly sunny. Seas 1 ft or less.
Sunday Night
N wind 6 to 8 kt. Mostly clear. Seas 1 ft or less.
Monday
N wind around 6 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 57 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: 32.83°N 79.89°W
Last Update: 8:27 pm EST Jan 9, 2026
Forecast Valid: 10pm EST Jan 9, 2026-6pm EST Jan 16, 2026
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