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Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SSW wind 7 to 10 kt. Mostly sunny. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Tonight

      Tonight:SSW wind around 6 kt. Patchy fog after 3am. Seas 1 ft or less.

      SSW 6kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of showers after 2pm. Patchy fog before 8am. Seas 1 ft or less.

      ⇑SSW 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind around 6 kt. Partly cloudy. Seas 1 ft or less.

      SW 6kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑SSW 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 11 to 13 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 13kt
      < 1ft

    • Thursday

      Thursday:SW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 23 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      WSW 16kt
      < 1ft

    • Thursday Night

      Thursday Night:NE wind 13 to 16 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Seas 1 ft or less.

      NE 16kt
      < 1ft

    • Friday

      Friday:NE wind 8 to 11 kt. A slight chance of showers. Seas 1 ft or less.

      NE 11kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 10:08 am EDT Mar 9, 2026
Forecast Valid: 1pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SSW wind 7 to 10 kt. Mostly sunny. Seas 1 ft or less.
Tonight
SSW wind around 6 kt. Patchy fog after 3am. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of showers after 2pm. Patchy fog before 8am. Seas 1 ft or less.
Tuesday Night
SW wind around 6 kt. Partly cloudy. Seas 1 ft or less.
Wednesday
SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
SSW wind 11 to 13 kt. Mostly cloudy. Seas 1 ft or less.
Thursday
SW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 23 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
NE wind 13 to 16 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Seas 1 ft or less.
Friday
NE wind 8 to 11 kt. A slight chance of showers. 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 60 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: 10:08 am EDT Mar 9, 2026
Forecast Valid: 1pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026
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