Marine Weather Net

Charleston, SC Weather Forecast


Marine Forecast: Charleston Harbor


Charleston, South Carolina

 Lat: 32.78N, Lon: 79.94W

Current Conditions Updated: 456 PM EST THU DEC 11 2025

Mostly Clear
Temp: 51°F
  • Humidity:
  • 45%
  • Winds:
  • 7 MPH WNW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.99 in.
  • Dewpoint:
  • 31°F
  • Heat index:
  • 51°F

  • Sunrise:
  • 7:10 AM EST
  • Sunset:
  • 5:12 PM EST
  • Moonrise:
  • N/A EST
  • Moonset:
  • 12:23 PM EST

THIS AFTERNOON

SUNNY

Hi: 51°F
Lo: 31°F

FRIDAY

SUNNY

Hi: 60°F
Lo: 40°F

SATURDAY

SUNNY

Hi: 65°F
Lo: 49°F

SUNDAY

PARTLY SUNNY
Hi: 59°F
Lo: 20°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 1237 PM EST Thu Dec 11 2025

This Afternoon...Sunny. Highs in the lower 50s. Northwest winds 5 to 10 mph.
Tonight...Mostly clear. Lows in the lower 30s. Light and variable winds.
Friday...Sunny. Highs around 60. Southwest winds 5 to 10 mph.
Friday Night...Mostly clear. Lows around 40. Southwest winds around 5 mph.
Saturday...Sunny. Highs in the mid 60s. West winds around 5 mph.
Saturday Night...Partly cloudy with a 20 percent chance of showers. Lows in the upper 40s.
Sunday...Partly sunny with a 40 percent chance of showers. Highs in the upper 50s. Temperature falling into the lower 50s in the afternoon.
Sunday Night...Mostly clear. Much cooler with lows around 20. Wind chill values as low as 10 above after midnight.
Monday...Sunny. Much cooler with highs in the upper 30s. Wind chill values as low as 10 above in the morning.
Monday Night...Mostly clear. Lows in the lower 20s.
Tuesday...Sunny. Highs in the lower 50s.
Tuesday Night...Mostly clear. Lows in the lower 30s.
Wednesday...Mostly sunny. Highs in the lower 60s.
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