Marine Weather Net

Charleston, SC Weather Forecast


Marine Forecast: Charleston Harbor


Charleston, South Carolina

 Lat: 32.78N, Lon: 79.94W

Current Conditions Updated: 756 PM EDT MON SEP 28 2026

Partly Cloudy
Temp: 73°F
  • Humidity:
  • 75%
  • Winds:
  • 3 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.91 in.
  • Dewpoint:
  • 65°F
  • Heat index:
  • 74°F

  • Sunrise:
  • 7:09 AM EDT
  • Sunset:
  • 7:08 PM EDT
  • Moonrise:
  • 8:08 PM EDT
  • Moonset:
  • 9:12 AM EDT

TONIGHT

MOSTLY CLEAR
Lo: 60°F

TUESDAY

SUNNY

Hi: 89°F
Lo: 65°F

WEDNESDAY

SUNNY

Hi: 89°F
Lo: 65°F

THURSDAY

SUNNY

Hi: 89°F
Lo: 69°F
Weather Forecast In Detail:
Forecast Issued: 537 PM EDT Mon Sep 28 2026

Tonight...Mostly clear. Lows around 60. Light and variable winds.
Tuesday...Sunny. Highs in the upper 80s. Light and variable winds, becoming east around 5 mph in the afternoon.
Tuesday Night...Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph in the evening, becoming light and variable.
Wednesday...Sunny. Highs in the upper 80s. East winds around 5 mph.
Wednesday Night...Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph in the evening, becoming light and variable.
Thursday...Sunny. Highs in the upper 80s.
Thursday Night...Mostly clear. Lows in the upper 60s.
Friday...Mostly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 30 percent.
Friday Night...Mostly cloudy with a 20 percent chance of showers. Lows in the lower 70s.
Saturday...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.
Saturday Night...Mostly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Chance of rain 20 percent.
Sunday...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.
Sunday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 60s.
Monday...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Chance of rain 50 percent.
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