Best year time to visit Charleston

General weather information about Charleston

Average annual temperature is 14.4 °C

Absolute maximum temperature: 34.4 °C

Absolute minimum temperature: -7.8 °C

Number of sunny days: 168

Number of rainy days: 193

Number of snow days: 4

Average annual precipitation: 1145 mm

Look at detailed online map of Charleston

* Weather data for Charleston United States is based on climate observations for 2023 year

Charleston air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 21.5 24.5 24.8 30.2 28.1 31.9 34.4 33.5 32.4 28.6 25.6 19.9
Average daytime temperature (°C) 11.4 14.5 14.4 21.2 23.2 27 30.4 28.7 25.5 20.8 14.8 11.8
Average temperature (°C) 6.1 7.9 8.1 14.1 17.1 21 24.6 23.1 20.1 15.3 8.4 6.6
Average night temperature (°C) 2.6 3.2 3.1 8.2 11.7 15.7 19.7 18.8 15.6 10.9 3.7 3
Absolute minimum temperature (°C) -6.2 -7.8 -7.3 0.9 4.4 10.1 15.9 13.3 11.3 2.6 -6 -4.8

Charleston monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.3 11.3 12.6 13.8 14.6 14.8 14.8 14.1 13 11.8 10.6 9.7
Daylight mean duration (h) 9.8 10.8 12 13.2 14.3 14.8 14.5 13.6 12.4 11.2 10.1 9.6
Daylight minimum duration (h) 9.6 10.3 11.3 12.6 13.8 14.7 14.2 13.1 11.9 10.6 9.7 9.5
Sunshine mean duration (h) 5.4 6.8 7.7 9.9 9.7 10.9 11.8 10.1 9.6 7.9 7.7 5.6
Precipitation (mm) 110 101 100 52 108 50 130 226 77 52 52 86
Sunny days 10 14 15 20 16 12 6 7 16 17 20 15
Rainy days 20 13 15 10 15 18 25 24 14 14 10 15
Snow days 1 1 1 1

Charleston - weather forecast by months

January February March April May June July August September October November December

Best time to visit Charleston:

The best time to visit Charleston during the most sunny months:

  • June — 10.9(h)
  • July — 11.8(h)

The largest precipitation sum in Charleston is at

  • July — 130(mm)
  • August — 226(mm)

Weather forecast in the closest to Charleston admin centers