Best year time to visit Charleston

General weather information about Charleston

Average annual temperature is 13.5 °C

Absolute maximum temperature: 36.7 °C

Absolute minimum temperature: -12.3 °C

Number of sunny days: 191

Number of rainy days: 167

Number of snow days: 7

Average annual precipitation: 853 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) 18.4 19 21 27.3 31.3 32.8 35.5 36.7 31.9 29.1 24.7 16.1
Average daytime temperature (°C) 6.5 9.9 11.2 18.9 24.6 28.8 30 28.6 26.2 19.3 12.9 9
Average temperature (°C) 2.6 3.9 5.5 12 18.5 22.6 24.6 23.5 20.7 14.3 7.6 4.6
Average night temperature (°C) -0.6 -0.3 1.2 6.9 12.5 17 19.8 19.1 15.8 10.4 3 1.8
Absolute minimum temperature (°C) -12.2 -12.3 -7.9 -1.2 3.7 10.9 16.3 13 11.4 -2.7 -8.4 -7.3

Charleston monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.2 11.3 12.6 13.8 14.8 15 14.9 14.2 13.1 11.8 10.5 9.6
Daylight mean duration (h) 9.8 10.7 12 13.3 14.4 14.9 14.6 13.7 12.5 11.2 10 9.4
Daylight minimum duration (h) 9.4 10.2 11.3 12.7 13.9 14.8 14.3 13.1 11.8 10.6 9.6 9.4
Sunshine mean duration (h) 5 8.1 6.9 9.5 11.1 12.2 12.4 10.5 10.2 7.6 8.2 6
Precipitation (mm) 91 69 129 71 44 37 119 117 33 59 18 66
Sunny days 14 17 13 17 19 18 11 12 18 17 22 13
Rainy days 12 11 16 13 12 12 20 19 12 14 8 18
Snow days 5 2

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 — 12.2(h)
  • July — 12.4(h)

The largest precipitation sum in Charleston is at

  • January — 91(mm)
  • March — 129(mm)
  • July — 119(mm)
  • August — 117(mm)

Weather forecast in the closest to Charleston admin centers