Charleston climate

Typical historical weather for Charleston, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Charleston.

Annual average

13°C

across all months

Warmest month

29.5°C

Jul average high

Coolest month

-5°C

Jan average low

Annual rainfall

1146mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

38.1°C

5 July 2022

Coldest day

-24.6°C

30 January 2019

Wettest day

101.3mm

8 September 2018

Windiest day

9.6m/s

23 December 2022