Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Charleston, South Carolina, United States Average Monthly Weather
Weather score57Good annual avg
Best months: May, September, June
Across the year, average daytime temperatures are around 23°C, sunshine averages 7.6h per day, and rainfall totals about 1264mm.
Annual weather
Annual averages
Temp
23°C
Rain
1264mm
Annual total
Sun
7.6h
Weather score
57
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 162mm, so some wet days are possible.
Bright
Sunshine averages 9.2h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Charleston, South Carolina, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July31°C average high
July is one of Charleston's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July162mm average rain
July is wetter than Charleston's yearly average, so flexible plans matter more.
Driest monthsJanuary to February, April to May, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July9.2 hours average sun
July is one of Charleston's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
July63 weather score
July sits close to Charleston's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsApril to June and September to October
These months have the strongest weather score in the monthly averages.
Hotels in Charleston, South Carolina, United States
Marriott
View all
Charleston MarriottCharleston, South Carolina, USA
Charleston Marriott Town CenterCharleston, West Virginia, USA
The Lindy Renaissance Charleston HotelCharleston, South Carolina, USA
Grand Bohemian Charleston, Autograph CollectionCharleston, South Carolina, USA
Live Oak, Charleston Historic District, a Tribute Portfolio HotelCharleston, South Carolina, USA
Courtyard Charleston Downtown/Civic CenterCharleston, West Virginia, USA