Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
May verdict
Charleston, South Carolina, United States in May
Weather score80Very good
Very good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 9.4h per day, so bright days are a strong part of the month. Rainfall averages 95mm, so some wet days are possible.
May weather
Monthly averages
Temp
27°C
Rain
95mm
Sun
9.4h
Weather score
80
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 95mm, so some wet days are possible.
Bright
Sunshine averages 9.4h 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
May27°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May95mm average rain
May sits on the drier side of Charleston's year, which helps with sightseeing and transfers.
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
May9.4 hours average sun
May 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
May80 weather score
May is one of Charleston's best weather-score months, combining the strongest overall balance in the yearly averages.
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