Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Charleston, South Carolina, United States in September
Weather score72Very good
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 7.2h per day, enough for a balanced month. Rainfall averages 121mm, so some wet days are possible.
September weather
Monthly averages
Temp
29°C
Rain
121mm
Sun
7.2h
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 121mm, so some wet days are possible.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Map
Weather map
Compare Charleston, South Carolina, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September 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
September121mm average rain
September sits near Charleston's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
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
September7.2 hours average sun
September sits close to Charleston's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
September72 weather score
September scores above Charleston's yearly average, so the overall weather mix is stronger than most months.
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
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Courtyard Charleston Downtown/Civic CenterCharleston, West Virginia, USA