Summerville (SC) Climate by Month
The temperature in Summerville can vary greatly throughout the year.
The temperatures shift from very warm
to mild.
It also experiences much rain/snowfall throughout the year.
Let’s explore the climate details in depth to provide you with a complete overview.
Average day and night temperature
Depending on the time of the year, temperatures range from very warm to moderate in Summerville. Average daytime temperatures reach a very warm 33°C in July. In January, the coolest month of the year, temperatures drop to a moderate 15°C. At night, expect cooler temperatures, averaging 2°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Summerville has a relatively rain/snowy climate with high precipitation levels, averaging 1317 mm of rain/snowfall annually. Summerville experiences moderate seasonal variation in rainfall, with monthly averages ranging from 153 mm in August, the wettest month, and 72 mm in January, the driest month.The mean monthly precipitation over the year, including rain, hail and snow
Sunshine over the year
Summerville can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.7 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is moderate throughout the year in Summerville.
Relative humidity over the year
The best time of year to visit Summerville in the United States of America
During the months of March, April, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in June, July and August.
July has an average maximum temperature of 33°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 15°C.
August tops the wettest month list with 153 mm of rainfall.
January is the driest month with 72 mm of precipitation.
May is the sunniest month with an average of 295 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.