2025 Compare Climate & Weather:
Williamsburg, VA vs Charleston, SC

Highlights

On average, there are 209 sunny days per year in Charleston. Williamsburg averages 209 sunny days per year. The US average is 205 sunny days.

Charleston, South Carolina gets 48.3 inches of rain, on average, per year. Williamsburg, Virginia gets 47.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Charleston averages 0.4 inches of snow per year. Williamsburg averages 6.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Charleston, South Carolina
Summer High: the July high is around 89.9 degrees
Winter Low: the January low is 39.3
Rain: averages 48.3 inches of rain a year
Snow: averages 0.4 inches of snow a year

Williamsburg, Virginia
Summer High: the July high is around 87.8 degrees
Winter Low: the January low is 30
Rain: averages 47.2 inches of rain a year
Snow: averages 6.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Charleston is 7.2 (10=best), which means it is less comfortable than most places in South Carolina.

The annual BestPlaces Comfort Index for Williamsburg is 7.4 (10=best), which means it is more comfortable than most places in Virginia.

Today's Weather - Williamsburg, VA

61°F

Today's Weather - Charleston, SC

75°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Williamsburg / Charleston

July is the hottest month for Williamsburg with an average high temperature of 87.8°, which ranks it as warmer than most places in Virginia. In Williamsburg, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Williamsburg are May, September and June.

July is the hottest month for Charleston with an average high temperature of 89.9°, which ranks it as cooler than most places in South Carolina. In Charleston, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Charleston are October, May and April.

January has the coldest nighttime temperatures for Williamsburg with an average of 30.0°. This is one of the warmest places in Virginia.

January has the coldest nighttime temperatures for Charleston with an average of 39.3°. This is one of the warmest places in South Carolina.

In Williamsburg, there are 26.7 days annually when the high temperature is over 90°, which is hotter than most places in Virginia.

In Charleston, there are 41.1 days annually when the high temperature is over 90°, which is cooler than most places in South Carolina.

In Williamsburg, there are 64.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Virginia.

In Charleston, there are 17.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Carolina.

In Williamsburg, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Virginia.

In Charleston, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in South Carolina.

August is the wettest month in Williamsburg with 5.1 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 47.2 inches in Williamsburg means that it is one of the wettest places in Virginia.


August is the wettest month in Charleston with 6.7 inches of rain, and the driest month is May with 2.5 inches. The wettest season is Autumn with 36% of yearly precipitation and 19% occurs in Summer, which is the driest season. The annual rainfall of 48.3 inches in Charleston means that it is wetter than most places in South Carolina.

July is the rainiest month in Williamsburg with 11.3 days of rain, and October is the driest month with only 7.5 rainy days. There are 116.2 rainy days annually in Williamsburg, which is about average compared to other places in Virginia. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

August is the rainiest month in Charleston with 11.7 days of rain, and May is the driest month with only 6.8 rainy days. There are 105.9 rainy days annually in Charleston, which is rainier than most places in South Carolina. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 21% chance of a rainy day.

An annual snowfall of 6.5 inches in Williamsburg means that it is less snowy than most places in Virginia.

An annual snowfall of 0.4 inches in Charleston means that it is less snowy than most places in South Carolina.

January is the snowiest month in Williamsburg with 2.6 inches of snow, and 3 months of the year have significant snowfall.

December is the snowiest month in Charleston with 0.2 inches of snow, and no months of the year have significant snowfall.