2025 Compare Climate & Weather:
Bluffton, SC vs St. Simons, GA

Highlights

On average, there are 221 sunny days per year in St. Simons. Bluffton averages 217 sunny days per year. The US average is 205 sunny days.

St. Simons, Georgia gets 48.2 inches of rain, on average, per year. Bluffton, South Carolina gets 48.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

St. Simons averages 0.1 inches of snow per year. Bluffton averages 0.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

St. Simons, Georgia
Summer High: the July high is around 91 degrees
Winter Low: the January low is 42.1
Rain: averages 48.2 inches of rain a year
Snow: averages 0.1 inches of snow a year

Bluffton, South Carolina
Summer High: the July high is around 90.9 degrees
Winter Low: the January low is 39.2
Rain: averages 48.1 inches of rain a year
Snow: averages 0.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for St. Simons is 7.1 (10=best), which means it is one of the least comfortable places in Georgia.

The annual BestPlaces Comfort Index for Bluffton is 7.1 (10=best), which means it is one of the least comfortable places in South Carolina.

Today's Weather - Bluffton, SC

69°F

Today's Weather - St. Simons, GA

71°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Bluffton / St. Simons

July is the hottest month for Bluffton with an average high temperature of 90.9°, which ranks it as about average compared to other places in South Carolina. In Bluffton, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bluffton are October, April and May.

July is the hottest month for St. Simons with an average high temperature of 91.0°, which ranks it as about average compared to other places in Georgia. In St. Simons, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Simons are October, April and May.

January has the coldest nighttime temperatures for Bluffton with an average of 39.2°. This is one of the warmest places in South Carolina.

January has the coldest nighttime temperatures for St. Simons with an average of 42.1°. This is one of the warmest places in Georgia.

In Bluffton, there are 52.0 days annually when the high temperature is over 90°, which is about average compared to other places in South Carolina.

In St. Simons, there are 51.3 days annually when the high temperature is over 90°, which is about average compared to other places in Georgia.

In Bluffton, there are 17.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Carolina.

In St. Simons, there are 10.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Georgia.

In Bluffton, 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.

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

August is the wettest month in Bluffton with 7.1 inches of rain, and the driest month is May with 2.3 inches. The wettest season is Autumn with 37% of yearly precipitation and 18% occurs in Summer, which is the driest season. The annual rainfall of 48.1 inches in Bluffton means that it is wetter than most places in South Carolina.


August is the wettest month in St. Simons with 6.8 inches of rain, and the driest month is November with 2.2 inches. The wettest season is Autumn with 35% of yearly precipitation and 19% occurs in Summer, which is the driest season. The annual rainfall of 48.2 inches in St. Simons means that it is drier than most places in Georgia.

August is the rainiest month in Bluffton with 12.3 days of rain, and May is the driest month with only 6.4 rainy days. There are 103.6 rainy days annually in Bluffton, which is about average compared to other places in South Carolina. The rainiest season is Autumn when it rains 33% of the time and the driest is Summer with only a 20% chance of a rainy day.

August is the rainiest month in St. Simons with 12.2 days of rain, and April is the driest month with only 5.8 rainy days. There are 101.7 rainy days annually in St. Simons, which is about average compared to other places in Georgia. The rainiest season is Autumn when it rains 33% of the time and the driest is Summer with only a 19% chance of a rainy day.

An annual snowfall of 0.1 inches in Bluffton means that it is one of the least snowy places in South Carolina.

An annual snowfall of 0.1 inches in St. Simons means that it is less snowy than most places in Georgia.

December is the snowiest month in Bluffton with 0.1 inches of snow, and no months of the year have significant snowfall.

December is the snowiest month in St. Simons with 0.1 inches of snow, and no months of the year have significant snowfall.