2025 Compare Climate & Weather:
Hilton Head Island, SC vs Sanibel, FL

Highlights

On average, there are 262 sunny days per year in Sanibel. Hilton Head Island averages 215 sunny days per year. The US average is 205 sunny days.

Sanibel, Florida gets 53.8 inches of rain, on average, per year. Hilton Head Island, South Carolina gets 48.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sanibel averages 0 inches of snow per year. Hilton Head Island averages 0.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sanibel, Florida
Summer High: the July high is around 91.7 degrees
Winter Low: the January low is 53.4
Rain: averages 53.8 inches of rain a year
Snow: averages 0 inches of snow a year

Hilton Head Island, South Carolina
Summer High: the July high is around 90.8 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 Sanibel is 6.4 (10=best), which means it is less comfortable than most places in Florida.

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

Today's Weather - Hilton Head Island, SC

75°F

Today's Weather - Sanibel, FL

80°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Hilton Head Island / Sanibel

July is the hottest month for Hilton Head Island with an average high temperature of 90.8°, which ranks it as cooler than most places in South Carolina. In Hilton Head Island, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hilton Head Island are October, April and May.

July is the hottest month for Sanibel with an average high temperature of 91.7°, which ranks it as warmer than most places in Florida. In Sanibel, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sanibel are February, December and March.

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

January has the coldest nighttime temperatures for Sanibel with an average of 53.4°. This is warmer than most places in Florida.

In Hilton Head Island, there are 51.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Carolina.

In Sanibel, there are 103.5 days annually when the high temperature is over 90°, which is hotter than most places in Florida.

In Hilton Head Island, 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 Sanibel, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Florida.

In Hilton Head Island, 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 Sanibel, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Florida.

August is the wettest month in Hilton Head Island with 7.1 inches of rain, and the driest month is May with 2.2 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 Hilton Head Island means that it is wetter than most places in South Carolina.


June is the wettest month in Sanibel with 9.4 inches of rain, and the driest month is December with 1.6 inches. The wettest season is Autumn with 50% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 53.8 inches in Sanibel means that it is about average compared to other places in Florida.

August is the rainiest month in Hilton Head Island with 12.3 days of rain, and May is the driest month with only 6.4 rainy days. There are 103.4 rainy days annually in Hilton Head Island, which is about average compared to other places in South Carolina. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 20% chance of a rainy day.

August is the rainiest month in Sanibel with 17.3 days of rain, and April is the driest month with only 4.7 rainy days. There are 113.0 rainy days annually in Sanibel, which is about average compared to other places in Florida. The rainiest season is Autumn when it rains 44% of the time and the driest is Spring with only a 15% chance of a rainy day.

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

There is rarely any recorded snowfall in Sanibel, ranking it as one of the least snowy places in Florida.

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

Any measurable snowfall is a rare occurance in Sanibel.