2025 Compare Climate & Weather:
Urban Honolulu, HI vs Hilton Head Island, SC

Highlights

On average, there are 215 sunny days per year in Hilton Head Island. Urban Honolulu averages 271 sunny days per year. The US average is 205 sunny days.

Hilton Head Island, South Carolina gets 48.1 inches of rain, on average, per year. Urban Honolulu, Hawaii gets 48.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

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

Weather Highlights

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

Urban Honolulu, Hawaii
Summer High: the July high is around 84.9 degrees
Winter Low: the January low is 65.3
Rain: averages 48.8 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

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.

The annual BestPlaces Comfort Index for Honolulu is 8.3 (10=best), which means it is less comfortable than most places in Hawaii.

Today's Weather - Urban Honolulu, HI

72°F

Today's Weather - Hilton Head Island, SC

68°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Urban Honolulu / Hilton Head Island

September is the hottest month for Honolulu with an average high temperature of 85.8°, which ranks it as warmer than most places in Hawaii. In Honolulu, there are 10 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Honolulu are January, February and March.

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.

January has the coldest nighttime temperatures for Honolulu with an average of 65.3°. This is warmer than most places in Hawaii.

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.

In Honolulu, there are 7.8 days annually when the high temperature is over 90°, which is hotter than most places in Hawaii.

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 Honolulu, there are 0.0 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Hawaii.

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

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.

December is the wettest month in Honolulu with 6.3 inches of rain, and the driest month is May with 2.7 inches. The wettest season is Spring with 31% of yearly precipitation and 19% occurs in Autumn, which is the driest season. The annual rainfall of 48.8 inches in Honolulu means that it is about average compared to other places in Hawaii.


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.

July is the rainiest month in Honolulu with 18.7 days of rain, and February is the driest month with only 12.6 rainy days. There are 194.9 rainy days annually in Honolulu, which is rainier than most places in Hawaii. The rainiest season is Autumn when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

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.

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

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

Any measurable snowfall is a rare occurance in Honolulu.

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