2025 Compare Climate & Weather:
Treasure Island, FL vs Key West, FL

Highlights

On average, there are 260 sunny days per year in Key West. Treasure Island averages 242 sunny days per year. The US average is 205 sunny days.

Key West, Florida gets 43.8 inches of rain, on average, per year. Treasure Island, Florida gets 50.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Key West averages 0 inches of snow per year. Treasure Island averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Key West, Florida
Summer High: the July high is around 89.4 degrees
Winter Low: the January low is 63.6
Rain: averages 43.8 inches of rain a year
Snow: averages 0 inches of snow a year

Treasure Island, Florida
Summer High: the July high is around 90.5 degrees
Winter Low: the January low is 52.6
Rain: averages 50.8 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Key West is 6.1 (10=best), which means it is one of the least comfortable places in Florida.

The annual BestPlaces Comfort Index for Treasure Island is 6.6 (10=best), which means it is less comfortable than most places in Florida.

Today's Weather - Treasure Island, FL

82°F

Today's Weather - Key West, FL

83°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Treasure Island / Key West

August is the hottest month for Treasure Island with an average high temperature of 90.5°, which ranks it as cooler than most places in Florida. In Treasure Island, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Treasure Island are November, March and April.

August is the hottest month for Key West with an average high temperature of 89.6°, which ranks it as one of the coolest places in Florida. In Key West, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Key West are March, February and December.

January has the coldest nighttime temperatures for Treasure Island with an average of 52.6°. This is warmer than most places in Florida.

January has the coldest nighttime temperatures for Key West with an average of 63.6°. This is one of the warmest places in Florida.

In Treasure Island, there are 73.2 days annually when the high temperature is over 90°, which is about average compared to other places in Florida.

In Key West, there are 37.7 days annually when the high temperature is over 90°, which is one of the coolest places in Florida.

In Treasure Island, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Florida.

In Key West, there are 0.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Florida.

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

In Key West, 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 Treasure Island with 8.2 inches of rain, and the driest month is November with 1.8 inches. The wettest season is Autumn with 45% of yearly precipitation and 16% occurs in Summer, which is the driest season. The annual rainfall of 50.8 inches in Treasure Island means that it is drier than most places in Florida.


September is the wettest month in Key West with 7.5 inches of rain, and the driest month is February with 1.8 inches. The wettest season is Autumn with 35% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 43.8 inches in Key West means that it is one of the driest places in Florida.

August is the rainiest month in Treasure Island with 15.8 days of rain, and April is the driest month with only 4.8 rainy days. There are 102.5 rainy days annually in Treasure Island, which is one of the least rainy places in Florida. The rainiest season is Autumn when it rains 42% of the time and the driest is Summer with only a 16% chance of a rainy day.

September is the rainiest month in Key West with 15.3 days of rain, and April is the driest month with only 4.4 rainy days. There are 102.0 rainy days annually in Key West, which is one of the least rainy places in Florida. The rainiest season is Autumn when it rains 35% of the time and the driest is Summer with only a 16% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Treasure Island.

Any measurable snowfall is a rare occurance in Key West.