Kauai County, HI Climate

Kauai, HI County has a tropical climate that is perfect for outdoor activities. The temperatures range from 70 to 84 degrees Fahrenheit year round and the average amount of rainfall is just over 50 inches per year, making for a nice balance between sunny days and rain. Due to its location in the Hawaiian islands, Kauai enjoys an abundance of sunshine all year long with minimal extremes in temperature. Additionally, the humidity levels are usually quite comfortable and rarely oppressive. With its mild climate and lush scenery, Kauai is an ideal destination for anyone looking to enjoy some time outside in paradise.

Kauai County, Hawaii gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Kauai County averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 240 sunny days per year in Kauai County. The US average is 205 sunny days.

Kauai County gets some kind of precipitation, on average, 144 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 85 degrees
Winter Low: the January low is 64
Rain: averages 41 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Kauai County is 8.7 (10=best), which means it is about average compared to other places in Hawaii.

8 Summer - 9.1 Winter

February, January and April are the most pleasant months in Kauai County, while August and September are the least comfortable months.

Climate	Kauai, Hawaii	United States
	Unlock	38.1 in.
	0.0 in.	Unlock
	Unlock	106.2 days
	240 days	Unlock
	85.1°	85.8°
	Unlock	21.7°
	8.7	Unlock
	Unlock	4.3
	1162 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

September is the hottest month for Kauai County with an average high temperature of 85.8°, which ranks it as warmer than most places in Hawaii. In Kauai County, there are 9 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kauai County are February, January and March.

In Kauai County, there are 3.6 days annually when the high temperature is over 90°, which is about average compared to other places in Hawaii.

February has the coldest nighttime temperatures for Kauai County with an average of 63.0°. This is about average compared to other places in Hawaii.

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

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

Despite the high humidity in Kauai County, the trade winds keep it pleasant. If the trade winds stop blowing (which is rare), a summer day can be unpleasantly humid. The most humid months in Kauai County are February, January and March.

December is the wettest month in Kauai County with 5.7 inches of rain, and the driest month is June with 1.7 inches. The wettest season is Spring with 33% of yearly precipitation and 16% occurs in Autumn, which is the driest season. The annual rainfall of 41.2 inches in Kauai County means that it is about average compared to other places in Hawaii.

October is the rainiest month in Kauai County with 13.1 days of rain, and February is the driest month with only 9.9 rainy days. There are 144.4 rainy days annually in Kauai County, which is about average compared to other places in Hawaii. The rainiest season is Winter when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.

There is rarely any recorded snowfall in Kauai County, ranking it as one of the least snowy places in Hawaii. Any measurable snowfall is a rare occurance in Kauai County.

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