Honolulu County, HI Climate

Honolulu, HI County has a tropical climate, with year-round warm temperatures and plenty of sunshine. The average high temperature is around 85 degrees Fahrenheit (29 degrees Celsius) and the average low temperature is around 68 degrees Fahrenheit (20 degrees Celsius). Rainfall is abundant, with an annual average of around 25 inches (63 centimeters). Despite this abundance of rain, the city rarely experiences extreme weather conditions as it is sheltered by mountain ranges on either side. As such, Honolulu enjoys comfortable weather all year round with relatively mild winters perfect for exploring its many beaches and outdoors attractions.

Honolulu County, Hawaii gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 271 sunny days per year in Honolulu County. The US average is 205 sunny days.

Honolulu County gets some kind of precipitation, on average, 186 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 65
Rain: averages 45 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Honolulu County is 8.5 (10=best), which means it is less comfortable than most places in Hawaii.

7.8 Summer - 8.8 Winter

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

Climate	Honolulu, Hawaii	United States
	44.8 in.	38.1 in.
	0.0 in.	27.8 in.
	185.8 days	106.2 days
	271 days	205 days
	84.9°	85.8°
	64.8°	21.7°
	8.5	7
	9.3	4.3
	727 ft.	2443 ft.

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.

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

In Honolulu County, there are 9.0 days annually when the high temperature is over 90°, which is hotter than most places in Hawaii.

February has the coldest nighttime temperatures for Honolulu County with an average of 64.6°. This is warmer than most places in Hawaii.

In Honolulu 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 Honolulu 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 Honolulu 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 Honolulu County are September, August and October.

December is the wettest month in Honolulu County with 5.9 inches of rain, and the driest month is June with 2.2 inches. The wettest season is Spring with 32% of yearly precipitation and 17% occurs in Autumn, which is the driest season. The annual rainfall of 44.8 inches in Honolulu County means that it is about average compared to other places in Hawaii.

July is the rainiest month in Honolulu County with 17.5 days of rain, and February is the driest month with only 12.5 rainy days. There are 185.8 rainy days annually in Honolulu County, which is about average compared to other places in Hawaii. The rainiest season is Autumn when it rains 26% of the time and the driest is Spring with only a 23% chance of a rainy day.

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

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