Hilo, Hawaii 

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Climate in Hilo, Hawaii

Hilo, Hawaii gets 143 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 175 sunny days per year in Hilo. The US average is 205 sunny days.

Hilo gets some kind of precipitation, on average, 236 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 81 degrees
Winter Low: the January low is 63
Rain: averages 143 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Hilo is 8.6 (10=best), which means it is less comfortable than most places in Hawaii.

8.6 / 10
January, February and December are the most pleasant months in Hilo, while August and September are the least comfortable months.

Climate Averages
  Hilo, HawaiiUnited States
  143.1 in.38.1 in.
  0.0 in.27.8 in.
  235.8 days106.2 days
  175 days205 days
  20 ft.2443 ft.


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 Hilo with an average high temperature of 81.7°, which ranks it as cooler than most places in Hawaii. In Hilo, there are 12 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hilo are December, April and March.

February has the coldest nighttime temperatures for Hilo with an average of 62.8°. This is about average compared to other places in Hawaii.

In Hilo, there are 0.0 days annually when the high temperature is over 90°, which is cooler than most places in Hawaii.

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

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

November is the wettest month in Hilo with 15.9 inches of rain, and the driest month is June with 8.4 inches. The wettest season is Winter with 27% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 143.1 inches in Hilo means that it is one of the wettest places in Hawaii.

April is the rainiest month in Hilo with 21.9 days of rain, and February is the driest month with only 14.9 rainy days. There are 235.8 rainy days annually in Hilo, 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 21% chance of a rainy day.

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

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Hilo    7 Reviews
    A town that is in disrepair - 10/14/2019
    I lived in Hilo many, many years. Nice, small town feel, even though it's the second largest city in the state. Prejudice against whites, well, it's Hawaii. It was MUCH... Read More

    Start Your Review of Hilo

    Beautiful Hilo, Hi - 4/24/2012
    Hilo Hawaii is one of the beautiful locations in the world. With an average of over 100 inches a year and tropical climate it is stunning with green. Very old and small... Read More

    Nice place to live - 10/18/2008
    Actually I live in Japan now, but Hilo was a great place to live. Really laid back and local. The only thing is it rains a lot, but when the sun's out it's much more... Read More

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