Kapaa, Hawaii 

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Climate in Kapaa, Hawaii

Kapaa, Hawaii gets 60 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 239 sunny days per year in Kapaa. The US average is 205 sunny days.

Kapaa gets some kind of precipitation, on average, 234 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 60 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Kapaa is 8.1 (10=best), which means it is one of the least comfortable places in Hawaii.

8.1 / 10
February, January and March are the most pleasant months in Kapaa, while August and September are the least comfortable months.

Climate Averages
  Kapaa, HawaiiUnited States
  60.2 in.38.1 in.
  0.0 in.27.8 in.
  233.8 days106.2 days
  239 days205 days
  121 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 Kapaa with an average high temperature of 85.5°, which ranks it as warmer than most places in Hawaii. In Kapaa, there are 9 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kapaa are January, February and March.

February has the coldest nighttime temperatures for Kapaa with an average of 63.5°. This is warmer than most places in Hawaii.

In Kapaa, there are 4.6 days annually when the high temperature is over 90°, which is hotter than most places in Hawaii.

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

In Kapaa, 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 Kapaa with 7.8 inches of rain, and the driest month is June with 3.2 inches. The wettest season is Spring with 29% of yearly precipitation and 19% occurs in Autumn, which is the driest season. The annual rainfall of 60.2 inches in Kapaa means that it is wetter than most places in Hawaii.

July is the rainiest month in Kapaa with 22.9 days of rain, and February is the driest month with only 14.2 rainy days. There are 233.8 rainy days annually in Kapaa, which is rainier than most places in Hawaii. The rainiest season is Autumn when it rains 28% of the time and the driest is Spring with only a 21% chance of a rainy day.

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

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Kapaa    3 Reviews
    Nice little town - 2/23/2018
    My wife and I had the pleasure of visiting Kapaa in July of 2017. As tourists we found it a wonderful place. There were ample places to eat and shop for souvenirs. ... Read More

    Start Your Review of Kapaa

    Why I Love Kapaa - 11/7/2017
    For many, Kapaa is considered middle of the island in a way. Whether you are going North or going South, Kapaa seems to be a great midway point. There are tons of... Read More

    Life on Kauai - 2/19/2008
    Great quality of life. Clean, little crime; small-town... Read More

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