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Kapolei (HI) Weather and Climate: A Comprehensive Guide

The weather in Kapolei is characterized by a steady average temperature throughout the year. It maintains fairly dry conditions year-round. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The climate in Kapolei remains fairly constant, offering comfortable temperatures throughout the year. On average, daytime temperatures range from a comfortable 28°C in August to a comfortable 25°C in February.

Nighttime temperatures can drop, with average lows reaching 21°C in February. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Kapolei's climate is marked by below-average rainfall, accumulating 377 mm of precipitation yearly. The seasons in Kapolei, bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 53 mm of precipitation. This rainfall is distributed across 12 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 15 mm over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Kapolei Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Kapolei enjoys sunny spells year-round. July sees up to 10.2 hours of daily sunshine, perfect for a sunny trip. December, the least sunny month, still offers a generous 6.6 hours of sun despite this cloudier time of the year. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Honolulu, the United States of America (15 KM, 9 Miles).

Daily hours of sunshine

Data from: Honolulu, the United States of America (15 KM, 9 Miles).

Average water temperature

The mean water temperature over the year ranges from 24°C in February to 27°C in August.

Water temperature over the year

Data from: Honolulu, the United States of America (15 KM, 9 Miles).

Forecast for Kapolei (HI)

Sat   Dec 21
28°C | 19°C
SW 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Sun   Dec 22
28°C | 19°C
W 4 m/s
0.2 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

Mon   Dec 23
29°C | 20°C
E 5 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Kapolei in the United States of America

During the months of January, February, March, April and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Kapolei have a dry season?
    Yes, the months of June, July, August and September are very dry.
  • Which is the warmest month in Kapolei?
    August has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Kapolei?
    The coldest month is February with an average maximum temperature of 25°C.
  • Which is the wettest month in Kapolei?
    December tops the wettest month list with 53 mm of rainfall.
  • Which is the driest month in Kapolei?
    July is the driest month with 15 mm of precipitation.
  • Which is the sunniest month in Kapolei?
    July is the sunniest month with an average of 306 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.