Kapolei (HI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kapolei.
Climate overview of Kapolei
With consistently stable weather, Kapolei, Hawaii, United States of America, sees little seasonal temperature change. Daytime highs average 27°C (81°F), ranging from 28°C (82°F) in August to 25°C (77°F) in February.
The city has a relatively dry climate, receiving around 377 mm (15 in) of rainfall per year. It does experience a distinct dry season from April to October. December is the wettest month and July the driest. The sunniest month is July, with 10.2 hours of sunshine per day on average.
Kapolei Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kapolei — and find the best time to visit.
Monthly Temperature in Kapolei
The climate in Kapolei remains fairly constant, offering comfortable temperatures throughout the year. On average, daytime temperatures range from a comfortable 28°C (82°F) in August to a comfortable 25°C (77°F) in February.
Nighttime temperatures range from 25°C (77°F) in August to 21°C (70°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Kapolei
Kapolei's climate is marked by below-average rainfall, accumulating 377 mm (15 in) 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 (2.1 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 15 mm (0.6 in) 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
The average number of days each month with precipitation
Sunshine Hours in Kapolei
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
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Kapolei
The mean water temperature over the year ranges from 24°C (75°F) in February to 27°C (81°F) in August.
Water temperature over the year
Humidity in Kapolei by Month
The relative humidity is high throughout the year in Kapolei.
The city experiences its highest humidity in January, reaching 73%. In June, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Kapolei
The mean wind speed varies between 3 m/s (6 knots) and 5 m/s (10 knots) throughout the year. It is lowest in January and highest during June, July and August. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Kapolei
The weather does bring rainfall during this period, between 21 mm (0.8 in) and 53 mm (2.1 in). Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Kapolei
What is the best time to visit Kapolei?
Kapolei has a distinct dry season from April to October.
What temperatures can I expect in Kapolei?
Daytime highs range from 25°C (77°F) in February to 28°C (82°F) in August. Nighttime lows range from 21°C (70°F) to 25°C (77°F). Temperatures stay relatively stable year-round.
How much rain does Kapolei get?
Annual rainfall is around 377 mm (15 in). December is the wettest month with 53 mm (2.1 in), while July is the driest with 15 mm (0.6 in).
How sunny is Kapolei?
Kapolei receives around 3,036 hours of sunshine per year. July is the sunniest month with 306 hours, while December is the cloudiest with just 199 hours. Overall, Kapolei enjoys abundant sunshine.
Kapolei 3-Day Forecast
Kapolei (HI) 3-Day Forecast
Kapolei on the map
Kapolei is highlighted — select any city to see its climate.
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