Kailua Weather and Climate: A Comprehensive Guide
Kailua has a steady warm climate throughout the year.
It maintains moderate precipitation patterns.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
In Kailua temperatures are generally consistent throughout the year. Typically, average maximum daytime temperatures range from a comfortable 28°C in September to a comfortable 25°C in the coolest month, February.
Nights are cooler, with lows often dropping to around 21°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
On average, Kailua receives a reasonable amount of rainfall, with an annual precipitation of 513 mm. Kailua offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between December (61 mm) and July (31 mm) is not too significant, making the climate enjoyable for visitors and residents alike.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Kailua offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between July (10.2 hours daily) and December (6.6 hours daily) provides a bit of variety for visitors and residents. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
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
Average humidity
The relative humidity is high throughout the year in Kailua.
The city experiences its highest humidity in January, reaching 73%. In June, the humidity drops to its lowest level at 64%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The average wind speed over the year ranges from 3 m/s to 5 m/s. It is lower in January and higher in June, July and August.
The mean monthly wind speed over the year (meters per second)
partly cloudy and small chance of slight rain partly cloudy and small chance of rain partly cloudy and small chance of slight rainForecast for Kailua
8 m/s
6 m/s
7 m/s
The best time of year to visit Kailua 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:
September has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 25°C.
December tops the wettest month list with 61 mm of rainfall.
July is the driest month with 31 mm of precipitation.
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.
