Honolulu (HI) Weather and Climate: A Comprehensive Guide
Honolulu experiences a tropical semi-arid climate. Annual average rainfall is 425 mm, it mainly rains during the winter months. Temperatures vary little throughout the year, with average high temperatures of 27°C to 32°C and average lows of 18°C to 24°C.
Summer takes place between May and October and it becomes winter between October and April.
Average maximum day and minimum night temperature
With minimal seasonal shifts, Honolulu experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a comfortable 29°C in August 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
With annual rainfall averaging 426 mm, Honolulu maintains relatively low precipitation levels throughout the seasons. The climate in Honolulu shows significant variation throughout the year. Expect moderate rainfall in December, with an average of 55 mm of precipitation over 12 rainy days. In contrast, July offers drier and sunnier days, with around 21 mm of rainfall over 9 rainy days. For more details, please visit our Honolulu Precipitation page.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
Honolulu 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 Honolulu.
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)
broken clouds and no rain partly cloudy and small chance of slight rain partly cloudy and small chance of slight rainForecast for Honolulu (HI)
4 m/s
5 m/s
8 m/s
The best time of year to visit Honolulu 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:
August has an average maximum temperature of 29°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 55 mm of rainfall.
July is the driest month with 21 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.
