Honolulu (HI) Weather & Climate: Best Time to Visit

Honolulu experiences a tropical semi-arid climate. Annual average rainfall is 425 mm (17 in), it mainly rains during the winter months. Temperatures vary little throughout the year, with average high temperatures of 27°C (81°F) to 32°C (90°F) and average lows of 18°C (64°F) to 24°C (75°F).

Summer takes place between May and October and it becomes winter between October and April.

Monthly Temperature in Honolulu

With minimal seasonal shifts, Honolulu experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in August to a comfortable 25°C (77°F) in the coolest month, February.

Nights vary from 24°C (75°F) in August to around 21°C (70°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Honolulu

With annual rainfall averaging 426 mm (17 in), Honolulu maintains relatively low precipitation levels throughout the seasons. The climate in Honolulu shows significant variation throughout the year. Expect moderate rainfall in December, the wettest month, with an average of 55 mm (2.2 in) of precipitation over 12 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 21 mm (0.8 in) 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 Hours in Honolulu

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

Water Temperature in Honolulu

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 Honolulu by Month

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%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

Wind Speed in Honolulu

The average wind speed over the year ranges from 3 m/s (6 knots) to 5 m/s (10 knots). It is lower in January and higher in June, July and August. What does this mean?

The mean monthly wind speed over the year (meters per second)

Honolulu (HI) 3-Day Forecast

10-Day Forecast

Select a Month

Check the conditions for any month of the year.

Best Time to Visit Honolulu

Honolulu's weather is most enjoyable during January, February, March, April, May, November and December, with comfortable temperatures from 25°C (77°F) to 27°C (80°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 26 mm (1 in) and 55 mm (2.2 in), providing a good balance of sunny and rainy days.

Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.