Honolulu (HI) Temperature by Month

Honolulu, Hawaii, United States of America has a consistently comfortable climate year-round, with daytime highs averaging 27°C (81°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Year-round, Honolulu experiences a consistently comfortable climate. 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. Nighttime temperatures range from 24°C (75°F) in August to 21°C (70°F) in February.

The chart below illustrates the average maximum day and minimum night temperatures in Honolulu by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 303 hours of sunshine.

The chart below shows the average temperature throughout the year:

Honolulu's average annual maximum temperature is 27°C (81°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Honolulu, February is the coolest month, with average highs of 25°C (77°F) and humidity around 71%, considered high. In August, the warmest month, temperatures average 29°C (84°F) with 64% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Honolulu's weather, including monthly rainfall, sunshine hours, and humidity, visit our Honolulu climate page.