Humid cities · Hawaii
How humid is Honolulu in summer?
Across June, July and August, the dew point in Honolulu averages about 66.9°F, which is muggy on the usual dew point scale.
September is the muggiest month, with the dew point averaging about 68.2°F. On NOAA’s hour by hour normals, about 4,843 hours, about 55% of the year, average a dew point of 65°F or more. That makes it the 26th most humid summer of the 124 US cities we track.
Last updated
The highest dew point in the forecast for the next 48 hours is about 69°F, which is muggy.
Honolulu spends about 55% of the year with a dew point of 65°F or more, and September is the muggiest month. Paradise, lightly steamed.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer humidity at a glance
| Dew point, June to August | 66.9°F |
|---|---|
| Muggiest month | September, 68.2°F |
| Hours a year at a 65°F dew point or more | 4,843 (55%) |
| How summer feels | muggy |
The dew point is the temperature the air would have to cool to for dew to form, so the higher it is, the more water the air holds. Forecasters usually call under 55°F comfortable, 55 to 65°F sticky and 65°F or more muggy; 70°F or more feels tropical.
Cities with about the same summer air
- Atlanta, Georgia: about 67.1°F
- Raleigh, North Carolina: about 67.1°F
- Chattanooga, Tennessee: about 67.2°F
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00022521. Average dew points, not the stickiest days.