Humid cities · Texas
How humid is Houston in summer?
Across June, July and August, the dew point in Houston averages about 72.6°F, which is tropical on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 73.2°F. On NOAA’s hour by hour normals, about 3,432 hours, about 39% of the year, average a dew point of 65°F or more. That makes it the 7th most humid summer of the 124 US cities we track.
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The highest dew point in the forecast for the next 48 hours is about 69°F, which is muggy.
Houston’s summer dew point averages about 72.6°F, and July nudges it to 73. Getting out of the car is technically a swim.
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 | 72.6°F |
|---|---|
| Muggiest month | July, 73.2°F |
| Hours a year at a 65°F dew point or more | 3,432 (39%) |
| How summer feels | tropical |
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
- Orlando, Florida: about 72.7°F
- Jacksonville, Florida: about 72.3°F
- Pensacola, Florida: about 72.9°F
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00012960. Average dew points, not the stickiest days.