Humid cities · Texas
How humid is San Antonio in summer?
San Antonio right now
62°FClear skies
- Today68°F / 60°FRain
- Tomorrow70°F / 52°FRain
- Monday60°F / 46°FClouds
Nice out. Annoyingly.
Live from OpenWeatherMap. Alerts from the National Weather Service.
Across June, July and August, the dew point in San Antonio averages about 69.3°F, which is muggy on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 69.7°F. On NOAA’s hour by hour normals, about 2,912 hours, about 33% of the year, average a dew point of 65°F or more. That makes it the 16th 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 66°F, which is muggy.
San Antonio’s summer dew point averages about 69.3°F, a third of the year at 65°F or more. The River Walk is the second wettest thing in town.
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 | 69.3°F |
|---|---|
| Muggiest month | July, 69.7°F |
| Hours a year at a 65°F dew point or more | 2,912 (33%) |
| 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
- Little Rock, Arkansas: about 69.4°F
- Memphis, Tennessee: about 68.6°F
- Columbia, South Carolina: about 68.5°F
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Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00012921. Average dew points, not the stickiest days.