Climate normals · 1970–2000
San Antonio Climate
San Antonio is a city in United States (TX) with a population of about 1,526,656. Its average annual temperature is 20.5°C (69°F), with roughly 796 mm of rain per year.
20.5°C
Avg Temp
796
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
San Antonio Climate
San Antonio has an average annual temperature of 20.5°C (69°F) and receives about 796 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
20.5°C
Avg Temp
796
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 11° / 51° | 43 mm |
| February | 13° / 55° | 46 mm |
| March | 17° / 63° | 43 mm |
| April | 21° / 69° | 66 mm |
| May | 24° / 76° | 112 mm |
| June | 27° / 81° | 97 mm |
| July | 29° / 84° | 50 mm |
| August | 29° / 84° | 64 mm |
| September | 26° / 79° | 84 mm |
| October | 22° / 71° | 88 mm |
| November | 16° / 61° | 58 mm |
| December | 12° / 53° | 45 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit San Antonio
The most comfortable months to visit San Antonio are typically April, October and March, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 35°C high). The coldest is January (near 4°C low). May is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit San Antonio are typically April, October and March, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
San Antonio, United States has an average annual temperature of 20.5°C and about 796 mm of precipitation per year. The warmest month is July and the coldest is January.
In July, the hottest month, daily highs in San Antonio average about 35°C (95°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.