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United StatesThe climate of San Antonio
The current climate in San Antonio features temperatures ranging from a high of 37°C to a low of 20°C throughout the year. The average yearly temperature is around 29°C. At night, temperatures in the colder months average around 7°C and in the warmer months around 25°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for San Antonio, Texas.
Temperature records
The highest temperature recorded in San Antonio in recent years was 42°C in July 2022. The lowest daytime temperature recorded was -3°C in February 2021.
Rainfall amount
On average, San Antonio receives 749 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
The hurricane season in San Antonio runs from June to November.
Best time to visit San Antonio?
The best time to visit San Antonio for sunny weather is January through April, June and September through December. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit San Antonio. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of San Antonio
The climate table of San Antonio shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 20 | 20 | 25 | 28 | 31 | 34 | 36 | 37 | 34 | 29 | 23 | 20 |
| Temp. min (°C) | 7 | 8 | 13 | 17 | 21 | 24 | 25 | 25 | 23 | 18 | 12 | 9 |
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| Precipitation (mm) | 47 | 34 | 45 | 61 | 124 | 70 | 76 | 57 | 73 | 68 | 49 | 45 |
| UV Index | 5 | 5 | 5 | 6 | 6 | 7 | 6 | 7 | 7 | 6 | 4 | 3 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in San Antonio, Texas. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in San Antonio
Yearly Temperature in San Antonio
Precipitation charts
These charts show the average amount of precipitation in San Antonio, Texas. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in San Antonio
Total Yearly Precipitation in San Antonio
UV index chart
This chart shows the average UV index per month in San Antonio, Texas. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in San Antonio
Weather experiences in San Antonio
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Average weather in San Antonio by month
Click on a month below to see detailed weather info for San Antonio. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.