What’s the climate like in San Antonio?
The current climate of San Antonio features average monthly temperatures ranging from highs of 37°C during the day to lows of 20°C. 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.
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.
On average, San Antonio receives 749 mm of precipitation each year. For comparison, London gets 701 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 good 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.
Climate Table of San Antonio
The climate table of San Antonio shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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.
- Average yearly temperature: 29°C
- Highest temperature: 37°C in August
- Lowest temperature: 20°C in January, February and December
- Precipitation: 749 mm per year, averaging 62 mm per month
- Driest months: 34 mm in February, 45 mm in March and December
- Wettest months: 124 mm in May, 76 mm in July and 73 mm in September
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Table of Contents
Average Temperature per Month in San Antonio
This graph shows the average maximum temperatures per month in San Antonio, Texas. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in San Antonio
This graph shows how much precipitation San Antonio, Texas, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in San Antonio
This graph 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.
Yearly Temperature in San Antonio
This graph shows the average yearly temperature in San Antonio, Texas. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in San Antonio
This chart shows the total yearly precipitation in San Antonio, Texas, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
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.
