Normal weather in San Antonio in January
The weather in San Antonio in January has an average temperature of around 28°C during the day. On average, January sees 38 mm of rain in San Antonio. The wind speed is 4 Beaufort and mainly comes from Southeast.
After December, January in San Antonio starts with a temperature of 29°C and ends around February at 27°C.
January averages for San Antonio
 Average temperature | 28°C |
 Highest daytime temperature | 30°C |
| Lowest daytime temperature | 26°C |
 Total rainfall | 38 mm |
| Rainy days | 16 days |
Temperature per day in January in San Antonio
This graph shows the average daily maximum temperatures in January in San Antonio, indicated in degrees Celsius.
Precipitation per day in January in San Antonio
This graph shows the average daily precipitation in January in San Antonio, indicated in millimeters.
UV index per day in January in San Antonio
This graph shows the average daily UV index in January in San Antonio.
Yearly temperature in January in San Antonio
This graph shows the average yearly temperature in January in San Antonio, measured in degrees Celsius, over the past years.
Yearly total precipitation in January in San Antonio
This graph shows the average yearly precipitation in millimeters in January in San Antonio, over the past years.
Average daily weather in January
Click on a day to get more information about the average weather on that day.
Average weather in San Antonio per month
Click on a month below to see in detail how the weather typically is in San Antonio and what to expect. Based on the historical weather data of San Antonio, you can view the average temperature, precipitation, wind, and UV index for each day of the month.