Temperatures in January
It's pleasantly warm in January in San Antonio with an average temperature of 20°C. Temperatures this month range from a low of 13°C to a high of 24°C. At night, you can expect temperatures between 1°C and 11°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for San Antonio in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in San Antonio with mild temperatures, averaging around 18°C during the day and nights close to 6°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-January
By mid-January, the average daytime temperature rises to around 21°C, with nights close to 10°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of January
By the end of January, the average daytime temperature in San Antonio will be around 21°C, with nights close to 7°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
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Precipitation in January
In January, there is an average of 47 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The precipitation chance averages 14% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for San Antonio. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
San Antonio in January |
London | ||
|---|---|---|---|
 Average Temperature |
20°C | 8°C | |
 High Temp |
24°C | 9°C | |
| Low Temp |
13°C | 6°C | |
 Total Precipitation |
47 mm | 58 mm | |
| Rainy Days |
4 days | 9 days | |
December
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is January a good time to visit San Antonio?
Want nice weather? Then January is a great time to be in San Antonio. You’ll have pleasant temperatures and not too much rain this month.
Check out the climate of San Antonio for all months and discover the best travel time
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Daily Temperature in January in San Antonio
This chart shows the average daily temperatures, both day and night, for each day in January in San Antonio, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in San Antonio
The chart below shows the average daily precipitation in January for San Antonio, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 4 days of rain in San Antonio.
Daily UV Index in January in San Antonio
This chart shows the average daily UV index in January in San Antonio, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in San Antonio Over the Years
This chart shows the average temperature in January in San Antonio, measured in degrees Celsius, over the past years.
Total Precipitation in January in San Antonio Over the Years
This chart shows the average precipitation in January in San Antonio, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in January for San Antonio
Click on a specific day in January for detailed info on the typical weather on that day in San Antonio. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January 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.
Or check out the climate of San Antonio for all months at once
