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Weather in San Antonio in January

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temperature
Temp

12° C

average

rain
Rain

14 mm

per month

sun
Sun

56 %

chance

humidity
Humidity

75 %

average

What’s the weather like in San Antonio in January?

In January, San Antonio experiences mild winter weather. However, the mornings and nights can be quite chilly, and it is advisable to pack warm clothing, especially if you plan to be outside for extended periods. The days are usually comfortable and pleasant, with temperatures often reaching the mid-60s Fahrenheit (around 18-20 degrees Celsius).

Average daily temperatures

The average daily temperatures in San Antonio during January range from around 42 to 65 degrees Fahrenheit (6 to 18 degrees Celsius). The beginning of the month tends to be slightly cooler, with temperatures gradually rising as the month progresses. It is essential to layer clothing to adapt to the temperature changes throughout the day.

Sunshine and rainfall

January sees an average of 8 hours of sunshine per day in San Antonio. Despite the cooler temperatures, there are still plenty of sunny days to enjoy outdoor activities. However, it is advisable to check the weather forecast and be prepared for occasional cloudy or overcast days.

Rainfall is relatively low in January, with an average of 1.9 inches (48 mm) throughout the month. While there may be a few rainfall days, the showers are typically short-lived and do not significantly impact outdoor plans.