San Antonio Weather in December

What's the weather like in San Antonio (Texas) in December 2024?

The climate in San Antonio during December can be summarized as mild and reasonably dry.

December is in the winter in San Antonio and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 5°C (41°F) is normal.

San Antonio weather averages (imperial / metric)
Daytime temperature 17.9°C 64.2°F
Nightly temperature 5.1°C 41.2°F
Average temperature 11.5°C 52.7°F
Daily sunshine 5.2 hrs
Avg rainfall 38 mm 1.5 ins
Rainy days 7 days
Sea temperature 19.7°C 67.5°F
Humidity 69%
Windspeed 15.1kph 9 mph

On average December is the 3rd driest month of the year in San Antonio with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.2 hours of sunshine per day.

December temperatures in San Antonio

San Antonio average temperature in December

December rainfall

San Antonio average rain in December

December hourly sunshine

San Antonio average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Antonio in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

San Antonio weather stats

San Antonio weather statistics
Hottest month: July 34.8°C 94.6°F
Driest month: March 37mm 1.5ins
Sunniest month: July 10.6hrs
Coldest month: January 15.8°C 60.4°F
Wettest month: May 94mm 3.7ins
Map showing location of San Antonio (29.42412, -98.49363) San Antonio map pin © Google

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