San Antonio weather in December
Mild and comfortable, with occasional showers. Average highs of 19°C and lows of 9°C, with around 7 rainy days expected throughout the month.
While December isn't our top-rated month for San Antonio, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
19°C
Average low
9°C
Rainy days
7 days
Best months to visit
March, April, October
What to do in San Antonio in December
Whatever the weather, San Antonio rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for December
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
17C
Cool, with occasional showers.
February
19C
Mild and comfortable, with occasional showers.
Recommended
March
24C
Mild and comfortable, with some rainy days.
Recommended
April
27C
Warm and pleasant, with some rainy days.
May
30C
Hot and humid, with regular rainfall.
June
33C
Hot and humid, with some rainy days.
July
35C
Very hot, with occasional showers.
August
35C
Very hot, with occasional showers.
September
32C
Hot and humid, with some rainy days.
Recommended
October
28C
Warm and pleasant, with occasional showers.
November
21C
Mild and comfortable, with occasional showers.
December (you are here)
19C
Mild and comfortable, with occasional showers.
Book your December trip to San Antonio
Find hotels, tours and experiences for the perfect escape.
