Weather in San Antonio: December
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Average day temperature: | 65.9°F |
| Average night temperature: | 54.3°F | |
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Number of sunny days: | 13 days |
| Day length: | 10.3 - 10.4 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.3 in. | |
| more information | ||
14 days
forecast
forecast
| San Antonio |
weather in
January
January
| San Antonio |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 78°F. At the same time the lowest night temperature was 36°F. Daily and nightly averages during December were 66.0°F and 52.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in San Antonio in December is 0.3 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 7.8 mph It makes December lest windy month of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 5.6.
Best time for vacation in San Antonio
San Antonio on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Antonio
Local time: 19:38
February 07, saturday
2100
68°F
NW
8 mph
8 mph
February 08, sunday
0000
59°F
N
6 mph
6 mph
0300
54°F
N
4 mph
4 mph
0600
54°F
N
2 mph
2 mph
0900
54°F
N
7 mph
7 mph
1200
59°F
N
10 mph
10 mph
1500
63°F
N
9 mph
9 mph
1800
63°F
N
7 mph
7 mph
