As of 21:49 CDT

San Antonio, TX weather in December

87°

San Antonio, Saturday, 8 August, 21:49

Overcast. Feels like 95°. High 97°, low 74°.

Pressure30.00 inHg

Wind10 mph N

Humidity64%

Visibility6.2 mi

Dew point74°

See detailed hourly forecast

In December, San Antonio, TX averages a high of 63.6° and a low of 46.4°. About 2.1 inches of precipitation fall over the month (8 wet days). The record high is 85.8° (2024) and the record low 11.8° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	65.3°	47.3°	18%	80.2° (2012)	29.8° (1976)
2	66.7°	48.7°	23%	79.7° (1982)	31.3° (1974)
3	66.4°	49.5°	20%	81.9° (1999)	32.2° (1974)
4	65.1°	48.6°	27%	80.8° (2017)	34° (2006)
5	65.1°	48.9°	30%	81° (1977)	28.6° (2009)
6	64.8°	47.8°	20%	81.1° (1966)	32.5° (1972)
7	63.9°	47.3°	25%	82.6° (1966)	28.6° (2011)
8	65.5°	48.4°	30%	79.5° (2007)	28.8° (2005)
9	65.5°	47.8°	22%	80.1° (2021)	29.3° (1978)
10	62.8°	46.2°	32%	82.8° (2021)	24.6° (1978)
11	63.3°	45.7°	32%	81.3° (1987)	29.5° (1978)
12	64.2°	46°	25%	79.7° (1973)	29.5° (1978)
13	64.6°	47.3°	32%	78.4° (2019)	27.7° (1989)
14	64.8°	47.8°	30%	78.4° (1975)	26.8° (1985)
15	63.7°	46.4°	30%	80.1° (2019)	28.8° (1963)
16	62.1°	45.7°	28%	80.8° (2021)	23.2° (1989)
17	61.9°	45°	22%	82° (1990)	24.3° (1972)
18	63°	46°	23%	79.9° (2012)	27° (1964)
19	63.3°	46.6°	32%	80.6° (2012)	23° (1996)
20	63.3°	46.8°	17%	77.5° (1978)	27.9° (1996)
21	63.7°	46.6°	18%	79° (1970)	27.3° (1973)
22	64°	45.3°	18%	79.5° (2025)	19.4° (1989)
23	61.5°	45.7°	20%	79° (2025)	11.8° (1989)
24	60.3°	43.9°	15%	79.9° (1964)	18.7° (1983)
25	60.3°	42.3°	18%	80.6° (1964)	13.6° (1983)
26	61.5°	43.3°	30%	80.8° (2008)	17.6° (1983)
27	63.9°	44.8°	23%	82.9° (2005)	27.7° (1983)
28	63°	46.8°	27%	78.4° (2024)	30.2° (1983)
29	62.6°	45.5°	22%	81.3° (2021)	20.5° (1983)
30	63°	45.9°	27%	85.8° (2024)	19° (1983)
31	62.4°	45°	20%	81.7° (2021)	23.2° (1983)