Average data for 10 years
1 January
Monday
+14°
+8°
2 January
Tuesday
+11°
+8°
3 January
Wednesday
+14°
+10°
4 January
Thursday
+13°
+9°
5 January
Friday
+13°
+8°
6 January
Saturday
+13°
+9°
7 January
Sunday
+14°
+9°
8 January
Monday
+14°
+10°
9 January
Tuesday
+14°
+9°
10 January
Wednesday
+13°
+9°
11 January
Thursday
+15°
+11°
12 January
Friday
+15°
+10°
13 January
Saturday
+13°
+9°
14 January
Sunday
+14°
+10°
15 January
Monday
+14°
+10°
16 January
Tuesday
+15°
+11°
17 January
Wednesday
+15°
+9°
18 January
Thursday
+16°
+11°
19 January
Friday
+18°
+14°
20 January
Saturday
+19°
+14°
21 January
Sunday
+18°
+12°
22 January
Monday
+18°
+11°
23 January
Tuesday
+16°
+10°
24 January
Wednesday
+16°
+10°
25 January
Thursday
+17°
+11°
26 January
Friday
+18°
+13°
27 January
Saturday
+18°
+12°
28 January
Sunday
+17°
+12°
29 January
Monday
+18°
+11°
30 January
Tuesday
+17°
+12°
31 January
Wednesday
+18°
+13°
January in San Antonio is the coldest month of the year. In January, the weather in San Antonio is typically warm. Average daily high temperature in January is about 15 degrees above zero. On average, San Antonio has 13 sunny, 13 partly cloudy, and 5 rainy days in January. The rains are usually moderate.