Average data for 10 years
1 September
Monday
+12°
+10°
2 September
Tuesday
+12°
+10°
3 September
Wednesday
+12°
+10°
4 September
Thursday
+12°
+10°
5 September
Friday
+12°
+10°
6 September
Saturday
+12°
+11°
7 September
Sunday
+12°
+10°
8 September
Monday
+12°
+10°
9 September
Tuesday
+12°
+10°
10 September
Wednesday
+12°
+10°
11 September
Thursday
+12°
+10°
12 September
Friday
+12°
+10°
13 September
Saturday
+12°
+10°
14 September
Sunday
+13°
+10°
15 September
Monday
+13°
+10°
16 September
Tuesday
+13°
+11°
17 September
Wednesday
+12°
+10°
18 September
Thursday
+12°
+11°
19 September
Friday
+13°
+10°
20 September
Saturday
+12°
+11°
21 September
Sunday
+12°
+11°
22 September
Monday
+13°
+11°
23 September
Tuesday
+13°
+11°
24 September
Wednesday
+13°
+11°
25 September
Thursday
+12°
+11°
26 September
Friday
+12°
+10°
27 September
Saturday
+12°
+11°
28 September
Sunday
+12°
+11°
29 September
Monday
+12°
+11°
30 September
Tuesday
+12°
+11°
Cities with similar weather in September
Finland
Helsinki
Latvia
Riga
Estonia
Tallinn
Sweden
Stockholm
Norway
Oslo
In September, the weather in San Antonio is typically warm. Average daily high temperature in September is about 12 degrees above zero. On average, San Antonio has 14 sunny, 10 partly cloudy, 3 rainy, and 3 cloudy days in September. The rains are usually moderate.