Average data for 10 years
1 September
Sunday
+21°
+15°
2 September
Monday
+19°
+14°
3 September
Tuesday
+17°
+11°
4 September
Wednesday
+18°
+11°
5 September
Thursday
+18°
+12°
6 September
Friday
+19°
+12°
7 September
Saturday
+20°
+12°
8 September
Sunday
+21°
+14°
9 September
Monday
+19°
+13°
10 September
Tuesday
+19°
+12°
11 September
Wednesday
+21°
+13°
12 September
Thursday
+18°
+13°
13 September
Friday
+19°
+11°
14 September
Saturday
+20°
+13°
15 September
Sunday
+20°
+14°
16 September
Monday
+19°
+12°
17 September
Tuesday
+20°
+13°
18 September
Wednesday
+20°
+13°
19 September
Thursday
+21°
+14°
20 September
Friday
+21°
+13°
21 September
Saturday
+19°
+13°
22 September
Sunday
+18°
+12°
23 September
Monday
+19°
+11°
24 September
Tuesday
+21°
+13°
25 September
Wednesday
+20°
+13°
26 September
Thursday
+20°
+13°
27 September
Friday
+21°
+13°
28 September
Saturday
+19°
+14°
29 September
Sunday
+19°
+13°
30 September
Monday
+20°
+13°
Cities with similar weather in September
Ireland
Dublin
Argentina
Buenos Aires
New Zealand
Auckland
South Africa
Capetown
United Kingdom
Looe
In September, the weather in Santa Rosa is typically warm. Average daily high temperature in September is about 20 degrees above zero. On average, Santa Rosa has 28 sunny and 2 partly cloudy days in September. September as well as October is considered the most comfortable time to visit Santa Rosa.