Average data for 10 years
1 September
Monday
+29°
+14°
2 September
Tuesday
+29°
+14°
3 September
Wednesday
+29°
+14°
4 September
Thursday
+29°
+13°
5 September
Friday
+29°
+14°
6 September
Saturday
+30°
+14°
7 September
Sunday
+30°
+14°
8 September
Monday
+29°
+14°
9 September
Tuesday
+28°
+14°
10 September
Wednesday
+28°
+13°
11 September
Thursday
+28°
+14°
12 September
Friday
+28°
+14°
13 September
Saturday
+27°
+14°
14 September
Sunday
+27°
+13°
15 September
Monday
+26°
+12°
16 September
Tuesday
+26°
+12°
17 September
Wednesday
+26°
+13°
18 September
Thursday
+26°
+13°
19 September
Friday
+27°
+13°
20 September
Saturday
+28°
+13°
21 September
Sunday
+27°
+13°
22 September
Monday
+27°
+12°
23 September
Tuesday
+27°
+12°
24 September
Wednesday
+28°
+13°
25 September
Thursday
+27°
+13°
26 September
Friday
+28°
+13°
27 September
Saturday
+27°
+13°
28 September
Sunday
+27°
+13°
29 September
Monday
+26°
+12°
30 September
Tuesday
+26°
+12°
Cities with similar weather in September
Portugal
Porto
France
Marseilles
France
Cannes
France
Bordeaux
United States
Denver
In September, the weather in Santa Rosa is typically warm. Average daily high temperature in September is about 28 degrees above zero. On average, Santa Rosa has 26 sunny, 3 partly cloudy, and 1 rainy day in September. The rains are usually light. September as well as May, June, and October is considered the most comfortable time to visit Santa Rosa.