Average data for 10 years
1 September
Sunday
+25°
+18°
2 September
Monday
+25°
+16°
3 September
Tuesday
+23°
+15°
4 September
Wednesday
+23°
+16°
5 September
Thursday
+25°
+18°
6 September
Friday
+25°
+17°
7 September
Saturday
+24°
+16°
8 September
Sunday
+24°
+17°
9 September
Monday
+25°
+18°
10 September
Tuesday
+25°
+17°
11 September
Wednesday
+23°
+15°
12 September
Thursday
+21°
+14°
13 September
Friday
+20°
+14°
14 September
Saturday
+20°
+14°
15 September
Sunday
+21°
+15°
16 September
Monday
+22°
+16°
17 September
Tuesday
+23°
+16°
18 September
Wednesday
+23°
+17°
19 September
Thursday
+23°
+17°
20 September
Friday
+21°
+15°
21 September
Saturday
+21°
+14°
22 September
Sunday
+23°
+16°
23 September
Monday
+23°
+17°
24 September
Tuesday
+23°
+17°
25 September
Wednesday
+25°
+19°
26 September
Thursday
+26°
+19°
27 September
Friday
+25°
+18°
28 September
Saturday
+21°
+14°
29 September
Sunday
+20°
+15°
30 September
Monday
+21°
+16°
Cities with similar weather in September
Bulgaria
Varna
Montenegro
Podgorica
Bulgaria
The Golden Sands
Italy
Genoa
France
Marseilles
September in San Jose is the warmest month of the year. In September, the weather in San Jose is typically warm. Average daily high temperature in September is about 23 degrees above zero. On average, San Jose has 29 sunny and 1 partly cloudy day in September. September as well as June, July, and August is considered the most comfortable time to visit San Jose.