Average data for 10 years
1 September
Monday
+25°
+17°
2 September
Tuesday
+24°
+17°
3 September
Wednesday
+24°
+17°
4 September
Thursday
+24°
+17°
5 September
Friday
+24°
+17°
6 September
Saturday
+24°
+17°
7 September
Sunday
+24°
+17°
8 September
Monday
+24°
+17°
9 September
Tuesday
+24°
+17°
10 September
Wednesday
+24°
+17°
11 September
Thursday
+24°
+17°
12 September
Friday
+24°
+17°
13 September
Saturday
+24°
+17°
14 September
Sunday
+24°
+17°
15 September
Monday
+24°
+17°
16 September
Tuesday
+24°
+17°
17 September
Wednesday
+24°
+17°
18 September
Thursday
+24°
+17°
19 September
Friday
+24°
+17°
20 September
Saturday
+24°
+17°
21 September
Sunday
+24°
+17°
22 September
Monday
+24°
+17°
23 September
Tuesday
+24°
+17°
24 September
Wednesday
+24°
+17°
25 September
Thursday
+24°
+17°
26 September
Friday
+24°
+17°
27 September
Saturday
+24°
+17°
28 September
Sunday
+24°
+17°
29 September
Monday
+24°
+17°
30 September
Tuesday
+24°
+17°
Cities with similar weather in September
Peru
Lima
Australia
Brisbane
Kenya
Nairobi
Colombia
Armenia
Brazil
Sao Paulo
In September, the weather in San Jose is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, San Jose has 29 rainy and 1 partly cloudy day in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit San Jose.