Average data for 10 years
1 September
Sunday
+26°
+20°
2 September
Monday
+26°
+20°
3 September
Tuesday
+25°
+20°
4 September
Wednesday
+24°
+19°
5 September
Thursday
+25°
+18°
6 September
Friday
+25°
+19°
7 September
Saturday
+24°
+19°
8 September
Sunday
+25°
+18°
9 September
Monday
+24°
+19°
10 September
Tuesday
+22°
+17°
11 September
Wednesday
+23°
+17°
12 September
Thursday
+23°
+17°
13 September
Friday
+22°
+17°
14 September
Saturday
+21°
+17°
15 September
Sunday
+22°
+16°
16 September
Monday
+22°
+15°
17 September
Tuesday
+22°
+17°
18 September
Wednesday
+22°
+17°
19 September
Thursday
+24°
+18°
20 September
Friday
+23°
+18°
21 September
Saturday
+22°
+18°
22 September
Sunday
+23°
+17°
23 September
Monday
+22°
+18°
24 September
Tuesday
+22°
+17°
25 September
Wednesday
+22°
+16°
26 September
Thursday
+22°
+16°
27 September
Friday
+21°
+16°
28 September
Saturday
+20°
+16°
29 September
Sunday
+19°
+14°
30 September
Monday
+18°
+13°
Cities with similar weather in September
Georgia
Tbilisi
Bulgaria
Varna
Italy
Florence
Italy
Verona
Bulgaria
The Golden Sands
In September, the weather in Iowa City is typically warm. Average daily high temperature in September is about 23 degrees above zero. On average, Iowa City has 20 sunny, 7 partly cloudy, and 3 rainy days in September. The rains are usually heavy. September as well as August is considered the most comfortable time to visit Iowa City.