Average data for 10 years
1 September
Sunday
+13°
+12°
2 September
Monday
+14°
+12°
3 September
Tuesday
+13°
+12°
4 September
Wednesday
+12°
+11°
5 September
Thursday
+13°
+12°
6 September
Friday
+13°
+11°
7 September
Saturday
+12°
+12°
8 September
Sunday
+12°
+11°
9 September
Monday
+12°
+11°
10 September
Tuesday
+12°
+10°
11 September
today
+11°
+10°
12 September
tomorrow
+12°
+10°
13 September
Friday
+11°
+9°
14 September
Saturday
+11°
+9°
15 September
Sunday
+11°
+9°
16 September
Monday
+11°
+10°
17 September
Tuesday
+11°
+10°
18 September
Wednesday
+11°
+9°
19 September
Thursday
+10°
+9°
20 September
Friday
+9°
+8°
21 September
Saturday
+9°
+8°
22 September
Sunday
+9°
+8°
23 September
Monday
+9°
+8°
24 September
Tuesday
+8°
+7°
25 September
Wednesday
+8°
+7°
26 September
Thursday
+8°
+8°
27 September
Friday
+8°
+7°
28 September
Saturday
+9°
+8°
29 September
Sunday
+8°
+8°
30 September
Monday
+8°
+6°
In September, the weather in Kostroma is typically warm. Average daily high temperature in September is about 11 degrees above zero. On average, Kostroma has 13 rainy, 7 sunny, 7 partly cloudy, and 3 cloudy days in September. The rains are usually moderate. September as well as January, February, May, and October is considered the most uncomfortable time to visit Kostroma.