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