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