Annual mean 28°C · wettest around October · prevailing wind SW
Warmest
32.1 °C
Coldest
27.6 °C
Wettest
58%
Windiest
5.2 m/s
Prevailing
SW
4.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Cotonou over the whole year is 28°C. February is the hottest month, with highs of about 32°C; August is the coldest, with lows of about 25°C. The rainy (wet) season in Cotonou runs from September to November, peaking in October with a 46% chance of rain on a given day. The dry season is December to February; December is the driest month, at 10%. Winds in Cotonou are highest in July, averaging 4.3 m/s (15 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in Cotonou come in December, when the sky is typically 76% covered; August is the cloudiest month, at 87%.
Month by month Cotonou climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
32°C
25°C
34°C
11%
76%
2.8 m/s
7
28
1
February
32°C
27°C
35°C
20%
80%
3.3 m/s
1
17
0
March
32°C
28°C
35°C
29%
84%
3.8 m/s
0
16
0
April
32°C
27°C
35°C
35%
85%
3.5 m/s
1
14
0
May
31°C
27°C
34°C
42%
85%
2.9 m/s
2
21
0
June
29°C
25°C
32°C
45%
86%
3.3 m/s
4
43
0
July
28°C
25°C
30°C
27%
87%
4.3 m/s
16
57
0
August
28°C
25°C
29°C
22%
87%
4.2 m/s
23
59
1
September
28°C
25°C
31°C
43%
86%
3.7 m/s
10
52
0
October
29°C
25°C
33°C
46%
86%
2.8 m/s
3
38
0
November
31°C
26°C
35°C
33%
83%
2.6 m/s
1
17
0
December
32°C
25°C
35°C
10%
76%
2.5 m/s
2
23
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Cotonou weather by season
Year round, Cotonou has days of about 28°C at their warmest in August, its coolest month, and 32°C in February, its warmest; the coolest hours of the day run from 25°C to 28°C through the year, and the average temperature over the year is 28°C around the clock. Rain is most likely around October and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Cotonou weather in winterDecember to February
High 32°CLow 26°CRain 14%
Winter in Cotonou has typical daily highs of about 32°C and lows of about 26°C, with a 14% chance of rain on a given day.
Cotonou weather in springMarch to May
High 31°CLow 27°CRain 35%
Spring in Cotonou has typical daily highs of about 31°C and lows of about 27°C, with a 35% chance of rain on a given day.
Cotonou weather in summerJune to August
High 28°CLow 25°CRain 31%
Summer in Cotonou has typical daily highs of about 28°C and lows of about 25°C, with a 31% chance of rain on a given day.
Cotonou weather in autumnSeptember to November
High 30°CLow 25°CRain 41%
Autumn in Cotonou has typical daily highs of about 30°C and lows of about 25°C, with a 41% chance of rain on a given day.
When is the rainy season in Cotonou?
The rainy (wet) season in Cotonou runs from September to November, peaking in October with a 46% chance of rain on a given day. The dry season is December to February; December is the driest month, at 10%.
What time of year is Cotonou windiest?
Winds in Cotonou are highest in July, averaging 4.3 m/s (15 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in Cotonou year round?
The average temperature in Cotonou over the whole year is 28°C. February is the hottest month, with highs of about 32°C; August is the coldest, with lows of about 25°C.