Cotonou weather by month

Check out Cotonou weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & daylight
UV levels & humidity

Temperature in Cotonou (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	31	32	32	32	31	29	28	28	29	30	31	31
Min temperature (night-time)	23	25	25	25	24	23	23	23	23	24	23	24
Heat & Humidity	H	VH	VH	VH	H	H	M	M	M	H	H	H
Sea temperature	27	28	28	29	29	28	25	25	26	27	28	28

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Cotonou

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	7	7	7	7	7	5	4	4	5	7	8	7
Daily hours of daylight	12	12	12	12	12	12	12	12	12	12	12	12
UV Index (Maximum)	11	11	11	11	11	11	11	11	11	11	11	10

Rainfall in Cotonou

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	1	3	6	10	14	18	12	9	11	11	5	2
Average monthly rainfall (mm)	14	40	83	135	197	321	137	63	112	133	49	20

More about Cotonou

Cotonou by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Benin (Cotonou) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Cotonou?

Cotonou has a hot tropical climate with a winter dry season.

Cotonou weather in January

Expect daytime maximum temperatures of 31°C in Cotonou, Benin in January and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average.

31
31°C max day temperature
7
7 hours of sunshine per day
1
1 day with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
14
14 mm of monthly rainfall
11
11 (Extreme) UV index
27
27°C sea temperature

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Cotonou weather in February

Expect daytime maximum temperatures of 32°C in Cotonou, Benin in February and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 40 mm of rainfall in the month.

32
32°C max day temperature
7
7 hours of sunshine per day
3
3 days with some rainfall
25
25°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
40
40 mm of monthly rainfall
11
11+ (Extreme) UV index
28
28°C sea temperature

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Cotonou weather in March

Expect daytime maximum temperatures of 32°C in Cotonou, Benin in March and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 83 mm of rainfall in the month.

32
32°C max day temperature
7
7 hours of sunshine per day
6
6 days with some rainfall
25
25°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
83
83 mm of monthly rainfall
11
11+ (Extreme) UV index
28
28°C sea temperature

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Cotonou weather in April

Expect daytime maximum temperatures of 32°C in Cotonou, Benin in April and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 135 mm of rainfall in the month.

32
32°C max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
25
25°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
135
135 mm of monthly rainfall
11
11+ (Extreme) UV index
29
29°C sea temperature

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Cotonou weather in May

Expect daytime maximum temperatures of 31°C in Cotonou, Benin in May and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 197 mm of rainfall in the month.

31
31°C max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
197
197 mm of monthly rainfall
11
11+ (Extreme) UV index
29
29°C sea temperature

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Cotonou weather in June

Expect daytime maximum temperatures of 29°C in Cotonou, Benin in June and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 321 mm of rainfall in the month.

29
29°C max day temperature
5
5 hours of sunshine per day
18
18 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
321
321 mm of monthly rainfall
11
11 (Extreme) UV index
28
28°C sea temperature

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Cotonou weather in July

Expect daytime maximum temperatures of 28°C in Cotonou, Benin in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 137 mm of rainfall in the month.

28
28°C max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
137
137 mm of monthly rainfall
11
11 (Extreme) UV index
25
25°C sea temperature

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Cotonou weather in August

Expect daytime maximum temperatures of 28°C in Cotonou, Benin in August based on long-term weather averages. There are 4 hours of sunshine per day on average with typically 63 mm of rainfall in the month.

28
28°C max day temperature
4
4 hours of sunshine per day
9
9 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
63
63 mm of monthly rainfall
11
11+ (Extreme) UV index
25
25°C sea temperature

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Cotonou weather in September

Expect daytime maximum temperatures of 29°C in Cotonou, Benin in September and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 112 mm of rainfall in the month.

29
29°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
112
112 mm of monthly rainfall
11
11+ (Extreme) UV index
26
26°C sea temperature

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Cotonou weather in October

Expect daytime maximum temperatures of 30°C in Cotonou, Benin in October and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 133 mm of rainfall in the month.

30
30°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
133
133 mm of monthly rainfall
11
11+ (Extreme) UV index
27
27°C sea temperature

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Cotonou weather in November

Expect daytime maximum temperatures of 31°C in Cotonou, Benin in November and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 49 mm of rainfall in the month.

31
31°C max day temperature
8
8 hours of sunshine per day
5
5 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
49
49 mm of monthly rainfall
11
11 (Extreme) UV index
28
28°C sea temperature

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Cotonou weather in December

Expect daytime maximum temperatures of 31°C in Cotonou, Benin in December and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average.

31
31°C max day temperature
7
7 hours of sunshine per day
2
2 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
20
20 mm of monthly rainfall
10
10 (Very High) UV index
28
28°C sea temperature

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