Weather in Cotonou in May 2025
Average weather
Average temperature in Cotonou in May
The expected average maximum temperature in May is +30°C with a maximum of +32°C and a minimum of +26°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +30°C to +30°C.
Is Cotonou warm or cold in May?
Cotonou is typically warm in May.
Maximum temperatures go down compared to the previous month from +30°C to +29°C. The minimum temperature also goes down from +27°C to +26°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how May is compared to other months in Cotonou:
Climate in Cotonou in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +30°C | +29°C | +28°C | ||||
| Min. temperature | ||||||
| +24°C | +23°C | +23°C | ||||
| Max. temperature | ||||||
| +32°C | +32°C | +31°C | ||||
| Rainfall | ||||||
| 74 mm | 164 mm | 263 mm | ||||
| Wind | ||||||
| 4 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 84% | 83% | 85% | ||||
| Air pressure | ||||||
| 1008 HPa | 1010 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 5 | 2 | 1 | ||||
| Rainy days | ||||||
| 18 | 21 | 24 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting colder in May. From +30°C in the day, the average maximum temperature lowers to +29°C. Prepare for more rain. Average rainfall goes from 74 mm to 164 mm. It feels drier, as humidity decreases from 84% to 83%. Winds are calmer in comparison to April, going down from 4 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Cotonou is gradually increasing during May, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Cotonou?
Climate Change over Years
The climate in Cotonou in May has not changed much over the last 43 years.
The average temperature was the lowest in 1983 (+28°C) and the highest in 2019 (+29°C). The driest year was 1998 with only 665 mm of rainfall, and the wettest year was 1988 with 1691 mm.
FAQ
Is May a good time to visit Cotonou?
Can you sunbathe in Cotonou in May?
Is Cotonou rainy in May?
Is it sunny in Cotonou in May?
Monthly weather in Cotonou
Source of the data
For this page, we’ve looked at the typical weather in Cotonou, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.