April weather forecast and climate
Cotonou, Benin

April, the same as March, in Cotonou, Benin, is a hot spring month, with temperature in the range of an average high of 31.6°C (88.9°F) and an average low of 25.6°C (78.1°F).

Temperature

In April, the average high-temperature is practically the same as in March - a still hot 31.6°C (88.9°F). The average low-temperature, in Cotonou, is 25.6°C (78.1°F).

Heat index

The average heat index is calculated to an extremely hot 41.6°C (106.9°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like pregnancy, clothing, differences in body mass, height, and shape, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

With an average relative humidity of 76.5%, April is the least humid month.

Rainfall

In April, the rain falls for 7 days. Throughout April, 137mm (5.39") of precipitation is accumulated. In Cotonou, during the entire year, the rain falls for 75 days and collects up to 1308.3mm (51.51") of precipitation.

Sea temperature

March through May and November, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In April, the average length of the day in Cotonou is 12.3h.

Sunshine

In Cotonou, the average sunshine is 7.3h.

UV index

February through May, August through October, with an average maximum UV index of 12, are months with the highest UV index in Cotonou. A UV Index of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: In April, the average maximum UV index of 12 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in April in Cotonou?

In Cotonou, Benin, in April, the average high-temperature is 31.6°C (88.9°F), and the average low-temperature is 25.6°C (78.1°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that factores the actual air temperature with the relative humidity, in April is appraised at 41.6°C (106.9°F).

What is the least humid month in Cotonou?

The least humid month in Cotonou, Benin, is April, with an average relative humidity of 76.5%.

What is the average humidity in April in Cotonou?

The average relative humidity in April in Cotonou, Benin, is 76.5%.

How many days does it rain in April in Cotonou?

In Cotonou, in April, it is raining for 7 days, with typically 137mm (5.39") of accumulated precipitation.

What are the months with the warmest sea water in Cotonou?

Months with the warmest seawater in Cotonou are March through May and November, with an average sea temperature of 29°C (84.2°F).

What is the water temperature in April in Cotonou?

In Cotonou, Benin, the average seawater temperature in April is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in April in Cotonou?

The average length of the day in April in Cotonou, Benin, is 12.3h.

How many hours of sunshine does Cotonou have in April?

The average sunshine in April in Cotonou, Benin, is 7.3h.

What are the months with the highest UV index in Cotonou?

Months with the highest UV index are February through May, August through October, with an average maximum UV index of 12.

How high is the UV index in April in Cotonou?

In Cotonou, the average daily maximum UV index in April is 12. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in April - Cotonou, Benin
  • Average high temperature in April: 31.6°C

The warmest month (with the highest average high temperature) is March (31.9°C).
The month with the lowest average high temperature is August (27.8°C).

  • Average low temperature in April: 25.6°C

The month with the highest average low temperature is March (25.9°C).
The coldest month (with the lowest average low temperature) is August (23.4°C).

Average humidity in April - Cotonou, Benin
  • Average humidity in April: 76.5%

The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is April (76.5%).

Average rainfall in April - Cotonou, Benin
  • Average rainfall in April: 137mm

The wettest month (with the highest rainfall) is June (356mm).
The driest month (with the least rainfall) is January (9.2mm).

Average rainfall days in April - Cotonou, Benin
  • Average rainfall days in April: 7 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (1 days).

Average sea temperature in April - Cotonou, Benin
  • Average sea temperature in April: 29°C

The best months for swimming (with the highest average sea temperature) are March, April, May and November (29°C).
The coldest month (with the lowest average sea temperature) is August (25°C).

Average daylight in April / Average sunshine in April - Cotonou, Benin
  • Average daylight in April: 12.3h

Months with the longest days are June and July (Average daylight: 12.5h).
Months with the shortest days are January, November and December (Average daylight: 11.8h).

  • Average sunshine in April: 7.3h

The month with the most sunshine is November (Average sunshine: 8.1h).
The month with the least sunshine is July (Average sunshine: 4.4h).

Average UV index in April - Cotonou, Benin
  • Average UV index in April: 12

Months with the highest UV index are February, March, April, May, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).