April weather forecastBiro, Benin
April
Weather in April
April features a more pronounced difference from the dry season, as both temperature and humidity levels continue to rise. The increase in cloud% from the previous month indicates that the sky is less clear and the sunshine less bright. Rainfall reaches an average volume of 60mm (2.36") for the month, combining with the high humidity to create a typically wet month. Winds become stronger during this period, offering some respite from the humid condition. Even though the days are generally cloudy, the UV index remains high, requiring continued use of sun protection.Temperature
The arrival of April in Biro marks a slight shift to an average high-temperature of a still torrid 37.8°C (100°F) from March's 39.2°C (102.6°F). Contrary to the day's heat, an average low-temperature of 24.8°C (76.6°F) is recorded during the nights in April in Biro, Benin.Heat index
The heat index value during April is estimated at a life-threatening hot 50°C (122°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In Biro, the average relative humidity in April is 54%.Rainfall
In Biro, during April, the rain falls for 10.8 days and regularly aggregates up to 60mm (2.36") of precipitation. In Biro, during the entire year, the rain falls for 139.7 days and collects up to 607mm (23.9") of precipitation.Daylight
The average length of the day in April in Biro is 12h and 21min.On the first day of April, sunrise is at 06:45 and sunset at 18:58. On the last day of the month, sunrise is at 06:31 and sunset at 18:59 WAT.
Sunshine
In Biro, the average sunshine in April is 9.6h.UV index
March and April, with an average maximum UV index of 8, are months with the highest UV index. A UV Index of 8 to 10 symbolizes a very high health risk from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 8 in April transforms into this advice:
Stay protected; otherwise, skin and eyes can suffer rapid damage. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Biro, Benin
- Average high temperature in April: 37.8°C
The warmest month (with the highest average high temperature) is March (39.2°C).
The month with the lowest average high temperature is August (28.4°C).
- Average low temperature in April: 24.8°C
The month with the highest average low temperature is April (24.8°C).
The coldest month (with the lowest average low temperature) is January (18.7°C).
Average pressure in April
Biro, Benin
- Average pressure in April: 1008.8mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is March (1008.7mbar).
Average wind speed in April
Biro, Benin
- Average wind speed in April: 9.3km/h
The windiest month (with the highest average wind speed) is April (9.3km/h).
The calmest month (with the lowest average wind speed) is November (5.9km/h).
Average humidity in April
Biro, Benin
- Average humidity in April: 54%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is January (22%).
Average rainfall in April
Biro, Benin
- Average rainfall in April: 60mm
The wettest month (with the highest rainfall) is August (140mm).
The driest month (with the least rainfall) is December (0mm).
Average rainfall days in April
Biro, Benin
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is August (25.1 days).
The month with the least rainy days is December (0.3 days).
Average daylight in April /
Average sunshine in April
Biro, Benin
- Average daylight in April: 12h and 24min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in April: 9h and 36min
The months with the most sunshine are January and December (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in April
Biro, Benin
- Average sunshine days in April: 17 days
The month with the most sunshine days is December (30.5 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in April
Biro, Benin
- Average UV index in April: 8
The months with the highest UV index are March and April (UV index 8).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in April
Biro, Benin
- Average cloud cover in April: 21
The month with the most cloud cover is August (Cloud cover 63).
The month with the least cloud cover is December (Cloud cover 3).
Average visibility in April
Biro, Benin
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are August and September (7km).








