May weather forecast
Ouagadougou, Burkina Faso

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A hole of water reflecting the rocks and blue sky in the sunny city of Ouagadougou, Burkina Faso
A hole of water reflecting the rocks and blue sky in the sunny city of Ouagadougou, Burkina Faso

Weather in May

The onset of the rainy season defines May, with a significant upturn in humidity and a remarkable increase in rainfall reaching 71mm (2.8"). Temperatures remain steady with April, but the nights become warmer. Concurrently, daylight time peaks, matching the longest days of the year. Even with the increased clouds and rain, sunshine hours remain surprisingly steady. The city's weather, at this point, has completely transitioned from the dry season.

Temperature

The commencement of May in Ouagadougou brings an average high-temperature of a still fiery hot 37.3°C (99.1°F), marking an inconsequential divergence from April. Nighttime temperatures consistently average a moderately hot 25.5°C (77.9°F) during May.

Heat index

The average heat index in May is appraised at a life-threatening hot 48°C (118.4°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
Factoring in the heat index, values are geared towards shaded areas with light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In May, the average relative humidity is 52.5%.

Rainfall

In Ouagadougou, in May, it is raining for 3.3 days, with typically 71mm (2.8") of accumulated precipitation. In Ouagadougou, during the entire year, the rain falls for 35.2 days and collects up to 788mm (31.02") of precipitation.

Daylight

In May, the average length of the day is 12h and 42min.
On the first day of the month, sunrise is at 05:45 and sunset at 18:20. On the last day of May, sunrise is at 05:39 and sunset at 18:27 GMT.

Sunshine

January through March, May, October and November, with an average of 9h of sunshine, are months with the most sunshine.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 12 during May leads to these instructions:
Take every essential safety procedure. Individuals with fair skin could sustain burns in less than 5 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.

Frequently asked questions

How hot does it get in May?

The high-temperature, in May, in Ouagadougou, is 37.3°C (99.1°F), while the low-temperature averages to 25.5°C (77.9°F). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 48°C (118.4°F).

What is the average humidity in May?

In Ouagadougou, Burkina Faso, the average relative humidity in May is 52.5%.

How much does it rain in May?

In Ouagadougou, in May, during 3.3 rainfall days, 71mm (2.8") of precipitation is typically accumulated.

How many hours of daylight does Ouagadougou have in May?

The average day length in May is 12h and 42min.

When is the sunrise / sunset in May?

On the first day of May in Ouagadougou, sunrise is at 05:45 and sunset at 18:20. On the last day of the month, sunrise is at 05:39 and sunset at 18:27 GMT.

What are the months with the most sunshine?

January through March, May, October and November, with an average of 9h of sunshine, are months with the most sunshine.

How many hours of sunshine does Ouagadougou have in May?

The average sunshine duration in May is 9h.

When is the highest UV index?

The months with the highest UV index are February through September, with an average maximum UV index of 12.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 12. A UV Index of 11, and more, symbolizes an ultimate hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in May
Ouagadougou, Burkina Faso

Average temperature in May - Ouagadougou, Burkina Faso
  • Average high temperature in May: 37.3°C

The warmest month (with the highest average high temperature) is April (39.1°C).
The month with the lowest average high temperature is August (30.9°C).

  • Average low temperature in May: 25.5°C

The month with the highest average low temperature is April (25.7°C).
The coldest month (with the lowest average low temperature) is January (16.1°C).

Average humidity in May
Ouagadougou, Burkina Faso

Average humidity in May - Ouagadougou, Burkina Faso
  • Average humidity in May: 52.5%

The month with the highest relative humidity is August (74%).
The month with the lowest relative humidity is February (28.5%).

Average rainfall in May
Ouagadougou, Burkina Faso

Average rainfall in May - Ouagadougou, Burkina Faso
  • Average rainfall in May: 71mm

The wettest month (with the highest rainfall) is August (227mm).
The driest month (with the least rainfall) is January (0mm).

Average rainfall days in May
Ouagadougou, Burkina Faso

Average rainfall days in May - Ouagadougou, Burkina Faso
  • Average rainfall days in May: 3.3 days

The month with the highest number of rainy days is August (10.9 days).
The months with the least rainy days are January, November and December (0 days).

Average daylight in May /
Average sunshine in May
Ouagadougou, Burkina Faso

Average daylight in May / Average sunshine in May - Ouagadougou, Burkina Faso
  • Average daylight in May: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in May: 9h

The months with the most sunshine are January, February, March, May, October and November (Average sunshine: 9h).
The month with the least sunshine is August (Average sunshine: 6h).

Average UV index in May
Ouagadougou, Burkina Faso

Average UV index in May - Ouagadougou, Burkina Faso
  • Average UV index in May: 12

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

Ouagadougou, Burkina Faso

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