May weather forecast
Libreville, Gabon

Tarmac road beside sandy beaches leading into the Libreville city in Gabon
Tarmac road beside sandy beaches leading into the Libreville city in Gabon

Weather in May

May, the last month of the spring in Libreville, is also a moderately hot month, with an average temperature varying between 24.7°C (76.5°F) and 28.9°C (84°F).

Temperature

In May, the average high-temperature is practically the same as in April - a still moderately hot 28.9°C (84°F). In May, in Libreville, the average low-temperature is 24.7°C (76.5°F).

Heat index

The average heat index in May is calculated to be a torrid 36°C (96.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With 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 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, wind, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In May, the average relative humidity in Libreville is 85%.

Rainfall

In Libreville, it is raining for 25.8 days, with typically 156mm (6.14") of accumulated precipitation. Throughout the year, in Libreville, there are 274.1 rainfall days, and 1477mm (58.15") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Libreville is 27.6°C (81.7°F).
Note: 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.

Daylight

In Libreville, the average length of the day in May is 12h and 8min.
On the first day of May, sunrise is at 06:15 and sunset at 18:23. On the last day of the month, sunrise is at 06:15 and sunset at 18:24 WAT.

Sunshine

In May, the average sunshine in Libreville is 7.2h.

UV index

January through May, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in May in Libreville?

The average high-temperature, in May, in Libreville, Gabon, is 28.9°C (84°F), while the average low-temperature is 24.7°C (76.5°F). in May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 36°C (96.8°F).

What is the average humidity in May in Libreville?

In Libreville, Gabon, the average relative humidity in May is 85%.

How much does it rain in Libreville in May?

In Libreville, Gabon, in May, during 25.8 rainfall days, 156mm (6.14") of precipitation is typically accumulated.

What is the water temperature in May in Libreville?

In Libreville, in May, the average water temperature is 27.6°C (81.7°F). 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.

What is the average length of the day in May in Libreville?

The average day length in May in Libreville is 12h and 8min.

What time are sunrise and sunset in May in Libreville?

On the first day of May in Libreville, Gabon, sunrise is at 06:15 and sunset at 18:23. On the last day of the month, sunrise is at 06:15 and sunset at 18:24 WAT.

How long on average sun shines in May in Libreville?

In Libreville, Gabon, the average sunshine duration in May is 7.2h.

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

The months with the highest UV index in Libreville are January through May, November and December, with an average maximum UV index of 7.

What is the UV index reading in May in Libreville?

In May, the average daily maximum UV index in Libreville, Gabon, is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.

Average temperature in May
Libreville, Gabon

Average temperature in May - Libreville, Gabon
  • Average high temperature in May: 28.9°C

The warmest month (with the highest average high temperature) is March (30.1°C).
The month with the lowest average high temperature is July (26.5°C).

  • Average low temperature in May: 24.7°C

The month with the highest average low temperature is March (25.3°C).
The coldest month (with the lowest average low temperature) is July (22.5°C).

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Average pressure in May
Libreville, Gabon

Average pressure in May - Libreville, Gabon
  • Average pressure in May: 1011.3mbar

The month with the highest atmospheric pressure is July (1014mbar).
The months with the lowest atmospheric pressure are February and March (1010mbar).

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Average wind speed in May
Libreville, Gabon

Average wind speed in May - Libreville, Gabon
  • Average wind speed in May: 9.2km/h

The windiest month (with the highest average wind speed) is August (13.4km/h).
The calmest month (with the lowest average wind speed) is April (8.2km/h).

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Average humidity in May
Libreville, Gabon

Average humidity in May - Libreville, Gabon
  • Average humidity in May: 85%

The month with the highest relative humidity is November (86%).
The months with the lowest relative humidity are January, February, March and August (81%).

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Average rainfall in May
Libreville, Gabon

Average rainfall in May - Libreville, Gabon
  • Average rainfall in May: 156mm

The wettest month (with the highest rainfall) is November (226mm).
The driest month (with the least rainfall) is July (9mm).

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Average rainfall days in May
Libreville, Gabon

Average rainfall days in May - Libreville, Gabon
  • Average rainfall days in May: 25.8 days

The month with the highest number of rainy days is January (30 days).
The month with the least rainy days is July (8.3 days).

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Average sea temperature in May
Libreville, Gabon

Average sea temperature in May - Libreville, Gabon
  • Average sea temperature in May: 27.6°C

The best month for swimming (with the highest average sea temperature) is March (29.3°C).
The coldest month (with the lowest average sea temperature) is July (24.7°C).

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Average daylight in May /
Average sunshine in May
Libreville, Gabon

Average daylight in May / Average sunshine in May - Libreville, Gabon
  • Average daylight in May: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is December (Average daylight: 12h and 6min).

  • Average sunshine in May: 7h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The month with the least sunshine is September (Average sunshine: 5h and 6min).

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Average sunshine days in May
Libreville, Gabon

Average sunshine days in May - Libreville, Gabon
  • Average sunshine days in May: 4.4 days

The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is January (0.6 days).

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Average UV index in May
Libreville, Gabon

Average UV index in May - Libreville, Gabon
  • Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, November and December (UV index 7).
The months with the lowest UV index are June, July, August, September and October (UV index 6).

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Average cloud cover in May
Libreville, Gabon

Average cloud cover in May - Libreville, Gabon
  • Average cloud cover in May: 54

The month with the most cloud cover is September (Cloud cover 74).
The month with the least cloud cover is February (Cloud cover 42).

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Average visibility in May
Libreville, Gabon

Average visibility in May - Libreville, Gabon
  • Average visibility in May: 9km

The months with the highest visibility are January, February, March, June, July, August and September (10km).
The months with the lowest visibility are April, May, October, November and December (9km).

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