May weather forecast
Yonibana, Sierra Leone

In contrast to the preceding months, May in Yonibana, Sierra Leone sees weather that could be termed as excessively rainy. More significant changes become apparent in May, marking the middle of the rainy season. There's a noticeable drop in the average high temperature down to 34.3°C (93.7°F), coupled with an uptick in humidity up to 79%. May is the departure point from the consistent temperature and sun-filled days of the previous months, leading into a cooler, wetter period. It's a month of transitioning extremes, both in terms of temperature and precipitation.

Temperature

The transition to May results in a modest reduction in average high-temperature, moving from a fiery hot 37.5°C (99.5°F) in April to a hot 34.3°C (93.7°F). Throughout May, the temperature tends to fall to a consistent average low of 23.8°C (74.8°F).

Heat index

The heat index value during May is calculated to be a burning hot 53°C (127.4°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In May, the average relative humidity in Yonibana is 79%.

Rainfall

In May, the rain falls for 24.9 days. Throughout May, 112mm (4.41") of precipitation is accumulated. Throughout the year, in Yonibana, there are 228.1 rainfall days, and 1418mm (55.83") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 31min.
On the first day of the month, sunrise is at 06:32 and sunset at 18:58. On the last day of May, in Yonibana, Sierra Leone, sunrise is at 06:29 and sunset at 19:04 GMT.

Sunshine

In Yonibana, the average sunshine in May is 7.5h.

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 estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 7 in May transforms into this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.