May weather forecastWaterloo, Sierra Leone

Weather in May

Waterloo weather takes a turn in May, displaying a dramatic increase in rainfall levels, soaring up to 66mm (2.6"), creating a remarkably wet environment. Encouragingly, the increased moisture doesn't much affect the daylight hours, allowing ample time for outdoors before sundown. But, the generally high relative humidity creates a distinctively humid atmosphere. The wind speed remains consistent without causing any major disruption. As May ends, one can anticipate a further escalation in rainfalls in the following months.

Temperature

The arrival of May in Waterloo brings an average high-temperature of a still hot 30.7°C (87.3°F), closely following the temperature pattern of April. May nights anticipate an average temperature of 26.2°C (79.2°F), a modest decline from the daytime.

Heat index

The heat index value for May is calculated to be a torrid 39°C (102.2°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Waterloo, the average relative humidity in May is 78%.

Rainfall

In Waterloo, in May, during 19.6 rainfall days, 66mm (2.6") of precipitation is typically accumulated. Throughout the year, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 31min.
On the first day of the month, sunrise is at 06:36 and sunset at 19:02. On the last day of May, sunrise is at 06:32 and sunset at 19:07 GMT.

Sunshine

In Waterloo, the average sunshine in May is 8.3h.

UV index

The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.