May weather forecast
Lumley, Sierra Leone

May, the last month of the spring in Lumley, is another tropical month, with an average temperature varying between 26.2°C (79.2°F) and 30.7°C (87.3°F).

Temperature

Lumley sees the arrival of May with an average high-temperature of a still tropical 30.7°C (87.3°F), indicating a subtle variation from April. Lumley's May nights experience a subtle temperature dip to an average of 26.2°C (79.2°F).

Heat index

During May, the heat index is appraised at a very hot 39°C (102.2°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in May is 78%.

Rainfall

In May, the rain falls for 19.6 days. Throughout May, 66mm (2.6") of precipitation is accumulated. Throughout the year, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

In Lumley, the average length of the day in May is 12h and 31min.
On the first day of the month, sunrise is at 06:37 and sunset at 19:03. On the last day of May, sunrise is at 06:33 and sunset at 19:08 GMT.

Sunshine

In May, the average sunshine in Lumley 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 risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 7 in May leads to these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.