May weather forecastMasa, Sierra Leone
May
Weather in May
The last month of the spring, May, is another tropical month in Masa, Sierra Leone, with an average temperature fluctuating between 31.2°C (88.2°F) and 26.1°C (79°F).Temperature
The arrival of May sees an average high-temperature of a still tropical 31.2°C (88.2°F), hardly diverging from April's 32.1°C (89.8°F). In May, Masa's temperature tends to fall to an average low of 26.1°C (79°F) during the night.Heat index
May's mean heat index is appraised at a blisteringly hot 40°C (104°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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 normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In Masa, the average relative humidity in May is 77%.Rainfall
In Masa, during May, the rain falls for 23.4 days and regularly aggregates up to 132mm (5.2") of precipitation. Throughout the year, there are 239 rainfall days, and 1820mm (71.65") of precipitation is accumulated.Daylight
In May, the average length of the day in Masa is 12h and 28min.On the first day of May, sunrise is at 06:31 and sunset at 18:55. On the last day of the month, sunrise is at 06:28 and sunset at 18:59 GMT.
Sunshine
In Masa, the average sunshine in May is 6.8h.UV index
January through June, September through 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 health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 7 during May leads to these advisories:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Masa, Sierra Leone
- Average high temperature in May: 31.2°C
The warmest month (with the highest average high temperature) is April (32.1°C).
The month with the lowest average high temperature is August (27.3°C).
- Average low temperature in May: 26.1°C
The month with the highest average low temperature is May (26.1°C).
The coldest month (with the lowest average low temperature) is January (23.8°C).
Average pressure in May
Masa, Sierra Leone
- Average pressure in May: 1011.6mbar
The month with the highest atmospheric pressure is July (1013.9mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).
Average wind speed in May
Masa, Sierra Leone
- Average wind speed in May: 9.8km/h
The windiest month (with the highest average wind speed) is August (13.1km/h).
The calmest month (with the lowest average wind speed) is November (6.6km/h).
Average humidity in May
Masa, Sierra Leone
- Average humidity in May: 77%
The month with the highest relative humidity is September (86%).
The months with the lowest relative humidity are January and February (72%).
Average rainfall in May
Masa, Sierra Leone
- Average rainfall in May: 132mm
The wettest month (with the highest rainfall) is August (389mm).
The driest month (with the least rainfall) is February (5mm).
Average rainfall days in May
Masa, Sierra Leone
- Average rainfall days in May: 23.4 days
The month with the highest number of rainy days is July (29.4 days).
The month with the least rainy days is February (4.5 days).
Average daylight in May /
Average sunshine in May
Masa, Sierra Leone
- Average daylight in May: 12h and 30min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in May: 6h and 48min
The month with the most sunshine is January (Average sunshine: 9h and 30min).
The month with the least sunshine is August (Average sunshine: 3h and 48min).
Average sunshine days in May
Masa, Sierra Leone
- Average sunshine days in May: 5.3 days
The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is June (1 days).
Average UV index in May
Masa, Sierra Leone
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in May
Masa, Sierra Leone
- Average cloud cover in May: 50
The month with the most cloud cover is August (Cloud cover 74).
The month with the least cloud cover is January (Cloud cover 18).
Average visibility in May
Masa, Sierra Leone
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).





