December weather forecastMayaia, Sierra Leone
December
Weather in December
December, the first month of the winter in Mayaia, is still a hot month, with an average temperature ranging between max 31°C (87.8°F) and min 24.5°C (76.1°F).Temperature
December welcomes an average high-temperature of a still tropical 31°C (87.8°F), not much different from the preceding month. In the month of December, Mayaia records a consistent average low-temperature of 24.5°C (76.1°F).Heat index
The heat index value during December is calculated to be a torrid 37°C (98.6°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Always consider that heat index estimations are for light winds and places in the shade. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The average relative humidity in December in Mayaia, Sierra Leone, is 69%.Rainfall
In Mayaia, in December, it is raining for 4 days, with typically 7mm (0.28") of accumulated precipitation. In Mayaia, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 06:52 and sunset at 18:31. On the last day of December, sunrise is at 07:07 and sunset at 18:45 GMT.
Sunshine
In December, the average sunshine in Mayaia is 9.7h.UV index
The months with the highest UV index in Mayaia are January through June, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mayaia, Sierra Leone
- Average high temperature in December: 31°C
The warmest month (with the highest average high temperature) is January (31.4°C).
The month with the lowest average high temperature is August (27.3°C).
- Average low temperature in December: 24.5°C
The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).
Average pressure in December
Mayaia, Sierra Leone
- Average pressure in December: 1011.1mbar
The month with the highest atmospheric pressure is July (1013.8mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).
Average wind speed in December
Mayaia, Sierra Leone
- Average wind speed in December: 7.6km/h
The windiest month (with the highest average wind speed) is August (12km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).
Average humidity in December
Mayaia, Sierra Leone
- Average humidity in December: 69%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).
Average rainfall in December
Mayaia, Sierra Leone
- Average rainfall in December: 7mm
The wettest month (with the highest rainfall) is August (391mm).
The driest month (with the least rainfall) is February (1mm).
Average rainfall days in December
Mayaia, Sierra Leone
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (0.8 days).
Average daylight in December /
Average sunshine in December
Mayaia, Sierra Leone
- Average daylight in December: 11h and 36min
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 36min).
- Average sunshine in December: 9h and 42min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).
Average sunshine days in December
Mayaia, Sierra Leone
- Average sunshine days in December: 25.5 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is August (0.5 days).
Average UV index in December
Mayaia, Sierra Leone
- Average UV index in December: 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 December
Mayaia, Sierra Leone
- Average cloud cover in December: 12
The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is February (Cloud cover 11).
Average visibility in December
Mayaia, Sierra Leone
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).





