December weather forecastMandiana, Guinea
December
Weather in December
Completing the year, December in Mandiana experiences dry weather conditions with virtually no rainfall. Temperatures remain high, with maximum afternoon temperatures reaching around 33.9°C (93°F), offering warm days. Cloud coverage reduces significantly, ensuring clear, sunny skies, providing up to 9.9 hours of sunshine each day. A slight increase in wind speeds to 6.6km/h (4.1mph) can be observed, but without any major shifts in the weather pattern. The dry conditions foster pleasant outdoor activities, concluding the year with amicable climate in Mandiana.Temperature
The arrival of December marks a slight shift to an average high-temperature of a still tropical 33.9°C (93°F) from November's 33.5°C (92.3°F). Mandiana experiences a substantial divergence from daytime highs in December, with average lows hovering around a comfortable 18.2°C (64.8°F).Humidity
In Mandiana, the average relative humidity in December is 25%.Rainfall
December is the only month when rain does not fall.Daylight
With an average of 11h and 30min of daylight, December has the shortest days of the year.On the first day of December in Mandiana, sunrise is at 06:37 and sunset at 18:10. On the last day of the month, sunrise is at 06:52 and sunset at 18:23 GMT.
Sunshine
The months with the most sunshine are February and December, with an average of 9.9h of sunshine.UV index
The months with the lowest UV index in Mandiana are July through September and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the UV index of 6 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mandiana, Guinea
- Average high temperature in December: 33.9°C
The warmest month (with the highest average high temperature) is March (39.4°C).
The month with the lowest average high temperature is August (28.3°C).
- Average low temperature in December: 18.2°C
The month with the highest average low temperature is April (25.3°C).
The coldest month (with the lowest average low temperature) is January (18.1°C).
Average pressure in December
Mandiana, Guinea
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is July (1013.4mbar).
The month with the lowest atmospheric pressure is April (1009.4mbar).
Average wind speed in December
Mandiana, Guinea
- Average wind speed in December: 6.6km/h
The windiest month (with the highest average wind speed) is May (8.2km/h).
The calmest months (with the lowest average wind speed) are October and November (4.9km/h).
Average humidity in December
Mandiana, Guinea
- Average humidity in December: 25%
The month with the highest relative humidity is August (89%).
The month with the lowest relative humidity is January (19%).
Average rainfall in December
Mandiana, Guinea
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is August (213mm).
The driest month (with the least rainfall) is December (0mm).
Average rainfall days in December
Mandiana, Guinea
- Average rainfall days in December: 0 days
The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is December (0 days).
Average daylight in December /
Average sunshine in December
Mandiana, Guinea
- Average daylight in December: 11h and 30min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 9h and 54min
The months with the most sunshine are February and December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 0min).
Average sunshine days in December
Mandiana, Guinea
- Average sunshine days in December: 30.9 days
The month with the most sunshine days is December (30.9 days).
The month with the least sunshine days is July (1.9 days).
Average UV index in December
Mandiana, Guinea
- Average UV index in December: 6
The months with the highest UV index are March and April (UV index 8).
The months with the lowest UV index are July, August, September and December (UV index 6).
Average cloud cover in December
Mandiana, Guinea
- Average cloud cover in December: 6
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is December (Cloud cover 6).
Average visibility in December
Mandiana, Guinea
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are August and September (7km).





