December weather forecastYao, Chad
December
Weather in December
December culminates the dry season in Yao with no rainfall and minimal humidity, setting the stage for the approaching New Year. Yao witnesses temperatures ranging from 19.5°C (67.1°F) to 34.3°C (93.7°F), generating an agreeable climate for holiday activities. During this month, the atmospheric pressure peaks at its highest for the year, creating stable weather conditions. Wind speed continues to rise, attaining its yearly maximum, a subtle nod to the changing seasons. The sun illumination duration descents to its annual low, thus marking the gradual transition from the dry to the wet season.Temperature
The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a very hot 37.6°C (99.7°F) to a tropical 34.3°C (93.7°F). Despite soaring daytime temperatures, Yao registers a consistent average low-temperature of 19.5°C (67.1°F) in December.Humidity
In December, the average relative humidity is 15%.Rainfall
January through March, November and December are months without rainfall.Daylight
December has the shortest days of the year, with an average of 11h and 24min of daylight.On the first day of the month, sunrise is at 05:56 and sunset at 17:21. On the last day of December, sunrise is at 06:11 and sunset at 17:34 WAT.
Sunshine
In December, the average sunshine is 8.1h.UV index
January, August, November and December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: During December, 7 as the daily maximum UV index converts into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yao, Chad
- Average high temperature in December: 34.3°C
The warmest month (with the highest average high temperature) is April (43.1°C).
The month with the lowest average high temperature is August (32.6°C).
- Average low temperature in December: 19.5°C
The month with the highest average low temperature is June (30.5°C).
The coldest month (with the lowest average low temperature) is January (18.3°C).
Average pressure in December
Yao, Chad
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is April (1005.8mbar).
Average wind speed in December
Yao, Chad
- Average wind speed in December: 14.4km/h
The windiest month (with the highest average wind speed) is February (14.6km/h).
The calmest month (with the lowest average wind speed) is October (9.7km/h).
Average humidity in December
Yao, Chad
- Average humidity in December: 15%
The month with the highest relative humidity is August (69%).
The month with the lowest relative humidity is March (10%).
Average rainfall in December
Yao, Chad
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is August (131mm).
The driest months (with the least rainfall) are January, February, March, November and December (0mm).
Average rainfall days in December
Yao, Chad
- Average rainfall days in December: 0 days
The month with the highest number of rainy days is August (23.1 days).
The months with the least rainy days are January, February, November and December (0 days).
Average daylight in December /
Average sunshine in December
Yao, Chad
- Average daylight in December: 11h and 24min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in December: 8h and 6min
The month with the most sunshine is April (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 42min).
Average sunshine days in December
Yao, Chad
- Average sunshine days in December: 31 days
The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (6 days).
Average UV index in December
Yao, Chad
- Average UV index in December: 7
The months with the highest UV index are April and May (UV index 9).
The months with the lowest UV index are January, August, November and December (UV index 7).
Average cloud cover in December
Yao, Chad
- Average cloud cover in December: 1
The month with the most cloud cover is August (Cloud cover 40).
The months with the least cloud cover are January and December (Cloud cover 1).
Average visibility in December
Yao, Chad
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).





