December weather forecastYao, Japan
December
Weather in December
The first month of the winter, December, is also a frosty month in Yao, Japan, with temperature in the range of an average high of 9.3°C (48.7°F) and an average low of 3.7°C (38.7°F).Temperature
Yao observes a minor decrease in the average high-temperature with the arrival of December, falling from November's refreshing 15.4°C (59.7°F) to a chilly 9.3°C (48.7°F). Throughout December, Yao witnesses a consistent average low-temperature of 3.7°C (38.7°F).Humidity
In December, the average relative humidity is 76%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 38mm (1.5") of precipitation is accumulated. In Yao, during the entire year, the rain falls for 163.2 days and collects up to 920mm (36.22") of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1 snowfall days, it receives 6mm (0.24") of snow. Throughout the year, there are 6.8 snowfall days, and 52mm (2.05") of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:46 and sunset at 16:46. On the last day of the month, sunrise is at 07:04 and sunset at 16:56 JST.
Sunshine
The average sunshine in December is 5.2h.UV index
The months with the lowest UV index in Yao are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during December leads to these advisories:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yao, Japan
- Average high temperature in December: 9.3°C
The warmest month (with the highest average high temperature) is August (31.4°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in December: 3.7°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in December
Yao, Japan
- Average pressure in December: 1019.3mbar
The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in December
Yao, Japan
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is June (7.1km/h).
Average humidity in December
Yao, Japan
- Average humidity in December: 76%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Yao, Japan
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is July (160mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in December
Yao, Japan
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in December
Yao, Japan
- Average snowfall in December: 6mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Yao, Japan
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Yao, Japan
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days in December
Yao, Japan
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Yao, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Yao, Japan
- Average cloud cover in December: 42
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Yao, Japan
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
