December weather forecastOrio, Japan
December
Weather in December
The first month of the winter, December, is still a cool month in Orio, Japan, with temperature in the range of an average low of 7.2°C (45°F) and an average high of 10.6°C (51.1°F).Temperature
In December, the average high-temperature goes from a comfortable 16.4°C (61.5°F) in November to a cool 10.6°C (51.1°F). The nights of December in Orio cool down to an average low of 7.2°C (45°F), subtly lower than daytime highs.Humidity
In Orio, the average relative humidity in December is 70%.Rainfall
In December, the rain falls for 18.9 days. Throughout December, 73mm (2.87") of precipitation is accumulated. In Orio, during the entire year, the rain falls for 188 days and collects up to 1127mm (44.37") of precipitation.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 1.1 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Orio, there are 7.6 snowfall days, and 28mm (1.1") of snow is accumulated.Daylight
The month with the shortest days in Orio is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 07:04 and sunset at 17:08. On the last day of December, sunrise is at 07:21 and sunset at 17:18 JST.
Sunshine
The average sunshine in December is 4.4h.UV index
The months with the lowest UV index in Orio, Japan, 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 unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
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. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Orio, Japan
- Average high temperature in December: 10.6°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (8.6°C).
- Average low temperature in December: 7.2°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (5°C).
Average pressure in December
Orio, Japan
- Average pressure in December: 1021.4mbar
The month with the highest atmospheric pressure is January (1021.9mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in December
Orio, Japan
- Average wind speed in December: 17.2km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest month (with the lowest average wind speed) is June (10.7km/h).
Average humidity in December
Orio, Japan
- Average humidity in December: 70%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January and March (69%).
Average rainfall in December
Orio, Japan
- Average rainfall in December: 73mm
The wettest month (with the highest rainfall) is July (215mm).
The driest month (with the least rainfall) is November (56mm).
Average rainfall days in December
Orio, Japan
- Average rainfall days in December: 18.9 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is May (11.4 days).
Average snowfall in December
Orio, Japan
- Average snowfall in December: 5mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Orio, Japan
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is January (4.3 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
Orio, 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: 4h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Orio, Japan
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in December
Orio, 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
Orio, Japan
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Orio, Japan
- Average visibility in December: 10km
The months with the highest visibility are March, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, April, May, June and July (9km).





