December weather forecastOnohamacho, Japan
December
Weather in December
December, the first month of the winter in Onohamacho, is still a cool month, with an average temperature varying between 10.1°C (50.2°F) and 5.5°C (41.9°F).Temperature
In December, the average high-temperature decreases from a refreshing 15.9°C (60.6°F) in November to a cool 10.1°C (50.2°F). In December, Onohamacho temperatures settle at a low of 5.5°C (41.9°F) during the nights, reflecting a minor change from daytime highs.Humidity
In Onohamacho, the average relative humidity in December is 73%.Rainfall
In December, in Onohamacho, Japan, the rain falls for 15.6 days. Throughout December, 43mm (1.69") of precipitation is accumulated. Throughout the year, in Onohamacho, there are 176.9 rainfall days, and 791mm (31.14") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Onohamacho. December is the first month it typically snows in Onohamacho. Throughout December, in the average 3 snowfall days, it receives 10mm (0.39") of snow. Throughout the year, there are 15.6 snowfall days, and 84mm (3.31") of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Onohamacho.On the first day of the month, sunrise is at 06:48 and sunset at 16:48. On the last day of December, sunrise is at 07:06 and sunset at 16:58 JST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Onohamacho. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Onohamacho, Japan
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (7.9°C).
- Average low temperature in December: 5.5°C
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in December
Onohamacho, Japan
- Average pressure in December: 1019.5mbar
The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in December
Onohamacho, Japan
- Average wind speed in December: 14.6km/h
The windiest month (with the highest average wind speed) is January (15km/h).
The calmest month (with the lowest average wind speed) is June (9.5km/h).
Average humidity in December
Onohamacho, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are March and April (71%).
Average rainfall in December
Onohamacho, Japan
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is July (127mm).
The driest month (with the least rainfall) is January (31mm).
Average rainfall days in December
Onohamacho, Japan
- Average rainfall days in December: 15.6 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is May (11.7 days).
Average snowfall in December
Onohamacho, Japan
- Average snowfall in December: 10mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Onohamacho, Japan
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (5.8 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
Onohamacho, 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: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in December
Onohamacho, Japan
- Average sunshine days in December: 8.9 days
The month with the most sunshine days is May (17.1 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in December
Onohamacho, 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
Onohamacho, Japan
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Onohamacho, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
