December weather forecastYamadera, Japan
December
Weather in December
The first month of the winter, December, is also a wintry month in Yamadera, Japan, with an average temperature varying between -2.6°C (27.3°F) and 2.7°C (36.9°F).Temperature
In December, the average high-temperature decreases from a frosty 9.4°C (48.9°F) in November to a cold 2.7°C (36.9°F). In December, Yamadera records an average nighttime temperature of -2.6°C (27.3°F).Humidity
The average relative humidity in December is 88%.Rainfall
In Yamadera, in December, it is raining for 14.8 days, with typically 85mm (3.35") of accumulated precipitation. In Yamadera, during the entire year, the rain falls for 197.8 days and collects up to 1123mm (44.21") of precipitation.Snowfall
Months with snowfall in Yamadera, Japan, are January through April, November and December. In Yamadera, in December, snow falls for 18 days, with typically accumulated 375mm (14.76") of snow. In Yamadera, Japan, during the entire year, snow falls for 84.2 days and aggregates up to 1494mm (58.82") of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 06:36 and sunset at 16:18. On the last day of the month, sunrise is at 06:54 and sunset at 16:27 JST.
Sunshine
In December, the average sunshine in Yamadera is 3.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yamadera, Japan
- Average high temperature in December: 2.7°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in December: -2.6°C
The month with the highest average low temperature is August (18.1°C).
The coldest month (with the lowest average low temperature) is February (-6.3°C).
Average pressure in December
Yamadera, Japan
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is November (1018.8mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Yamadera, Japan
- Average wind speed in December: 11.3km/h
The windiest months (with the highest average wind speed) are January and February (11.9km/h).
The calmest months (with the lowest average wind speed) are July and August (6.5km/h).
Average humidity in December
Yamadera, Japan
- Average humidity in December: 88%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Yamadera, Japan
- Average rainfall in December: 85mm
The wettest month (with the highest rainfall) is July (155mm).
The driest month (with the least rainfall) is February (56mm).
Average rainfall days in December
Yamadera, Japan
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in December
Yamadera, Japan
- Average snowfall in December: 375mm
The month with the highest snowfall is January (504mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Yamadera, Japan
- Average snowfall days in December: 18 days
The month with the highest number of snowfall days is January (25.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Yamadera, Japan
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is May (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Yamadera, Japan
- Average sunshine days in December: 4.6 days
The month with the most sunshine days is May (14.9 days).
The month with the least sunshine days is January (2.8 days).
Average UV index in December
Yamadera, Japan
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Yamadera, Japan
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is May (Cloud cover 45).
Average visibility in December
Yamadera, Japan
- Average visibility in December: 7km
The months with the highest visibility are March, April, May and November (8km).
The months with the lowest visibility are January and February (6km).
