December weather forecastKatagami, Japan
December
Weather in December
December, the first month of the winter in Katagami, is also a wintry month, with temperature in the range of an average low of 1.7°C (35.1°F) and an average high of 5°C (41°F).Temperature
The onset of December brings a small change in high-temperatures, falling from a fresh 11°C (51.8°F) in November to a wintry 5°C (41°F). Katagami experiences a subtle drop in temperature during the December nights, recording an average of 1.7°C (35.1°F).Humidity
The average relative humidity in December is 78%.Rainfall
December is the month with the most rainfall. Rain falls for 15.9 days and accumulates 137mm (5.39") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Katagami, in December, during 13.5 snowfall days, 199mm (7.83") of snow is typically accumulated. Throughout the year, there are 66.2 snowfall days, and 833mm (32.8") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 06:42 and sunset at 16:15. On the last day of December, sunrise is at 07:01 and sunset at 16:24 JST.
Sunshine
The average sunshine in December is 2.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 1 during December leads to these advisories:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Katagami, Japan
- Average high temperature in December: 5°C
The warmest month (with the highest average high temperature) is August (26.7°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in December: 1.7°C
The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (-1.8°C).
Average pressure in December
Katagami, Japan
- Average pressure in December: 1015.7mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in December
Katagami, Japan
- Average wind speed in December: 23.5km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).
Average humidity in December
Katagami, Japan
- Average humidity in December: 78%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are April and October (74%).
Average rainfall in December
Katagami, Japan
- Average rainfall in December: 137mm
The wettest month (with the highest rainfall) is December (137mm).
The driest month (with the least rainfall) is May (56mm).
Average rainfall days in December
Katagami, Japan
- Average rainfall days in December: 15.9 days
The month with the highest number of rainy days is November (21.6 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Katagami, Japan
- Average snowfall in December: 199mm
The month with the highest snowfall is January (259mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Katagami, Japan
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (20.9 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
Katagami, Japan
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 2h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in December
Katagami, Japan
- Average sunshine days in December: 2.4 days
The month with the most sunshine days is May (14.4 days).
The month with the least sunshine days is January (1.4 days).
Average UV index in December
Katagami, 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 and December (UV index 1).
Average cloud cover in December
Katagami, Japan
- Average cloud cover in December: 78
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in December
Katagami, Japan
- Average visibility in December: 8km
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is January (7km).
