December weather forecastKamiichi, Japan
December
Weather in December
The first month of the winter, December, is still a cold month in Kamiichi, Japan, with an average temperature ranging between min -1.2°C (29.8°F) and max 4.1°C (39.4°F).Temperature
December brings a minor decrease, with the average high-temperature reducing from a fresh 10.3°C (50.5°F) in November to an icy 4.1°C (39.4°F). An average low-temperature of -1.2°C (29.8°F) is recorded during the nights in December.Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 17.9 days. Throughout December, 165mm (6.5") of precipitation is accumulated. In Kamiichi, during the entire year, the rain falls for 215.5 days and collects up to 1635mm (64.37") of precipitation.Snowfall
Months with snowfall in Kamiichi are January through April, November and December. In Kamiichi, in December, during 12.8 snowfall days, 447mm (17.6") of snow is typically accumulated. Throughout the year, there are 64.1 snowfall days, and 2003mm (78.86") of snow is accumulated.Daylight
The month with the shortest days in Kamiichi is December, with an average of 9h and 42min of daylight.On the first day of December in Kamiichi, sunrise is at 06:44 and sunset at 16:34. On the last day of the month, sunrise is at 07:02 and sunset at 16:44 JST.
Sunshine
In December, the average sunshine is 3.7h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Kamiichi. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kamiichi, Japan
- Average high temperature in December: 4.1°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (1°C).
- Average low temperature in December: -1.2°C
The month with the highest average low temperature is August (19.9°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).
Average pressure in December
Kamiichi, Japan
- Average pressure in December: 1018mbar
The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Kamiichi, Japan
- Average wind speed in December: 14.4km/h
The windiest month (with the highest average wind speed) is December (14.4km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in December
Kamiichi, Japan
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
Kamiichi, Japan
- Average rainfall in December: 165mm
The wettest month (with the highest rainfall) is July (228mm).
The driest month (with the least rainfall) is May (89mm).
Average rainfall days in December
Kamiichi, Japan
- Average rainfall days in December: 17.9 days
The month with the highest number of rainy days is July (26 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in December
Kamiichi, Japan
- Average snowfall in December: 447mm
The month with the highest snowfall is January (663mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Kamiichi, Japan
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is January (20.3 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
Kamiichi, Japan
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Kamiichi, Japan
- Average sunshine days in December: 5 days
The month with the most sunshine days is May (13.6 days).
The month with the least sunshine days is July (2.9 days).
Average UV index in December
Kamiichi, 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
Kamiichi, Japan
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in December
Kamiichi, Japan
- Average visibility in December: 9km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is January (8km).





