December weather forecastNagano, Japan
December weather for Nagano, Japan: In Nagano, Japan, during December, snow falls for 10.8 days and regularly aggregates up to 450mm (17.72") of snow. In Nagano, in December, during 10.8 snowfall days, 450mm (17.72") of snow is typically accumulated.
December
Weather in December
December rings in the winter season in full swing in Nagano, Japan. The city returns to the cool temperatures of the year's onset, with average temperatures sliding down to 6.8°C (44.2°F) and an increased snowfall of 450mm (17.72"). The snow begins to grace Nagano again, transforming the city's aesthetic from warm fall colors to a snowy winter wonderland. With the festive season around the corner, December imbues a sense of cheer and positivity amongst the citizens, further complemented by the enchanting winter climate.Temperature
Nagano's progression into December includes a drop in the average high-temperature, from a refreshing 13°C (55.4°F) in November to a chilly 6.8°C (44.2°F). Throughout December, an average nighttime temperature of -1.6°C (29.1°F) is experienced.Humidity
In December, the average relative humidity is 77%.Rainfall
In Nagano, in December, during 10.4 rainfall days, 46mm (1.81") of precipitation is typically accumulated. Throughout the year, in Nagano, Japan, there are 129.8 rainfall days, and 933mm (36.73") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Nagano, in December, during 10.8 snowfall days, 450mm (17.72") of snow is typically accumulated. In Nagano, Japan, during the entire year, snow falls for 63 days and aggregates up to 2570mm (101.18") of snow.Daylight
The month with the shortest days in Nagano is December, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 06:40 and sunset at 16:31. On the last day of the month, sunrise is at 06:59 and sunset at 16:41 JST.
Sunshine
In Nagano, Japan, the average sunshine in December is 4.4h.Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nagano, Japan
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in December: -1.6°C
The month with the highest average low temperature is August (21.3°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).
Average humidity in December
Nagano, Japan
- Average humidity in December: 77%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is April (61%).
Average rainfall in December
Nagano, Japan
- Average rainfall in December: 45.5mm
The wettest month (with the highest rainfall) is July (134.4mm).
The driest month (with the least rainfall) is November (44.3mm).
Average rainfall days in December
Nagano, Japan
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (13.1 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Nagano, Japan
- Average snowfall in December: 450mm
The month with the highest snowfall is January (980mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Nagano, Japan
- Average snowfall days in December: 10.8 days
The month with the highest number of snowfall days is January (22.9 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
Nagano, 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: 4h and 24min
The month with the most sunshine is May (Average sunshine: 6h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
