December weather forecastNarusawa, Japan
December
Weather in December
The first month of the winter, December, is still a chilly month in Narusawa, Japan, with an average temperature fluctuating between 6.2°C (43.2°F) and -2.2°C (28°F).Temperature
In Narusawa, the average high-temperature in December drops from a cool 12°C (53.6°F) in November to a frosty 6.2°C (43.2°F). In the month of December, the average low-temperature in Narusawa usually rests at a freezing cold -2.2°C (28°F).Humidity
The average relative humidity in December is 72%.Rainfall
In Narusawa, in December, it is raining for 8.5 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Narusawa, Japan, there are 204.8 rainfall days, and 1221mm (48.07") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Narusawa. In Narusawa, in December, snow falls for 8 days, with typically accumulated 143mm (5.63") of snow. Throughout the year, in Narusawa, there are 52.8 snowfall days, and 1038mm (40.87") of snow is accumulated.Daylight
The month with the shortest days in Narusawa is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 06:35 and sunset at 16:32. On the last day of December, sunrise is at 06:54 and sunset at 16:42 JST.
Sunshine
In Narusawa, the average sunshine in December is 6.8h.UV index
The months with the lowest UV index in Narusawa are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! Reflection from snow can magnify 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
Narusawa, Japan
- Average high temperature in December: 6.2°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in December: -2.2°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in December
Narusawa, Japan
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Narusawa, Japan
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is January (8.3km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).
Average humidity in December
Narusawa, Japan
- Average humidity in December: 72%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (70%).
Average rainfall in December
Narusawa, Japan
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is July (206mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in December
Narusawa, Japan
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is August (28.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Narusawa, Japan
- Average snowfall in December: 143mm
The month with the highest snowfall is March (284mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Narusawa, Japan
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Narusawa, Japan
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 48min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in December
Narusawa, Japan
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is December (17.8 days).
The month with the least sunshine days is July (1.7 days).
Average UV index in December
Narusawa, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Narusawa, Japan
- Average cloud cover in December: 28
The months with the most cloud cover are June and July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility in December
Narusawa, Japan
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, November and December (9km).
The month with the lowest visibility is September (7km).
