Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
In December, the average high-temperature goes from a frosty 9.3°C (48.7°F) in November to a wintry 2.5°C (36.5°F). Night temperatures in December exhibit a subtle decrease, settling at an average of -2.1°C (28.2°F).Humidity
In Tsunozawa, the average relative humidity in December is 89%.Rainfall
In Tsunozawa, Japan, in December, during 13.1 rainfall days, 116mm (4.57") of precipitation is typically accumulated. In Tsunozawa, during the entire year, the rain falls for 196 days and collects up to 1198mm (47.17") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Tsunozawa, during December, snow falls for 20.6 days and regularly aggregates up to 559mm (22.01") of snow. Throughout the year, there are 91.3 snowfall days, and 2122mm (83.54") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 06:38 and sunset at 16:17. On the last day of December, sunrise is at 06:56 and sunset at 16:27 JST.
Sunshine
In December, the average sunshine is 2.1h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Tsunozawa have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Tsunozawa, Japan
- Average high temperature in December: 2.5°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in December: -2.1°C
The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in December
Tsunozawa, Japan
- Average pressure in December: 1016.3mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The months with the lowest atmospheric pressure are June and July (1009.1mbar).
Average wind speed in December
Tsunozawa, Japan
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is January (13km/h).
The calmest months (with the lowest average wind speed) are July and August (7.3km/h).
Average humidity in December
Tsunozawa, Japan
- Average humidity in December: 89%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Tsunozawa, Japan
- Average rainfall in December: 116mm
The wettest month (with the highest rainfall) is July (171mm).
The driest month (with the least rainfall) is November (71mm).
Average rainfall days in December
Tsunozawa, Japan
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Tsunozawa, Japan
- Average snowfall in December: 559mm
The month with the highest snowfall is January (673mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Tsunozawa, Japan
- Average snowfall days in December: 20.6 days
The month with the highest number of snowfall days is January (25.8 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
Tsunozawa, Japan
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is January (Average sunshine: 1h and 18min).
Average sunshine days in December
Tsunozawa, Japan
- Average sunshine days in December: 3.3 days
The month with the most sunshine days is May (12.6 days).
The month with the least sunshine days is January (3 days).
Average UV index in December
Tsunozawa, 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 and December (UV index 1).
Average cloud cover in December
Tsunozawa, Japan
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in December
Tsunozawa, Japan
- Average visibility in December: 7km
The months with the highest visibility are March, April, May, October and November (8km).
The months with the lowest visibility are January and February (6km).
