December weather forecast
Tobetsu, Japan

December

Weather in December

The first month of the winter, December, is still a freezing cold month in Tobetsu, Japan, with temperature in the range of an average high of -0.4°C (31.3°F) and an average low of -4.7°C (23.5°F).

Temperature

During the transition into December, Tobetsu observes a decrease in the average high-temperature, falling from a chilly 6.1°C (43°F) in November to a subzero cold -0.4°C (31.3°F). A modest nighttime temperature average of -4.7°C (23.5°F) characterizes December.

Humidity

The average relative humidity in December in Tobetsu is 84%.

Rainfall

In Tobetsu, in December, during 9.7 rainfall days, 84mm (3.31") of precipitation is typically accumulated. In Tobetsu, during the entire year, the rain falls for 170.5 days and collects up to 861mm (33.9") of precipitation.

Snowfall

Months with snowfall in Tobetsu are January through May, October through December. In Tobetsu, Japan, during December, snow falls for 23.7 days and regularly aggregates up to 345mm (13.58") of snow. Throughout the year, in Tobetsu, Japan, there are 111.1 snowfall days, and 1455mm (57.28") of snow is accumulated.

Daylight

December has the shortest days of the year in Tobetsu, with an average of 9h and 0min of daylight.
On the first day of December, sunrise is at 06:46 and sunset at 15:59. On the last day of the month, sunrise is at 07:05 and sunset at 16:08 JST.

Sunshine

In Tobetsu, the average sunshine in December is 2.4h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Tobetsu. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is December in Tobetsu?
In Tobetsu, in December, the average high-temperature is -0.4°C (31.3°F), and the average low-temperature is -4.7°C (23.5°F).
What is the average humidity in December in Tobetsu?
In December, the average relative humidity in Tobetsu is 84%.
How many days does it rain in December in Tobetsu?
In December, in Tobetsu, Japan, the rain falls for 9.7 days. Throughout December, 84mm (3.31") of precipitation is accumulated.
How many days does it snow in December in Tobetsu?
In Tobetsu, Japan, in December, snow falls for 23.7 days, with typically accumulated 345mm (13.58") of snow.
What is the month with the shortest days in Tobetsu?
December has the shortest days of the year in Tobetsu, Japan, with an average of 9h and 0min of daylight.
How many hours of daylight does Tobetsu have in December?
In Tobetsu, Japan, the average day length in December is 9h and 3min.
When is the sunrise / sunset in December in Tobetsu?
In December, on the first day of the month, sunrise is at 06:46 and sunset at 15:59. On the last day of the month, in Tobetsu, sunrise is at 07:05 and sunset at 16:08 JST.
How long on average sun shines in December in Tobetsu?
The average sunshine duration in December is 2.4h.
What are the months with the lowest UV index in Tobetsu?
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Tobetsu.
What is the UV index reading in December in Tobetsu?
In Tobetsu, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Tobetsu, Japan
Average temperature in December
Tobetsu, Japan
  • Average high temperature in December: -0.4°C

The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-2.8°C).

  • Average low temperature in December: -4.7°C

The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (-8.5°C).

Average pressure in December - Tobetsu, Japan
Average pressure in December
Tobetsu, Japan
  • Average pressure in December: 1012.9mbar

The month with the highest atmospheric pressure is November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).

Average wind speed in December - Tobetsu, Japan
Average wind speed in December
Tobetsu, Japan
  • Average wind speed in December: 16.9km/h

The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.1km/h).

Average humidity in December - Tobetsu, Japan
Average humidity in December
Tobetsu, Japan
  • Average humidity in December: 84%

The months with the highest relative humidity are January and July (87%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in December - Tobetsu, Japan
Average rainfall in December
Tobetsu, Japan
  • Average rainfall in December: 84mm

The wettest month (with the highest rainfall) is August (123mm).
The driest month (with the least rainfall) is April (45mm).

Average rainfall days in December - Tobetsu, Japan
Average rainfall days in December
Tobetsu, Japan
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in December - Tobetsu, Japan
Average snowfall in December
Tobetsu, Japan
  • Average snowfall in December: 345mm

The month with the highest snowfall is January (377mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Tobetsu, Japan
Average snowfall days in December
Tobetsu, Japan
  • Average snowfall days in December: 23.7 days

The month with the highest number of snowfall days is January (27.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Tobetsu, Japan
Average daylight in December /
Average sunshine in December
Tobetsu, Japan
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 2h and 2min

The months with the most sunshine are May and August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).

Average sunshine days in December - Tobetsu, Japan
Average sunshine days in December
Tobetsu, Japan
  • Average sunshine days in December: 2.2 days

The month with the most sunshine days is May (12.1 days).
The month with the least sunshine days is December (2.2 days).

Average UV index in December - Tobetsu, Japan
Average UV index in December
Tobetsu, 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, November and December (UV index 1).

Average cloud cover in December - Tobetsu, Japan
Average cloud cover in December
Tobetsu, Japan
  • Average cloud cover in December: 76

The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is September (Cloud cover 39).

Average visibility in December - Tobetsu, Japan
Average visibility in December
Tobetsu, Japan
  • Average visibility in December: 7km

The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February and December (7km).

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