December weather forecast
Yuni, Japan

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Weather in December

The first month of the winter, December, is still a freezing cold month in Yuni, Japan, with temperature in the range of an average low of -8.1°C (17.4°F) and an average high of -1.6°C (29.1°F).

Temperature

With December's arrival, Yuni's weather changes as the average high-temperature falls from a wintry 5.1°C (41.2°F) in November to a freezing cold -1.6°C (29.1°F). December witnesses an average nighttime temperature of -8.1°C (17.4°F).

Humidity

In Yuni, Japan, the average relative humidity in December is 90%.

Rainfall

In Yuni, in December, it is raining for 7.4 days, with typically 73mm (2.87") of accumulated precipitation. Throughout the year, in Yuni, there are 152.1 rainfall days, and 805mm (31.69") of precipitation is accumulated.

Snowfall

Months with snowfall in Yuni are January through May, October through December. The month with the most snowfall in Yuni is December, when snow falls for 23.7 days and typically aggregates up to 442mm (17.4") of snow.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:44 and sunset at 15:59. On the last day of December, sunrise is at 07:03 and sunset at 16:07 JST.

Sunshine

The average sunshine in December in Yuni is 2.5h.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Yuni. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 1 transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

How cold is it in Yuni in December?

In December, the average high-temperature and low-temperature in Yuni are -1.6°C (29.1°F) and -8.1°C (17.4°F) respectively.

What is the average humidity in December in Yuni?

The average relative humidity in December in Yuni is 90%.

How many days does it rain in December in Yuni?

In Yuni, Japan, during December, the rain falls for 7.4 days and regularly aggregates up to 73mm (2.87") of precipitation.

What is the snowiest month in Yuni?

December is the month with the most snowfall. Snow falls for 23.7 days and accumulates 442mm (17.4") of snow.

How much does it snow in Yuni in December?

In Yuni, Japan, in December, during 23.7 snowfall days, 442mm (17.4") of snow is typically accumulated.

What is the month with the shortest days in Yuni?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Yuni?

The average day length in December in Yuni is 9h and 4min.

When are sunrise and sunset in December in Yuni?

On the first day of December in Yuni, Japan, sunrise is at 06:44 and sunset at 15:59. On the last day of the month, sunrise is at 07:03 and sunset at 16:07 JST.

How many hours of sunshine does Yuni have in December?

In December, the average sunshine duration is 2.5h.

When is the lowest UV index in Yuni?

The months with the lowest UV index in Yuni are January through March, November and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Yuni?

In December, the average daily maximum UV index in Yuni is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Yuni, Japan

Average temperature in December - Yuni, Japan
  • Average high temperature in December: -1.6°C

The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (-4°C).

  • Average low temperature in December: -8.1°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-12.8°C).

Average pressure in December
Yuni, Japan

Average pressure in December - Yuni, Japan
  • Average pressure in December: 1012.8mbar

The months with the highest atmospheric pressure are October and November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).

Average wind speed in December
Yuni, Japan

Average wind speed in December - Yuni, Japan
  • Average wind speed in December: 10.4km/h

The windiest month (with the highest average wind speed) is April (11.8km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).

Average humidity in December
Yuni, Japan

Average humidity in December - Yuni, Japan
  • Average humidity in December: 90%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (78%).

Average rainfall in December
Yuni, Japan

Average rainfall in December - Yuni, Japan
  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is August (119mm).
The driest months (with the least rainfall) are January and February (50mm).

Average rainfall days in December
Yuni, Japan

Average rainfall days in December - Yuni, Japan
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is July (19.8 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall in December
Yuni, Japan

Average snowfall in December - Yuni, Japan
  • Average snowfall in December: 442mm

The month with the highest snowfall is December (442mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Yuni, Japan

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

The month with the highest number of snowfall days is January (26.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Yuni, Japan

Average daylight in December / Average sunshine in December - Yuni, Japan
  • Average daylight in December: 9h and 1min

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 6min).

  • Average sunshine in December: 2h and 3min

The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in December
Yuni, Japan

Average sunshine days in December - Yuni, Japan
  • Average sunshine days in December: 5.4 days

The month with the most sunshine days is May (14.4 days).
The month with the least sunshine days is January (4.3 days).

Average UV index in December
Yuni, Japan

Average UV index in December - Yuni, Japan
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in December
Yuni, Japan

Average cloud cover in December - Yuni, Japan
  • Average cloud cover in December: 73

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is October (Cloud cover 47).

Average visibility in December
Yuni, Japan

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

The months with the highest visibility are April, May, October and November (8km).
The month with the lowest visibility is January (5km).

Yuni, Japan

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