December weather forecast
Yorii, Japan

December

Weather in December

The first month of the winter, December, is also a frosty month in Yorii, Japan, with an average temperature ranging between min 2.2°C (36°F) and max 8.9°C (48°F).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a refreshing 14.4°C (57.9°F) in November to a frosty 8.9°C (48°F). Nightly temperatures drop to an average low of 2.2°C (36°F) in December.

Humidity

In December, the average relative humidity is 65%.

Rainfall

The months with the least rainfall in Yorii are February and December Rain falls for 6.8 days and accumulates 22mm (0.87") of rain.

Snowfall

Months with snowfall in Yorii are January through March, November and December. In Yorii, in December, snow falls for 0.6 days, with typically accumulated 3mm (0.12") of snow. Throughout the year, in Yorii, there are 7.4 snowfall days, and 112mm (4.41") of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:35 and sunset at 16:28. On the last day of December, in Yorii, sunrise is at 06:53 and sunset at 16:38 JST.

Sunshine

In December, the average sunshine in Yorii is 6.8h.

UV index

The months with the lowest UV index in Yorii are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

What is the average December temperature in Yorii?
The high-temperature in Yorii during December is 8.9°C (48°F) and the low-temperature is 2.2°C (36°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 37°C (98.6°F).
What is the average humidity in December in Yorii?
The average relative humidity in December is 65%.
What is the driest month in Yorii?
February and December are months with the least rain in Yorii, Japan, when the rain falls for 6.8 days and typically aggregates up to 22mm (0.87") of rain.
How much does it rain in Yorii in December?
In Yorii, in December, during 6.8 rainfall days, 22mm (0.87") of precipitation is typically accumulated.
How many days does it snow in December in Yorii?
In Yorii, in December, during 0.6 snowfall days, 3mm (0.12") of snow is typically accumulated.
What is the month with the shortest days in Yorii?
With an average of 9h and 48min of daylight, December has the shortest days of the year.
How many hours of daylight does Yorii have in December?
In December, the average day length in Yorii, Japan, is 9h and 45min.
What time are sunrise and sunset in December in Yorii?
In December, on the first day of the month, sunrise is at 06:35 and sunset at 16:28. On the last day of the month, sunrise is at 06:53 and sunset at 16:38 JST.
How many hours of sunshine does Yorii have in December?
In Yorii, the average sunshine duration in December is 6.8h.
What is the month with the lowest UV index in Yorii?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Yorii.
What is the UV index intensity in December in Yorii?
In Yorii, Japan, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from 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
Yorii, Japan
  • Average high temperature in December: 8.9°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (6.4°C).

  • Average low temperature in December: 2.2°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).

Average pressure in December
Yorii, Japan
  • Average pressure in December: 1016.8mbar

The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December
Yorii, Japan
  • Average wind speed in December: 9km/h

The windiest month (with the highest average wind speed) is January (10km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).

Average humidity in December
Yorii, Japan
  • Average humidity in December: 65%

The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (62%).

Average rainfall in December
Yorii, Japan
  • Average rainfall in December: 22mm

The wettest month (with the highest rainfall) is October (122mm).
The driest months (with the least rainfall) are February and December (22mm).

Average rainfall days in December
Yorii, Japan
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is July (22.9 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in December
Yorii, Japan
  • Average snowfall in December: 3mm

The month with the highest snowfall is February (58mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Yorii, Japan
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is February (3 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
Yorii, Japan
  • Average daylight in December: 9h and 5min

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 48min).

  • Average sunshine in December: 6h and 5min

The months with the most sunshine are May and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

Average sunshine days in December
Yorii, Japan
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is July (5.6 days).

Average UV index in December
Yorii, Japan
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Yorii, Japan
  • Average cloud cover in December: 26

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 25).

Average visibility in December
Yorii, Japan
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).

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