December weather forecast
Yabu, Japan

December

Weather in December

The first month of the winter, December, is also a frosty month in Yabu, Japan, with an average temperature fluctuating between 3.5°C (38.3°F) and 8°C (46.4°F).

Temperature

The transition into December involves a decrease in the average high-temperature, falling from a refreshing 13.7°C (56.7°F) in November to a frosty 8°C (46.4°F). Throughout December, Yabu reports a steady low-temperature average of 3.5°C (38.3°F), slightly lower than its daytime counterpart.

Humidity

In Yabu, Japan, the average relative humidity in December is 82%.

Rainfall

In Yabu, in December, it is raining for 20.9 days, with typically 98mm (3.86") of accumulated precipitation. Throughout the year, in Yabu, Japan, there are 218 rainfall days, and 1407mm (55.39") of precipitation is accumulated.

Snowfall

Months with snowfall are January through April and December. December is the first month it typically snows. Throughout December, in the average 8 snowfall days, it receives 149mm (5.87") of snow. In Yabu, during the entire year, snow falls for 43.1 days and aggregates up to 737mm (29.02") of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Yabu, Japan.
On the first day of the month, sunrise is at 06:51 and sunset at 16:48. On the last day of December, in Yabu, sunrise is at 07:09 and sunset at 16:58 JST.

Sunshine

In Yabu, the average sunshine in December is 3.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Yabu. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

What is the usual temperature for Yabu in December?
In December, in Yabu, the average high-temperature is 8°C (46.4°F), and the average low-temperature is 3.5°C (38.3°F). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 37°C (98.6°F).
What is the average humidity in December in Yabu?
The average relative humidity in December in Yabu, Japan, is 82%.
How many days does it rain in December in Yabu?
In Yabu, Japan, in December, during 20.9 rainfall days, 98mm (3.86") of precipitation is typically accumulated.
When does it start snowing in Yabu?
December is the first month it typically snows in Yabu, Japan. Throughout December, in the average 8 snowfall days, it receives 149mm (5.87") of snow.
What is the month with the shortest days in Yabu?
With an average of 9h and 48min of daylight, December has the shortest days of the year in Yabu.
How many hours of daylight does Yabu have in December?
In Yabu, the average day length in December is 9h and 49min.
When is the sunrise / sunset in December in Yabu?
On the first day of December in Yabu, Japan, sunrise is at 06:51 and sunset at 16:48. On the last day of the month, sunrise is at 07:09 and sunset at 16:58 JST.
How many hours of sunshine does Yabu have in December?
In December, the average sunshine duration in Yabu, Japan, is 3.2h.
When is the lowest UV index in Yabu?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Yabu.
What is the UV index reading in December in Yabu?
The average daily maximum UV index in December in Yabu, Japan, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Yabu, Japan
  • Average high temperature in December: 8°C

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (5.5°C).

  • Average low temperature in December: 3.5°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).

Average pressure in December
Yabu, Japan
  • Average pressure in December: 1019.4mbar

The month with the highest atmospheric pressure is February (1020.2mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).

Average wind speed in December
Yabu, Japan
  • Average wind speed in December: 14.1km/h

The windiest months (with the highest average wind speed) are January and December (14.1km/h).
The calmest months (with the lowest average wind speed) are June and August (7.7km/h).

Average humidity in December
Yabu, Japan
  • Average humidity in December: 82%

The month with the highest relative humidity is July (87%).
The months with the lowest relative humidity are April and May (77%).

Average rainfall in December
Yabu, Japan
  • Average rainfall in December: 98mm

The wettest month (with the highest rainfall) is July (203mm).
The driest month (with the least rainfall) is February (67mm).

Average rainfall days in December
Yabu, Japan
  • Average rainfall days in December: 20.9 days

The month with the highest number of rainy days is July (24.4 days).
The month with the least rainy days is February (12.7 days).

Average snowfall in December
Yabu, Japan
  • Average snowfall in December: 149mm

The month with the highest snowfall is January (281mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Yabu, Japan
  • Average snowfall days in December: 8 days

The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Yabu, Japan
  • Average daylight in December: 9h and 5min

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: 3h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in December
Yabu, Japan
  • Average sunshine days in December: 5 days

The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (4.3 days).

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

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Yabu, Japan
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is May (Cloud cover 39).

Average visibility in December
Yabu, Japan
  • Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, October, November and December (9km).
The months with the lowest visibility are January, June, July, August and September (8km).

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