December weather forecast
Chichibu, Japan

December

Weather in December

December, the first month of the winter in Chichibu, is still a chilly month, with temperature in the range of an average high of 7.7°C (45.9°F) and an average low of 0.7°C (33.3°F).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a moderate 13°C (55.4°F) in November to a chilly 7.7°C (45.9°F). Chichibu observes an average nighttime low-temperature of 0.7°C (33.3°F) during the month of December.

Humidity

The average relative humidity in December is 68%.

Rainfall

In Chichibu, in December, it is raining for 7.5 days, with typically 32mm (1.26") of accumulated precipitation. In Chichibu, Japan, during the entire year, the rain falls for 181.9 days and collects up to 1096mm (43.15") of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Chichibu, in December, during 3.4 snowfall days, 30mm (1.18") of snow is typically accumulated. In Chichibu, during the entire year, snow falls for 24.4 days and aggregates up to 413mm (16.26") of snow.

Daylight

The month with the shortest days in Chichibu is December, with an average of 9h and 48min of daylight.
On the first day of December in Chichibu, Japan, sunrise is at 06:35 and sunset at 16:29. On the last day of the month, sunrise is at 06:53 and sunset at 16:39 JST.

Sunshine

In Chichibu, the average sunshine in December is 6.7h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Chichibu. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What is the average December temperature in Chichibu?
The average high-temperature, in December, in Chichibu, is 7.7°C (45.9°F), while the average low-temperature is 0.7°C (33.3°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 34°C (93.2°F).
What is the average humidity in December in Chichibu?
In December, the average relative humidity in Chichibu, Japan, is 68%.
How much does it rain in Chichibu in December?
In December, the rain falls for 7.5 days. Throughout December, 32mm (1.26") of precipitation is accumulated.
How much does it snow in Chichibu in December?
In Chichibu, Japan, in December, during 3.4 snowfall days, 30mm (1.18") of snow is typically accumulated.
What is the month with the shortest days in Chichibu?
With an average of 9h and 48min of daylight, December has the shortest days of the year in Chichibu.
What is the average length of the day in December in Chichibu?
In December, the average day length is 9h and 46min.
When is the sunrise / sunset in December in Chichibu?
On the first day of December, sunrise is at 06:35 and sunset at 16:29. On the last day of the month, sunrise is at 06:53 and sunset at 16:39 JST.
How long on average sun shines in December in Chichibu?
In Chichibu, Japan, the average sunshine duration in December is 6.7h.
What are the months with the lowest UV index in Chichibu?
The months with the lowest UV index in Chichibu, Japan, are January, February and December, with an average maximum UV index of 2.
How high is the UV index in December in Chichibu?
In Chichibu, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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 - Chichibu, Japan
Average temperature in December
Chichibu, Japan
  • Average high temperature in December: 7.7°C

The warmest month (with the highest average high temperature) is August (28.6°C).
The month with the lowest average high temperature is January (5.3°C).

  • Average low temperature in December: 0.7°C

The month with the highest average low temperature is August (20.7°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).

Average pressure in December - Chichibu, Japan
Average pressure in December
Chichibu, Japan
  • Average pressure in December: 1016.9mbar

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 - Chichibu, Japan
Average wind speed in December
Chichibu, Japan
  • Average wind speed in December: 8.6km/h

The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is July (5.8km/h).

Average humidity in December - Chichibu, Japan
Average humidity in December
Chichibu, Japan
  • Average humidity in December: 68%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is January (65%).

Average rainfall in December - Chichibu, Japan
Average rainfall in December
Chichibu, Japan
  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is October (168mm).
The driest month (with the least rainfall) is February (31mm).

Average rainfall days in December - Chichibu, Japan
Average rainfall days in December
Chichibu, Japan
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is July (25.9 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in December - Chichibu, Japan
Average snowfall in December
Chichibu, Japan
  • Average snowfall in December: 30mm

The month with the highest snowfall is February (140mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Chichibu, Japan
Average snowfall days in December
Chichibu, Japan
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is February (8.3 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 - Chichibu, Japan
Average daylight in December /
Average sunshine in December
Chichibu, 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 4min

The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days in December - Chichibu, Japan
Average sunshine days in December
Chichibu, Japan
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is July (3.8 days).

Average UV index in December - Chichibu, Japan
Average UV index in December
Chichibu, 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 - Chichibu, Japan
Average cloud cover in December
Chichibu, Japan
  • Average cloud cover in December: 26

The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is January (Cloud cover 25).

Average visibility in December - Chichibu, Japan
Average visibility in December
Chichibu, Japan
  • Average visibility in December: 10km

The months with the highest visibility are January and December (10km).
The months with the lowest visibility are June, July, August and September (8km).

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