Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Arrival of December comes with a reduction in the average high-temperature, falling from a moderate 15.9°C (60.6°F) in November to a fresh 10.3°C (50.5°F). Kotobukicho records a mild decrease in temperature during the nights of December, averaging a cold 5.6°C (42.1°F).Humidity
In Kotobukicho, the average relative humidity in December is 72%.Rainfall
In Kotobukicho, during December, the rain falls for 10.2 days and regularly aggregates up to 22mm (0.87") of precipitation. In Kotobukicho, during the entire year, the rain falls for 133 days and collects up to 442mm (17.4") of precipitation.Snowfall
January, February and December are months with snowfall in Kotobukicho. December is the first month it typically snows. Throughout December, in the average 1.3 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 5.5 snowfall days, and 14mm (0.55") of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:53 and sunset at 16:54. On the last day of December, sunrise is at 07:11 and sunset at 17:04 JST.
Sunshine
January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the temperature in December in Kotobukicho?
What is the average humidity in December in Kotobukicho?
How many days does it rain in December in Kotobukicho?
When does it start to snow in Kotobukicho?
What is the month with the shortest days in Kotobukicho?
What is the average length of the day in December in Kotobukicho?
When is the sunrise / sunset in December in Kotobukicho?
What is the month with the least sunshine in Kotobukicho?
How long on average sun shines in December in Kotobukicho?
When is the lowest UV index in Kotobukicho?
What is the UV index reading in December in Kotobukicho?
Average temperature in December
Kotobukicho, Japan
- Average high temperature in December: 10.3°C
The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 5.6°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in December
Kotobukicho, Japan
- Average pressure in December: 1020.1mbar
The month with the highest atmospheric pressure is January (1020.5mbar).
The month with the lowest atmospheric pressure is June (1008.5mbar).
Average wind speed in December
Kotobukicho, Japan
- Average wind speed in December: 14.6km/h
The windiest months (with the highest average wind speed) are January and December (14.6km/h).
The calmest month (with the lowest average wind speed) is June (8.5km/h).
Average humidity in December
Kotobukicho, Japan
- Average humidity in December: 72%
The month with the highest relative humidity is July (79%).
The months with the lowest relative humidity are March, April and May (68%).
Average rainfall in December
Kotobukicho, Japan
- Average rainfall in December: 22mm
The wettest month (with the highest rainfall) is July (75mm).
The driest month (with the least rainfall) is November (13mm).
Average rainfall days in December
Kotobukicho, Japan
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Kotobukicho, Japan
- Average snowfall in December: 1mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Kotobukicho, Japan
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Kotobukicho, Japan
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Kotobukicho, Japan
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is May (20.2 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Kotobukicho, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Kotobukicho, Japan
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Kotobukicho, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
Kotobukicho, Japan
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