December weather forecast
Kozu, Japan

December

Weather in December

The first month of the winter, December, is also a frosty month in Kozu, Japan, with temperature in the range of an average low of 3°C (37.4°F) and an average high of 8.9°C (48°F).

Temperature

December's arrival corresponds with a decrease in average high-temperatures, from November's refreshing 15°C (59°F) to a chilly 8.9°C (48°F). Throughout December, Kozu registers a consistent average low-temperature of 3°C (37.4°F).

Humidity

In Kozu, the average relative humidity in December is 79%.

Rainfall

In Kozu, in December, during 10.5 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Kozu, during the entire year, the rain falls for 166.4 days and collects up to 751mm (29.57") of precipitation.

Snowfall

January through March and December are months with snowfall in Kozu. December is the first month it typically snows in Kozu. Throughout December, in the average 1.4 snowfall days, it receives 7mm (0.28") of snow. Throughout the year, there are 9.5 snowfall days, and 42mm (1.65") of snow is accumulated.

Daylight

The month with the shortest days in Kozu is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 06:46 and sunset at 16:47. On the last day of December, sunrise is at 07:04 and sunset at 16:57 JST.

Sunshine

In Kozu, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index in Kozu, Japan, 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 unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

What are December temperatures in Kozu?
The high-temperature, in December, in Kozu, is 8.9°C (48°F), while the low-temperature averages to 3°C (37.4°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 40°C (104°F).
What is the average humidity in December in Kozu?
In Kozu, Japan, the average relative humidity in December is 79%.
How much does it rain in Kozu in December?
In Kozu, in December, during 10.5 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
When does it start to snow in Kozu?
December is the first month it typically snows in Kozu, Japan. Throughout December, in the average 1.4 snowfall days, it receives 7mm (0.28") of snow.
What is the month with the shortest days in Kozu?
With an average of 9h and 54min of daylight, December has the shortest days of the year in Kozu, Japan.
How many hours of daylight does Kozu have in December?
In Kozu, Japan, the average day length in December is 9h and 53min.
When is the sunrise / sunset in December in Kozu?
On the first day of December in Kozu, sunrise is at 06:46 and sunset at 16:47. On the last day of the month, sunrise is at 07:04 and sunset at 16:57 JST.
How long on average sun shines in December in Kozu?
In Kozu, the average sunshine duration in December is 5.1h.
When is the lowest UV index in Kozu?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Kozu, Japan.
What is the UV index reading in December in Kozu?
The average daily maximum UV index in December in Kozu, Japan, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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 - Kozu, Japan
Average temperature in December
Kozu, Japan
  • Average high temperature in December: 8.9°C

The warmest month (with the highest average high temperature) is August (31.2°C).
The month with the lowest average high temperature is January (6.6°C).

  • Average low temperature in December: 3°C

The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (0.5°C).

Average pressure in December - Kozu, Japan
Average pressure in December
Kozu, Japan
  • Average pressure in December: 1019.2mbar

The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.9mbar).

Average wind speed in December - Kozu, Japan
Average wind speed in December
Kozu, Japan
  • Average wind speed in December: 8.4km/h

The windiest months (with the highest average wind speed) are January and March (8.7km/h).
The calmest month (with the lowest average wind speed) is June (6.9km/h).

Average humidity in December - Kozu, Japan
Average humidity in December
Kozu, Japan
  • Average humidity in December: 79%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is May (71%).

Average rainfall in December - Kozu, Japan
Average rainfall in December
Kozu, Japan
  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is July (145mm).
The driest month (with the least rainfall) is January (22mm).

Average rainfall days in December - Kozu, Japan
Average rainfall days in December
Kozu, Japan
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is January (9.6 days).

Average snowfall in December - Kozu, Japan
Average snowfall in December
Kozu, Japan
  • Average snowfall in December: 7mm

The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December - Kozu, Japan
Average snowfall days in December
Kozu, Japan
  • Average snowfall days in December: 1.4 days

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December / Average sunshine in December - Kozu, Japan
Average daylight in December /
Average sunshine in December
Kozu, 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: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December - Kozu, Japan
Average sunshine days in December
Kozu, Japan
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (6.4 days).

Average UV index in December - Kozu, Japan
Average UV index in December
Kozu, 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 - Kozu, Japan
Average cloud cover in December
Kozu, Japan
  • Average cloud cover in December: 44

The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December - Kozu, Japan
Average visibility in December
Kozu, Japan
  • Average visibility in December: 9km

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

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