December weather forecastShirokane, Japan

December

Weather in December

The first month of the winter, December, is still a cool month in Shirokane, Japan, with temperature in the range of an average low of 5.9°C (42.6°F) and an average high of 11.2°C (52.2°F).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a refreshing 16.5°C (61.7°F) in November to a cool 11.2°C (52.2°F). December nights are marked by an average temperature drop to an icy 5.9°C (42.6°F).

Humidity

In December, the average relative humidity in Shirokane is 62%.

Rainfall

December is the month with the least rainfall in Shirokane. Rain falls for 8.8 days and accumulates 21mm (0.83") of precipitation.

Snowfall

April through December are months without snowfall in Shirokane.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Shirokane.
On the first day of the month, sunrise is at 06:32 and sunset at 16:27. On the last day of December, sunrise is at 06:50 and sunset at 16:37 JST.

Sunshine

The average sunshine in December in Shirokane is 6.3h.

UV index

January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Shirokane, Japan. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Shirokane, is 11.2°C (52.2°F), while the average low-temperature is 5.9°C (42.6°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 29°C (84.2°F).

In Shirokane, the average relative humidity in December is 62%.

The month with the least rainfall is December, when the rain falls for 8.8 days and typically collects 21mm (0.83") of precipitation.

In Shirokane, Japan, in December, it is raining for 8.8 days, with typically 21mm (0.83") of accumulated precipitation.

April through December are months without snowfall in Shirokane.

In Shirokane, in December, it doesn't snow. In January, it regularly snows.

December has the shortest days of the year in Shirokane, with an average of 9h and 48min of daylight.

The average day length in December is 9h and 48min.

In December, on the first day of the month, sunrise is at 06:32 and sunset at 16:27. On the last day of the month, in Shirokane, Japan, sunrise is at 06:50 and sunset at 16:37 JST.

The average sunshine duration in December in Shirokane, Japan, is 6.3h.

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 3.

The average daily maximum UV index in December in Shirokane, Japan, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

16.5°C

11.2°C

8.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.3km/h

14.5km/h

14.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

16.9

20.3

21.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Shirokane, Japan

Average high temperature in December: 11.2°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.9°C).

Average low temperature in December: 5.9°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 (2.8°C).

Average pressure in December
Shirokane, Japan

Average pressure in December: 1016.3mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December
Shirokane, Japan

Average wind speed in December: 12.9km/h

The windiest month (with the highest average wind speed) is April (15.3km/h).
The calmest month (with the lowest average wind speed) is November (12.1km/h).

Average humidity in December
Shirokane, Japan

Average humidity in December: 62%

The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (59%).

Average rainfall in December
Shirokane, Japan

Average rainfall in December: 21mm

The wettest month (with the highest rainfall) is September (54mm).
The driest month (with the least rainfall) is December (21mm).

Average rainfall days in December
Shirokane, Japan

Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Shirokane, Japan

Average snowfall in December: 0mm

The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Shirokane, Japan

Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (2.3 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
Shirokane, Japan

Average daylight in December: 9h and 48min

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: 6h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in December
Shirokane, Japan

Average sunshine days in December: 20.3 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is September (14.3 days).

Average UV index in December
Shirokane, Japan

Average UV index in December: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in December
Shirokane, Japan

Average cloud cover in December: 30

The months with the most cloud cover are June and October (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).

Average visibility in December
Shirokane, Japan

Average visibility in December: 10km

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