December weather forecast
Asakayamacho, Japan

December

Weather in December

December, the first month of the winter in Asakayamacho, is still a cool month, with an average temperature ranging between max 10°C (50°F) and min 4.7°C (40.5°F).

Temperature

Setting in of December comes with a decrease in the average high-temperature, moving from a comfortable 16°C (60.8°F) in November to a fresh 10°C (50°F). During December, the nighttime temperature averages to a wintry 4.7°C (40.5°F).

Humidity

In December, the average relative humidity is 74%.

Rainfall

In December, in Asakayamacho, the rain falls for 14.3 days. Throughout December, 26mm (1.02") of precipitation is accumulated. In Asakayamacho, during the entire year, the rain falls for 149 days and collects up to 436mm (17.17") of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 3.1 snowfall days, it receives 18mm (0.71") of snow. In Asakayamacho, Japan, during the entire year, snow falls for 14.9 days and aggregates up to 82mm (3.23") of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of December, 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.

Sunshine

In December, the average sunshine is 5.1h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 2 in December translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the usual temperature for Asakayamacho in December?
In December, in Asakayamacho, the average high-temperature is 10°C (50°F), and the average low-temperature is 4.7°C (40.5°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 30°C (86°F).
What is the average humidity in December?
The average relative humidity in December is 74%.
How many days does it rain in December?
In Asakayamacho, in December, during 14.3 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
When does it start to snow?
December is the first month it typically snows. Throughout December, in the average 3.1 snowfall days, it receives 18mm (0.71") of snow.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 54min of daylight.
What is the average length of the day in December?
In Asakayamacho, the average day length in December is 9h and 53min.
What time are sunrise and sunset in December?
On the first day of December, 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 many hours of sunshine does Asakayamacho have in December?
The average sunshine duration in December is 5.1h.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
How high is the UV index in December?
In Asakayamacho, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
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
Asakayamacho, Japan
  • Average high temperature in December: 10°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in December: 4.7°C

The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).

Average pressure in December
Asakayamacho, Japan
  • Average pressure in December: 1019.3mbar

The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).

Average wind speed in December
Asakayamacho, Japan
  • Average wind speed in December: 10.3km/h

The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest month (with the lowest average wind speed) is June (7.8km/h).

Average humidity in December
Asakayamacho, Japan
  • Average humidity in December: 74%

The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is May (69%).

Average rainfall in December
Asakayamacho, Japan
  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is July (79mm).
The driest month (with the least rainfall) is November (20mm).

Average rainfall days in December
Asakayamacho, Japan
  • Average rainfall days in December: 14.3 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is May (8.7 days).

Average snowfall in December
Asakayamacho, Japan
  • Average snowfall in December: 18mm

The month with the highest snowfall is January (35mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Asakayamacho, Japan
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (6 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
Asakayamacho, 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 and February (Average sunshine: 4h and 48min).

Average sunshine days in December
Asakayamacho, Japan
  • Average sunshine days in December: 11.1 days

The month with the most sunshine days is May (20 days).
The month with the least sunshine days is January (10.8 days).

Average UV index in December
Asakayamacho, 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
Asakayamacho, Japan
  • Average cloud cover in December: 43

The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Asakayamacho, Japan
  • Average visibility in December: 10km

The months with the highest visibility are February, March, November and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September and October (9km).

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