December weather forecast
Imajuku, Japan

December

Weather in December

December, the first month of the winter in Imajuku, is also a fresh month, with an average temperature varying between 10.5°C (50.9°F) and 5.8°C (42.4°F).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a comfortable 16.4°C (61.5°F) to a fresh 10.5°C (50.9°F). Imajuku marks an average drop to an icy 5.8°C (42.4°F) during nighttime in December, following the high of the day.

Humidity

In Imajuku, the average relative humidity in December is 73%.

Rainfall

In Imajuku, Japan, during December, the rain falls for 17.3 days and regularly aggregates up to 70mm (2.76") of precipitation. Throughout the year, in Imajuku, there are 178.4 rainfall days, and 1077mm (42.4") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows in Imajuku. Throughout December, in the average 2.5 snowfall days, it receives 12mm (0.47") of snow. Throughout the year, in Imajuku, Japan, there are 10.4 snowfall days, and 48mm (1.89") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 07:05 and sunset at 17:10. On the last day of the month, sunrise is at 07:23 and sunset at 17:20 JST.

Sunshine

The average sunshine in December in Imajuku is 4.3h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

What are December temperatures in Imajuku?
During December, Imajuku experiences an average high-temperature of 10.5°C (50.9°F) and a low-temperature of 5.8°C (42.4°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 39°C (102.2°F).
What is the average humidity in December in Imajuku?
The average relative humidity in December in Imajuku, Japan, is 73%.
How many days does it rain in December in Imajuku?
In Imajuku, Japan, in December, it is raining for 17.3 days, with typically 70mm (2.76") of accumulated precipitation.
When does it start snowing in Imajuku?
December is the first month it typically snows in Imajuku, Japan. Throughout December, in the average 2.5 snowfall days, it receives 12mm (0.47") of snow.
What is the month with the shortest days in Imajuku?
With an average of 10h and 0min of daylight, December has the shortest days of the year.
How many hours of daylight does Imajuku have in December?
In December, the average day length is 9h and 58min.
When is the sunrise / sunset in December in Imajuku?
On the first day of December in Imajuku, sunrise is at 07:05 and sunset at 17:10. On the last day of the month, sunrise is at 07:23 and sunset at 17:20 JST.
How long on average sun shines in December in Imajuku?
In Imajuku, the average sunshine duration in December is 4.3h.
What is the month with the lowest UV index in Imajuku?
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Imajuku, Japan.
How high is the UV index in December in Imajuku?
In Imajuku, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Imajuku, Japan
  • Average high temperature in December: 10.5°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in December: 5.8°C

The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).

Average pressure in December
Imajuku, Japan
  • Average pressure in December: 1021.5mbar

The month with the highest atmospheric pressure is January (1022.1mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).

Average wind speed in December
Imajuku, Japan
  • Average wind speed in December: 14.1km/h

The windiest month (with the highest average wind speed) is January (14.2km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).

Average humidity in December
Imajuku, Japan
  • Average humidity in December: 73%

The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (72%).

Average rainfall in December
Imajuku, Japan
  • Average rainfall in December: 70mm

The wettest month (with the highest rainfall) is July (193mm).
The driest month (with the least rainfall) is January (52mm).

Average rainfall days in December
Imajuku, Japan
  • Average rainfall days in December: 17.3 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is May (10.8 days).

Average snowfall in December
Imajuku, Japan
  • Average snowfall in December: 12mm

The month with the highest snowfall is January (22mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Imajuku, Japan
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (4.9 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
Imajuku, Japan
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Imajuku, Japan
  • Average sunshine days in December: 9.8 days

The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is July (8.4 days).

Average UV index in December
Imajuku, 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 and December (UV index 2).

Average cloud cover in December
Imajuku, Japan
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 34).

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

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

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