December weather forecast
Morooka, Japan

December

Weather in December

The first month of the winter, December, is still a cool month in Morooka, Japan, with an average temperature varying between 5.8°C (42.4°F) and 10.5°C (50.9°F).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from an enjoyable 16.4°C (61.5°F) in November to a fresh 10.5°C (50.9°F). The temperature during December sees a subtle transition from day to night, averaging a low of 5.8°C (42.4°F).

Humidity

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

Rainfall

In Morooka, in December, during 17.3 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In Morooka, during the entire year, the rain falls for 178 days and collects up to 1063mm (41.85") of precipitation.

Snowfall

January through March and December are months with snowfall in Morooka. December is the first month it typically snows in Morooka. Throughout December, in the average 2.5 snowfall days, it receives 12mm (0.47") of snow. In Morooka, during the entire year, snow falls for 10.4 days and aggregates up to 48mm (1.89") of snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:04 and sunset at 17:10. On the last day of December, sunrise is at 07:22 and sunset at 17:20 JST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

The months with the lowest UV index in Morooka, Japan, are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

What are December temperatures in Morooka?
December temperatures vary between a 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', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 39°C (102.2°F).
What is the average humidity in December in Morooka?
In December, the average relative humidity is 73%.
How many days does it rain in December in Morooka?
In Morooka, Japan, in December, it is raining for 17.3 days, with typically 70mm (2.76") of accumulated precipitation.
When does it start to snow in Morooka?
December is the first month it typically snows in Morooka. 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 Morooka?
The month with the shortest days in Morooka is December, with an average of 10h and 0min of daylight.
How many hours of daylight does Morooka have in December?
In December, the average day length is 9h and 58min.
When is the sunrise / sunset in December in Morooka?
In December, on the first day of the month, sunrise is at 07:04 and sunset at 17:10. On the last day of the month, in Morooka, sunrise is at 07:22 and sunset at 17:20 JST.
How many hours of sunshine does Morooka have in December?
The average sunshine duration in December in Morooka is 4.3h.
When is the lowest UV index in Morooka?
The months with the lowest UV index in Morooka, Japan, are January and December, with an average maximum UV index of 2.
How high is the UV index in December in Morooka?
In December, the average daily maximum UV index in Morooka, Japan, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe 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 - Morooka, Japan
Average temperature in December
Morooka, 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 - Morooka, Japan
Average pressure in December
Morooka, 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 - Morooka, Japan
Average wind speed in December
Morooka, 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 - Morooka, Japan
Average humidity in December
Morooka, 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 - Morooka, Japan
Average rainfall in December
Morooka, 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 - Morooka, Japan
Average rainfall days in December
Morooka, 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 - Morooka, Japan
Average snowfall in December
Morooka, 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 - Morooka, Japan
Average snowfall days in December
Morooka, 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 - Morooka, Japan
Average daylight in December /
Average sunshine in December
Morooka, 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 - Morooka, Japan
Average sunshine days in December
Morooka, 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 - Morooka, Japan
Average UV index in December
Morooka, 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 - Morooka, Japan
Average cloud cover in December
Morooka, 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 - Morooka, Japan
Average visibility in December
Morooka, Japan
  • Average visibility in December: 10km

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

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