December weather forecast
Komagane, Japan

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Weather in December

The first month of the winter, December, is also a wintry month in Komagane, Japan, with an average temperature varying between -4.7°C (23.5°F) and 3.1°C (37.6°F).

Temperature

With the onset of December, Komagane experiences a modest temperature adjustment, with the average high-temperature receding from a cool 10.4°C (50.7°F) in November to a wintry 3.1°C (37.6°F). Throughout December, Komagane witnesses a consistent average low-temperature of -4.7°C (23.5°F).

Humidity

The average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 9.2 days. Throughout December, 50mm (1.97") of precipitation is accumulated. Throughout the year, in Komagane, there are 186.6 rainfall days, and 1159mm (45.63") of precipitation is accumulated.

Snowfall

Months with snowfall in Komagane are January through April, November and December. In December, in Komagane, it is snowing for 7.3 days. Throughout December, 87mm (3.43") of snow is accumulated. Throughout the year, there are 32.3 snowfall days, and 404mm (15.91") of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:39 and sunset at 16:34. On the last day of December, in Komagane, Japan, sunrise is at 06:57 and sunset at 16:44 JST.

Sunshine

In Komagane, the average sunshine in December is 6.4h.

UV index

The months with the lowest UV index in Komagane are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

How cold is it in Komagane in December?

In Komagane, 3.1°C (37.6°F) is the average high-temperature and -4.7°C (23.5°F) is the average low-temperature during December.

What is the average humidity in December in Komagane?

In December, the average relative humidity in Komagane, Japan, is 76%.

How much does it rain in Komagane in December?

In Komagane, Japan, in December, it is raining for 9.2 days, with typically 50mm (1.97") of accumulated precipitation.

How much does it snow in Komagane in December?

In Komagane, in December, snow falls for 7.3 days, with typically accumulated 87mm (3.43") of snow.

What is the month with the shortest days in Komagane?

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

How many hours of daylight does Komagane have in December?

In Komagane, the average day length in December is 9h and 47min.

What time are sunrise and sunset in December in Komagane?

In December, on the first day of the month, sunrise is at 06:39 and sunset at 16:34. On the last day of the month, sunrise is at 06:57 and sunset at 16:44 JST.

How many hours of sunshine does Komagane have in December?

In Komagane, Japan, the average sunshine duration in December is 6.4h.

What are the months with the lowest UV index in Komagane?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December in Komagane?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Komagane, Japan

Average temperature in December - Komagane, Japan
  • Average high temperature in December: 3.1°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (0.1°C).

  • Average low temperature in December: -4.7°C

The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is January (-9.3°C).

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Average pressure in December
Komagane, Japan

Average pressure in December - Komagane, Japan
  • Average pressure in December: 1017.7mbar

The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

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Average wind speed in December
Komagane, Japan

Average wind speed in December - Komagane, Japan
  • Average wind speed in December: 8.7km/h

The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).

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Average humidity in December
Komagane, Japan

Average humidity in December - Komagane, Japan
  • Average humidity in December: 76%

The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).

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Average rainfall in December
Komagane, Japan

Average rainfall in December - Komagane, Japan
  • Average rainfall in December: 50mm

The wettest month (with the highest rainfall) is July (236mm).
The driest month (with the least rainfall) is January (37mm).

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Average rainfall days in December
Komagane, Japan

Average rainfall days in December - Komagane, Japan
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is August (26.1 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
Komagane, Japan

Average snowfall in December - Komagane, Japan
  • Average snowfall in December: 87mm

The month with the highest snowfall is January (115mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in December
Komagane, Japan

Average snowfall days in December - Komagane, Japan
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Komagane, Japan

Average daylight in December / Average sunshine in December - Komagane, Japan
  • Average daylight in December: 9h and 5min

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 2min

The month with the most sunshine is May (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

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Average sunshine days in December
Komagane, Japan

Average sunshine days in December - Komagane, Japan
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are July and August (2.9 days).

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Average UV index in December
Komagane, Japan

Average UV index in December - Komagane, Japan
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Komagane, Japan

Average cloud cover in December - Komagane, Japan
  • Average cloud cover in December: 35

The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is November (Cloud cover 30).

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Average visibility in December
Komagane, Japan

Average visibility in December - Komagane, Japan
  • Average visibility in December: 8km

The months with the highest visibility are March, April and May (9km).
The months with the lowest visibility are July, August and September (7km).

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Komagane, Japan

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