December weather forecast
Nibuno, Japan

December

Weather in December

The first month of the winter, December, is also a frosty month in Nibuno, Japan, with an average temperature fluctuating between 4.4°C (39.9°F) and 9.5°C (49.1°F).

Temperature

The average high-temperature decreases in December, shifting from a refreshing 15°C (59°F) in November to a frosty 9.5°C (49.1°F). December nights experience a consistent temperature drop to a wintry 4.4°C (39.9°F).

Humidity

The average relative humidity in December is 77%.

Rainfall

In Nibuno, during December, the rain falls for 11.7 days and regularly aggregates up to 30mm (1.18") of precipitation. In Nibuno, during the entire year, the rain falls for 152.5 days and collects up to 495mm (19.49") of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows in Nibuno. Throughout December, in the average 1.8 snowfall days, it receives 4mm (0.16") of snow. In Nibuno, during the entire year, snow falls for 11.1 days and aggregates up to 28mm (1.1") of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:50 and sunset at 16:49. On the last day of December, sunrise is at 07:08 and sunset at 16:59 JST.

Sunshine

In December, the average sunshine is 5.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

What are the temperatures in Nibuno in December?
During December, Nibuno experiences an average high-temperature of 9.5°C (49.1°F) and a low-temperature of 4.4°C (39.9°F). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 36°C (96.8°F).
What is the average humidity in December?
In Nibuno, the average relative humidity in December is 77%.
How many days does it rain in December?
In Nibuno, in December, it is raining for 11.7 days, with typically 30mm (1.18") of accumulated precipitation.
When does it start snowing?
December is the first month it typically snows. Throughout December, in the average 1.8 snowfall days, it receives 4mm (0.16") 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.
How many hours of daylight does Nibuno have in December?
In Nibuno, the average day length in December is 9h and 52min.
When are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 06:50 and sunset at 16:49. On the last day of the month, sunrise is at 07:08 and sunset at 16:59 JST.
How long on average sun shines in December?
The average sunshine duration in December is 5.3h.
What is the month 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 December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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 - Nibuno, Japan
Average temperature in December
Nibuno, Japan
  • Average high temperature in December: 9.5°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (7.1°C).

  • Average low temperature in December: 4.4°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).

Average pressure in December - Nibuno, Japan
Average pressure in December
Nibuno, Japan
  • Average pressure in December: 1019.7mbar

The month with the highest atmospheric pressure is February (1020.2mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).

Average wind speed in December - Nibuno, Japan
Average wind speed in December
Nibuno, Japan
  • Average wind speed in December: 13.4km/h

The windiest month (with the highest average wind speed) is January (13.8km/h).
The calmest month (with the lowest average wind speed) is June (8.5km/h).

Average humidity in December - Nibuno, Japan
Average humidity in December
Nibuno, Japan
  • Average humidity in December: 77%

The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are March and April (73%).

Average rainfall in December - Nibuno, Japan
Average rainfall in December
Nibuno, Japan
  • Average rainfall in December: 30mm

The wettest month (with the highest rainfall) is July (98mm).
The driest month (with the least rainfall) is January (13mm).

Average rainfall days in December - Nibuno, Japan
Average rainfall days in December
Nibuno, Japan
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (8.6 days).

Average snowfall in December - Nibuno, Japan
Average snowfall in December
Nibuno, Japan
  • Average snowfall in December: 4mm

The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December - Nibuno, Japan
Average snowfall days in December
Nibuno, Japan
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is January (4.3 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 - Nibuno, Japan
Average daylight in December /
Average sunshine in December
Nibuno, 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 54min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December - Nibuno, Japan
Average sunshine days in December
Nibuno, Japan
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is May (19.9 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in December - Nibuno, Japan
Average UV index in December
Nibuno, 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 - Nibuno, Japan
Average cloud cover in December
Nibuno, Japan
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are August and November (Cloud cover 33).

Average visibility in December - Nibuno, Japan
Average visibility in December
Nibuno, Japan
  • Average visibility in December: 10km

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

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