December weather forecastTsubetsu, Japan

December

Weather in December

December, the first month of the winter in Tsubetsu, is still a freezing cold month, with temperature in the range of an average high of -1.7°C (28.9°F) and an average low of -7.7°C (18.1°F).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a cold 5.2°C (41.4°F) in November to a freezing cold -1.7°C (28.9°F). Tsubetsu cools down to an average low-temperature of -7.7°C (18.1°F) throughout the month of December.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Tsubetsu, during December, the rain falls for 8.8 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 163 rainfall days, and 723mm (28.46") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Tsubetsu. In Tsubetsu, in December, during 20.1 snowfall days, 287mm (11.3") of snow is typically accumulated. Throughout the year, in Tsubetsu, there are 107.3 snowfall days, and 1396mm (54.96") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of December in Tsubetsu, sunrise is at 06:37 and sunset at 15:48. On the last day of the month, sunrise is at 06:57 and sunset at 15:56 JST.

Sunshine

In Tsubetsu, the average sunshine in December is 4.3h.

UV index

January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Tsubetsu. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

During December, Tsubetsu experiences an average high-temperature of -1.7°C (28.9°F) and a low-temperature of -7.7°C (18.1°F).

The average relative humidity in December in Tsubetsu, Japan, is 84%.

In December, in Tsubetsu, the rain falls for 8.8 days. Throughout December, 53mm (2.09") of precipitation is accumulated.

In Tsubetsu, during December, snow falls for 20.1 days and regularly aggregates up to 287mm (11.3") of snow.

December has the shortest days of the year in Tsubetsu, Japan, with an average of 9h and 0min of daylight.

In Tsubetsu, the average day length in December is 8h and 59min.

On the first day of December in Tsubetsu, sunrise is at 06:37 and sunset at 15:48. On the last day of the month, sunrise is at 06:57 and sunset at 15:56 JST.

In Tsubetsu, the average sunshine duration in December is 4.3h.

January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Tsubetsu.

The average daily maximum UV index in December in Tsubetsu, Japan, is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Tsubetsu, Japan

  • Average high temperature in December: -1.7°C

The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in December: -7.7°C

The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (-12.3°C).

Average pressure in December
Tsubetsu, Japan

  • Average pressure in December: 1011.5mbar

The month with the highest atmospheric pressure is October (1015.4mbar).
The month with the lowest atmospheric pressure is July (1009.1mbar).

Average wind speed in December
Tsubetsu, Japan

  • Average wind speed in December: 10km/h

The windiest month (with the highest average wind speed) is April (10.1km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).

Average humidity in December
Tsubetsu, Japan

  • Average humidity in December: 84%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (76%).

Average rainfall in December
Tsubetsu, Japan

  • Average rainfall in December: 53mm

The wettest month (with the highest rainfall) is August (111mm).
The driest month (with the least rainfall) is February (35mm).

Average rainfall days in December
Tsubetsu, Japan

  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in December
Tsubetsu, Japan

  • Average snowfall in December: 287mm

The month with the highest snowfall is January (310mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Tsubetsu, Japan

  • Average snowfall days in December: 20.1 days

The month with the highest number of snowfall days is January (23.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 18min

The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).

Average sunshine days in December
Tsubetsu, Japan

  • Average sunshine days in December: 9.6 days

The month with the most sunshine days is October (13.3 days).
The month with the least sunshine days is March (6.3 days).

Average UV index in December
Tsubetsu, Japan

  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 1).

Average cloud cover in December
Tsubetsu, Japan

  • Average cloud cover in December: 55

The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is October (Cloud cover 39).

Average visibility in December
Tsubetsu, Japan

  • Average visibility in December: 8km

The months with the highest visibility are October and November (9km).
The month with the lowest visibility is February (6km).