December weather forecastAshibetsu, Japan

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Ashibetsu, Japan, with an average temperature fluctuating between -7°C (19.4°F) and -1.7°C (28.9°F).

Temperature

Transition into December marks a drop in the average high-temperature, moving from a cold 4.6°C (40.3°F) in November to a subzero cold -1.7°C (28.9°F). December nights are marked by an average temperature drop to a still freezing cold -7°C (19.4°F).

Humidity

In December, the average relative humidity is 91%.

Rainfall

In December, in Ashibetsu, Japan, the rain falls for 4.4 days. Throughout December, 36mm (1.42") of precipitation is accumulated. Throughout the year, there are 120.7 rainfall days, and 404mm (15.91") of precipitation is accumulated.

Snowfall

Months with snowfall in Ashibetsu are January through April, October through December. The month with the most snowfall in Ashibetsu is December, when snow falls for 22 days and typically aggregates up to 227mm (8.94") of snow.

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 Ashibetsu, sunrise is at 06:44 and sunset at 15:56. On the last day of the month, sunrise is at 07:04 and sunset at 16:04 JST.

Sunshine

The average sunshine in December is 1.7h.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

In December, the average high-temperature and low-temperature are -1.7°C (28.9°F) and -7°C (19.4°F) respectively.

In Ashibetsu, Japan, the average relative humidity in December is 91%.

In Ashibetsu, Japan, during December, the rain falls for 4.4 days and regularly aggregates up to 36mm (1.42") of precipitation.

December is the month with the most snowfall. Snow falls for 22 days and accumulates 227mm (8.94") of snow.

In December, in Ashibetsu, it is snowing for 22 days. Throughout December, 227mm (8.94") of snow is accumulated.

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

In December, the average day length in Ashibetsu, Japan, is 9h and 1min.

In December, on the first day of the month, sunrise is at 06:44 and sunset at 15:56. On the last day of the month, in Ashibetsu, Japan, sunrise is at 07:04 and sunset at 16:04 JST.

The average sunshine duration in December in Ashibetsu, Japan, is 1.7h.

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

In Ashibetsu, Japan, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Ashibetsu, Japan

  • Average high temperature in December: -1.7°C

The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (-4.1°C).

  • Average low temperature in December: -7°C

The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).

Average pressure in December
Ashibetsu, Japan

  • Average pressure in December: 1012.4mbar

The month with the highest atmospheric pressure is November (1015.7mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).

Average wind speed in December
Ashibetsu, Japan

  • Average wind speed in December: 10.8km/h

The windiest months (with the highest average wind speed) are April and December (10.8km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).

Average humidity in December
Ashibetsu, Japan

  • Average humidity in December: 91%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (77%).

Average rainfall in December
Ashibetsu, Japan

  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is August (69mm).
The driest month (with the least rainfall) is February (18mm).

Average rainfall days in December
Ashibetsu, Japan

  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is August (17 days).
The month with the least rainy days is January (2 days).

Average snowfall in December
Ashibetsu, Japan

  • Average snowfall in December: 227mm

The month with the highest snowfall is December (227mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Ashibetsu, Japan

  • Average snowfall days in December: 22 days

The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ashibetsu, 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: 1h and 42min

The month with the most sunshine is May (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).

Average sunshine days in December
Ashibetsu, Japan

  • Average sunshine days in December: 7.8 days

The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (7.8 days).

Average UV index in December
Ashibetsu, Japan

  • Average UV index in December: 1

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 1).

Average cloud cover in December
Ashibetsu, Japan

  • Average cloud cover in December: 83

The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is September (Cloud cover 46).

Average visibility in December
Ashibetsu, Japan

  • Average visibility in December: 7km

The months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).