December weather forecastBibai, Japan

December

Weather in December

December, the first month of the winter in Bibai, is still a freezing cold month, with an average temperature varying between -6.5°C (20.3°F) and -1.3°C (29.7°F).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's icy 5.5°C (41.9°F) to a subzero cold -1.3°C (29.7°F). Throughout the month of December, Bibai expects an average low of -6.5°C (20.3°F).

Humidity

In December, the average relative humidity in Bibai is 88%.

Rainfall

In December, the rain falls for 8.7 days. Throughout December, 73mm (2.87") of precipitation is accumulated. Throughout the year, there are 162.3 rainfall days, and 769mm (30.28") of precipitation is accumulated.

Snowfall

Months with snowfall in Bibai, Japan, are January through May, October through December. December is the month with the most snowfall. Snow falls for 25.1 days and accumulates 394mm (15.51") of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Bibai.
On the first day of the month, sunrise is at 06:45 and sunset at 15:58. On the last day of December, in Bibai, sunrise is at 07:04 and sunset at 16:06 JST.

Sunshine

In December, the average sunshine in Bibai is 2.7h.

UV index

January, February, 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 unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Opt for tightly woven and loose clothing to enhance protection from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

The high-temperature, in December, in Bibai, is -1.3°C (29.7°F), while the low-temperature averages to -6.5°C (20.3°F).

The average relative humidity in December in Bibai, Japan, is 88%.

In December, in Bibai, Japan, the rain falls for 8.7 days. Throughout December, 73mm (2.87") of precipitation is accumulated.

The month with the most snowfall in Bibai is December, when snow falls for 25.1 days and typically aggregates up to 394mm (15.51") of snow.

In Bibai, Japan, during December, snow falls for 25.1 days and regularly aggregates up to 394mm (15.51") of snow.

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

In Bibai, Japan, the average day length in December is 9h and 2min.

In December, on the first day of the month, sunrise is at 06:45 and sunset at 15:58. On the last day of the month, sunrise is at 07:04 and sunset at 16:06 JST.

The average sunshine duration in December in Bibai is 2.7h.

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

In December, the average daily maximum UV index in Bibai, Japan, is 1. 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
Bibai, Japan

  • Average high temperature in December: -1.3°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (-3.7°C).

  • Average low temperature in December: -6.5°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).

Average pressure in December
Bibai, Japan

  • Average pressure in December: 1012.8mbar

The month with the highest atmospheric pressure is November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.7mbar).

Average wind speed in December
Bibai, Japan

  • Average wind speed in December: 11.8km/h

The windiest month (with the highest average wind speed) is April (12.1km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in December
Bibai, Japan

  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (77%).

Average rainfall in December
Bibai, Japan

  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is August (118mm).
The driest months (with the least rainfall) are February and April (44mm).

Average rainfall days in December
Bibai, Japan

  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in December
Bibai, Japan

  • Average snowfall in December: 394mm

The month with the highest snowfall is December (394mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Bibai, Japan

  • Average snowfall days in December: 25.1 days

The month with the highest number of snowfall days is January (25.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 2h and 42min

The month with the most sunshine is May (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in December
Bibai, Japan

  • Average sunshine days in December: 3 days

The month with the most sunshine days is May (13.8 days).
The month with the least sunshine days is December (3 days).

Average UV index in December
Bibai, 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, November and December (UV index 1).

Average cloud cover in December
Bibai, Japan

  • Average cloud cover in December: 73

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is September (Cloud cover 41).

Average visibility in December
Bibai, 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).