December weather forecast
Seba, Japan

December

Weather in December

The first month of the winter, December, is also a wintry month in Seba, Japan, with an average temperature fluctuating between 3.3°C (37.9°F) and -4.4°C (24.1°F).

Temperature

In Seba, the average high-temperature in December decreases from a fresh 10.3°C (50.5°F) in November to a wintry 3.3°C (37.9°F). In December, the recorded average low-temperature in Seba is a subzero cold -4.4°C (24.1°F).

Humidity

In December, the average relative humidity in Seba, Japan, is 77%.

Rainfall

In Seba, during December, the rain falls for 12.7 days and regularly aggregates up to 58mm (2.28") of precipitation. Throughout the year, in Seba, there are 174.6 rainfall days, and 944mm (37.17") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Seba, in December, snow falls for 16.3 days, with typically accumulated 227mm (8.94") of snow. Throughout the year, there are 63 snowfall days, and 1018mm (40.08") of snow is accumulated.

Daylight

December has the shortest days of the year in Seba, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 06:40 and sunset at 16:34. On the last day of the month, sunrise is at 06:58 and sunset at 16:43 JST.

Sunshine

The average sunshine in December in Seba is 6.4h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. When the Sun is at its strongest around midday, find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

How cold does it get in Seba in December?
In December, in Seba, the average high-temperature is 3.3°C (37.9°F), and the average low-temperature is -4.4°C (24.1°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 31°C (87.8°F).
What is the average humidity in December in Seba?
In Seba, Japan, the average relative humidity in December is 77%.
How many days does it rain in December in Seba?
In December, in Seba, the rain falls for 12.7 days. Throughout December, 58mm (2.28") of precipitation is accumulated.
How many days does it snow in December in Seba?
In December, in Seba, Japan, it is snowing for 16.3 days. Throughout December, 227mm (8.94") of snow is accumulated.
What is the month with the shortest days in Seba?
December has the shortest days of the year in Seba, Japan, with an average of 9h and 48min of daylight.
How many hours of daylight does Seba have in December?
The average day length in December in Seba is 9h and 46min.
What time are sunrise and sunset in December in Seba?
In December, on the first day of the month, sunrise is at 06:40 and sunset at 16:34. On the last day of the month, in Seba, sunrise is at 06:58 and sunset at 16:43 JST.
How many hours of sunshine does Seba have in December?
In Seba, Japan, the average sunshine duration in December is 6.4h.
When is the lowest UV index in Seba?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Seba, Japan.
What is the UV index intensity in December in Seba?
In Seba, Japan, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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
Seba, Japan
  • Average high temperature in December: 3.3°C

The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (0.1°C).

  • Average low temperature in December: -4.4°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is January (-9.2°C).

Average pressure in December
Seba, Japan
  • Average pressure in December: 1017.8mbar

The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December
Seba, Japan
  • Average wind speed in December: 8.9km/h

The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).

Average humidity in December
Seba, Japan
  • Average humidity in December: 77%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is May (70%).

Average rainfall in December
Seba, Japan
  • Average rainfall in December: 58mm

The wettest month (with the highest rainfall) is July (160mm).
The driest month (with the least rainfall) is November (43mm).

Average rainfall days in December
Seba, Japan
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in December
Seba, Japan
  • Average snowfall in December: 227mm

The month with the highest snowfall is January (287mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Seba, Japan
  • Average snowfall days in December: 16.3 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

The month with the longest days is June (Average daylight: 14h and 36min).
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 36min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).

Average sunshine days in December
Seba, Japan
  • Average sunshine days in December: 9 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in December
Seba, Japan
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Seba, Japan
  • Average cloud cover in December: 36

The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is November (Cloud cover 29).

Average visibility in December
Seba, 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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