December weather forecast
Tomota, Japan

December

Weather in December

December, the first month of the winter in Tomota, is still a chilly month, with an average temperature ranging between min 2.5°C (36.5°F) and max 8.4°C (47.1°F).

Temperature

Tomota in December experiences a subtle temperature decline, with average high-temperatures reducing from a moderate 14.5°C (58.1°F) in November to a frosty 8.4°C (47.1°F). The average temperature during December nights dips to a wintry 2.5°C (36.5°F).

Humidity

The average relative humidity in December is 81%.

Rainfall

In Tomota, during December, the rain falls for 14 days and regularly aggregates up to 64mm (2.52") of precipitation. In Tomota, during the entire year, the rain falls for 174 days and collects up to 1174mm (46.22") of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 2.5 snowfall days, it receives 11mm (0.43") of snow. Throughout the year, there are 12.2 snowfall days, and 68mm (2.68") of snow is accumulated.

Daylight

The month with the shortest days in Tomota is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 06:59 and sunset at 17:01. On the last day of the month, sunrise is at 07:17 and sunset at 17:11 JST.

Sunshine

In December, the average sunshine is 5h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the usual temperature for Tomota in December?
The high-temperature during December is 8.4°C (47.1°F) and the low-temperature is 2.5°C (36.5°F). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 36°C (96.8°F).
What is the average humidity in December?
In Tomota, the average relative humidity in December is 81%.
How much does it rain in December?
In Tomota, in December, it is raining for 14 days, with typically 64mm (2.52") of accumulated precipitation.
When does it start snowing?
December is the first month it typically snows. Throughout December, in the average 2.5 snowfall days, it receives 11mm (0.43") 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.
What is the average length of the day in December?
In Tomota, the average day length in December is 9h and 55min.
When is the sunrise / sunset in December?
In December, on the first day of the month, sunrise is at 06:59 and sunset at 17:01. On the last day of the month, sunrise is at 07:17 and sunset at 17:11 JST.
How many hours of sunshine does Tomota have in December?
In December, the average sunshine duration is 5h.
When is the lowest UV index?
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the UV index reading in December?
The average daily maximum UV index in December in Tomota, Japan, is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to 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
Tomota, Japan
  • Average high temperature in December: 8.4°C

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (6.1°C).

  • Average low temperature in December: 2.5°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).

Average pressure in December
Tomota, Japan
  • Average pressure in December: 1020.7mbar

The month with the highest atmospheric pressure is January (1021.2mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).

Average wind speed in December
Tomota, Japan
  • Average wind speed in December: 8.6km/h

The windiest month (with the highest average wind speed) is January (8.9km/h).
The calmest month (with the lowest average wind speed) is June (5.5km/h).

Average humidity in December
Tomota, Japan
  • Average humidity in December: 81%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is May (75%).

Average rainfall in December
Tomota, Japan
  • Average rainfall in December: 64mm

The wettest month (with the highest rainfall) is July (226mm).
The driest month (with the least rainfall) is November (44mm).

Average rainfall days in December
Tomota, Japan
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in December
Tomota, Japan
  • Average snowfall in December: 11mm

The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Tomota, Japan
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in December
Tomota, Japan
  • Average sunshine days in December: 14.1 days

The month with the most sunshine days is May (17.7 days).
The month with the least sunshine days is July (8 days).

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Tomota, Japan
  • Average cloud cover in December: 45

The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are October and November (Cloud cover 35).

Average visibility in December
Tomota, Japan
  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The month with the lowest visibility is July (7km).

englishespañol中文
Share