December weather forecast
Toyooka, Japan

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Weather in December

The first month of the winter, December, is still a chilly month in Toyooka, Japan, with temperature in the range of an average low of 3.5°C (38.3°F) and an average high of 8°C (46.4°F).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a mild 13.7°C (56.7°F) in November to a chilly 8°C (46.4°F). Toyooka records a negligible downturn from daytime temperatures, averaging a low of 3.5°C (38.3°F) in the month of December.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Toyooka, during December, the rain falls for 20.9 days and regularly aggregates up to 98mm (3.86") of precipitation. In Toyooka, Japan, during the entire year, the rain falls for 217.3 days and collects up to 1391mm (54.76") of precipitation.

Snowfall

January through April and December are months with snowfall in Toyooka. December is the first month it typically snows in Toyooka, Japan. Throughout December, in the average 8 snowfall days, it receives 149mm (5.87") of snow. Throughout the year, there are 43.1 snowfall days, and 737mm (29.02") of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:51 and sunset at 16:47. On the last day of December, sunrise is at 07:09 and sunset at 16:57 JST.

Sunshine

In December, the average sunshine in Toyooka is 3.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Toyooka. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the usual temperature for Toyooka in December?

The average high-temperature, in December, in Toyooka, is 8°C (46.4°F), while the average low-temperature is 3.5°C (38.3°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 37°C (98.6°F).

What is the average humidity in December in Toyooka?

In December, the average relative humidity in Toyooka is 82%.

How many days does it rain in December in Toyooka?

In December, the rain falls for 20.9 days. Throughout December, 98mm (3.86") of precipitation is accumulated.

When does it start to snow in Toyooka?

December is the first month it typically snows. Throughout December, in the average 8 snowfall days, it receives 149mm (5.87") of snow.

What is the month with the shortest days in Toyooka?

December has the shortest days of the year in Toyooka, with an average of 9h and 48min of daylight.

How many hours of daylight does Toyooka have in December?

The average day length in December in Toyooka, Japan, is 9h and 49min.

When are sunrise and sunset in December in Toyooka?

In December, on the first day of the month, sunrise is at 06:51 and sunset at 16:47. On the last day of the month, sunrise is at 07:09 and sunset at 16:57 JST.

How long on average sun shines in December in Toyooka?

In Toyooka, the average sunshine duration in December is 3.2h.

What are the months with the lowest UV index in Toyooka?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

How high is the UV index in December in Toyooka?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Toyooka, Japan

Average temperature in December - Toyooka, Japan
  • Average high temperature in December: 8°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 (5.5°C).

  • Average low temperature in December: 3.5°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).

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Average pressure in December
Toyooka, Japan

Average pressure in December - Toyooka, Japan
  • Average pressure in December: 1019.4mbar

The month with the highest atmospheric pressure is February (1020.2mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).

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Average wind speed in December
Toyooka, Japan

Average wind speed in December - Toyooka, Japan
  • Average wind speed in December: 14.1km/h

The windiest months (with the highest average wind speed) are January and December (14.1km/h).
The calmest months (with the lowest average wind speed) are June and August (7.7km/h).

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Average humidity in December
Toyooka, Japan

Average humidity in December - Toyooka, Japan
  • Average humidity in December: 82%

The month with the highest relative humidity is July (87%).
The months with the lowest relative humidity are April and May (77%).

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Average rainfall in December
Toyooka, Japan

Average rainfall in December - Toyooka, Japan
  • Average rainfall in December: 98mm

The wettest month (with the highest rainfall) is July (203mm).
The driest month (with the least rainfall) is February (67mm).

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Average rainfall days in December
Toyooka, Japan

Average rainfall days in December - Toyooka, Japan
  • Average rainfall days in December: 20.9 days

The month with the highest number of rainy days is July (24.4 days).
The month with the least rainy days is February (12.7 days).

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Average snowfall in December
Toyooka, Japan

Average snowfall in December - Toyooka, Japan
  • Average snowfall in December: 149mm

The month with the highest snowfall is January (281mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

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Average snowfall days in December
Toyooka, Japan

Average snowfall days in December - Toyooka, Japan
  • Average snowfall days in December: 8 days

The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

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Average sunshine days in December
Toyooka, Japan

Average sunshine days in December - Toyooka, Japan
  • Average sunshine days in December: 5 days

The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (4.3 days).

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Average UV index in December
Toyooka, Japan

Average UV index in December - Toyooka, Japan
  • Average UV index in December: 2

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

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Average cloud cover in December
Toyooka, Japan

Average cloud cover in December - Toyooka, Japan
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is May (Cloud cover 39).

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Average visibility in December
Toyooka, Japan

Average visibility in December - Toyooka, Japan
  • Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, October, November and December (9km).
The months with the lowest visibility are January, June, July, August and September (8km).

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Toyooka, Japan

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