Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Hironishi in December demonstrates a small temperature transition, adjusting from an average high of a comfortable 16.2°C (61.2°F) in November to a cool 11°C (51.8°F). Hironishi, during the December nights, maintains an average temperature of 7.3°C (45.1°F), closely aligned with its daytime readings.Humidity
In December, the average relative humidity is 71%.Rainfall
In Hironishi, during December, the rain falls for 16.3 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, in Hironishi, there are 174.8 rainfall days, and 674mm (26.54") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Hironishi, Japan. December is the first month it typically snows. Throughout December, in the average 1.5 snowfall days, it receives 6mm (0.24") of snow. Throughout the year, in Hironishi, there are 9 snowfall days, and 36mm (1.42") of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Hironishi.On the first day of December in Hironishi, sunrise is at 06:46 and sunset at 16:49. On the last day of the month, sunrise is at 07:04 and sunset at 16:59 JST.
Sunshine
In December, the average sunshine in Hironishi is 5.3h.UV index
The months with the lowest UV index in Hironishi are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the average December temperature in Hironishi?
What is the average humidity in December in Hironishi?
How many days does it rain in December in Hironishi?
When does it start snowing in Hironishi?
What is the month with the shortest days in Hironishi?
What is the average length of the day in December in Hironishi?
When is the sunrise / sunset in December in Hironishi?
How many hours of sunshine does Hironishi have in December?
What are the months with the lowest UV index in Hironishi?
What is the UV index reading in December in Hironishi?
Average temperature in December
Hironishi, Japan
- Average high temperature in December: 11°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 (8.7°C).
- Average low temperature in December: 7.3°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (4.8°C).
Average pressure in December
Hironishi, Japan
- Average pressure in December: 1019.4mbar
The months with the highest atmospheric pressure are January and February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in December
Hironishi, Japan
- Average wind speed in December: 18.6km/h
The windiest month (with the highest average wind speed) is January (19.1km/h).
The calmest month (with the lowest average wind speed) is June (11km/h).
Average humidity in December
Hironishi, Japan
- Average humidity in December: 71%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (70%).
Average rainfall in December
Hironishi, Japan
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is July (111mm).
The driest months (with the least rainfall) are January and February (30mm).
Average rainfall days in December
Hironishi, Japan
- Average rainfall days in December: 16.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is May (10.8 days).
Average snowfall in December
Hironishi, Japan
- Average snowfall in December: 6mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Hironishi, Japan
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Hironishi, 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Hironishi, Japan
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is May (18.1 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in December
Hironishi, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Hironishi, Japan
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Hironishi, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Hironishi, Japan
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