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
The beginning of December marks a decrease in the average high-temperature, transitioning from a moderate 15.8°C (60.4°F) in November to a fresh 10.1°C (50.2°F). During the month of December, Shiraoka's nighttime temperature lowers to an average of 3.9°C (39°F).Humidity
In December, the average relative humidity in Shiraoka, Japan, is 62%.Rainfall
December is the month with the least rainfall in Shiraoka, Japan. Rain falls for 7.2 days and accumulates 26mm (1.02") of precipitation.Snowfall
Months with snowfall in Shiraoka are January through March, November and December. In Shiraoka, in December, during 0.1 snowfall days, 1mm (0.04") of snow is typically accumulated. Throughout the year, in Shiraoka, there are 4.2 snowfall days, and 66mm (2.6") of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Shiraoka.On the first day of the month, sunrise is at 06:33 and sunset at 16:27. On the last day of December, in Shiraoka, sunrise is at 06:51 and sunset at 16:36 JST.
Sunshine
In December, the average sunshine in Shiraoka is 6.4h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What is the average December temperature in Shiraoka?
What is the average humidity in December in Shiraoka?
What is the driest month in Shiraoka?
How much does it rain in Shiraoka in December?
How much does it snow in Shiraoka in December?
What is the month with the shortest days in Shiraoka?
What is the average length of the day in December in Shiraoka?
What time are sunrise and sunset in December in Shiraoka?
How long on average sun shines in December in Shiraoka?
What are the months with the lowest UV index in Shiraoka?
How high is the UV index in December in Shiraoka?
Average temperature in December
Shiraoka, Japan
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (32.1°C).
The month with the lowest average high temperature is January (8°C).
- Average low temperature in December: 3.9°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in December
Shiraoka, Japan
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Shiraoka, Japan
- Average wind speed in December: 9.9km/h
The windiest month (with the highest average wind speed) is April (10.9km/h).
The calmest month (with the lowest average wind speed) is November (8.2km/h).
Average humidity in December
Shiraoka, Japan
- Average humidity in December: 62%
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (59%).
Average rainfall in December
Shiraoka, Japan
- Average rainfall in December: 26mm
The wettest month (with the highest rainfall) is October (107mm).
The driest month (with the least rainfall) is December (26mm).
Average rainfall days in December
Shiraoka, Japan
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Shiraoka, Japan
- Average snowfall in December: 1mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Shiraoka, Japan
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (2.3 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
Shiraoka, 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 August (Average sunshine: 9h and 42min).
The months with the least sunshine are February and November (Average sunshine: 6h and 6min).
Average sunshine days in December
Shiraoka, Japan
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Shiraoka, 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
Shiraoka, Japan
- Average cloud cover in December: 29
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Shiraoka, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
Shiraoka, Japan
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