December weather forecastShiroi, Japan
December weather for Shiroi, Japan: December, the first month of the winter in Shiroi, is also a fresh month, with temperature in the range of an average low of 5.3°C (41.5°F) and an average high of 10.8°C (51.4°F). In Shiroi, Japan, in December, during 9.4 rainfall days, 19mm (0.75") of precipitation is typically accumulated.
December
Weather in December
December, the first month of the winter in Shiroi, is also a fresh month, with temperature in the range of an average low of 5.3°C (41.5°F) and an average high of 10.8°C (51.4°F).Temperature
Shiroi's transition into December involves a shift in temperature, receding from an enjoyable 16.2°C (61.2°F) in November to a cool 10.8°C (51.4°F). The average nighttime temperature lowers to an icy 5.3°C (41.5°F) throughout December.Humidity
In December, the average relative humidity is 64%.Rainfall
In Shiroi, Japan, in December, during 9.4 rainfall days, 19mm (0.75") of precipitation is typically accumulated. In Shiroi, during the entire year, the rain falls for 144.3 days and collects up to 423mm (16.65") of precipitation.Snowfall
April through December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December in Shiroi, sunrise is at 06:31 and sunset at 16:26. On the last day of the month, sunrise is at 06:49 and sunset at 16:36 JST.
Sunshine
In Shiroi, the average sunshine in December is 6h.UV index
In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Shiroi, Japan
- Average high temperature in December: 10.8°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in December: 5.3°C
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure in December
Shiroi, Japan
- Average pressure in December: 1016.1mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Shiroi, Japan
- Average wind speed in December: 12.6km/h
The windiest month (with the highest average wind speed) is April (14.6km/h).
The calmest month (with the lowest average wind speed) is November (11.3km/h).
Average humidity in December
Shiroi, Japan
- Average humidity in December: 64%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Shiroi, Japan
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is October (58mm).
The driest month (with the least rainfall) is January (18mm).
Average rainfall days in December
Shiroi, Japan
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is October (15.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Shiroi, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (28mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Shiroi, Japan
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (2.8 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
Shiroi, Japan
- Average daylight in December: 9h and 48min
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: 6h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in December
Shiroi, Japan
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is September (12.7 days).
Average UV index in December
Shiroi, Japan
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Shiroi, Japan
- Average cloud cover in December: 32
The month with the most cloud cover is June (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in December
Shiroi, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, September, October, November and December (10km).
The months with the lowest visibility are June, July and August (9km).
