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
December
Weather in December
Temperature
December implies a gentle temperature shift, with average high-temperatures reducing from November's refreshing 16°C (60.8°F) to a cool 10.6°C (51.1°F). Hirao records a slight downturn in temperature to an average of 6.5°C (43.7°F) during December nights.Humidity
In December, the average relative humidity in Hirao, Japan, is 73%.Rainfall
In Hirao, during December, the rain falls for 14.7 days and regularly aggregates up to 68mm (2.68") of precipitation. In Hirao, during the entire year, the rain falls for 168 days and collects up to 1163mm (45.79") of precipitation.Snowfall
January, February and December are months with snowfall in Hirao. December is the month with the most snowfall. Snow falls for 1.8 days and accumulates 8mm (0.31") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December in Hirao, sunrise is at 06:58 and sunset at 17:02. On the last day of the month, sunrise is at 07:16 and sunset at 17:12 JST.
Sunshine
In December, the average sunshine is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Hirao. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Hirao?
What is the average humidity in December in Hirao?
How much does it rain in Hirao in December?
What is the snowiest month in Hirao?
When does it start to snow in Hirao?
What is the month with the shortest days in Hirao?
What is the average length of the day in December in Hirao?
When is the sunrise / sunset in December in Hirao?
How many hours of sunshine does Hirao have in December?
What are the months with the lowest UV index in Hirao?
What is the UV index reading in December in Hirao?
Average temperature in December
Hirao, Japan
- Average high temperature in December: 10.6°C
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in December: 6.5°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 (4.3°C).
Average pressure in December
Hirao, Japan
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is January (1021.3mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in December
Hirao, Japan
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is January (14.5km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).
Average humidity in December
Hirao, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January, February and March (71%).
Average rainfall in December
Hirao, Japan
- Average rainfall in December: 68mm
The wettest month (with the highest rainfall) is July (213mm).
The driest month (with the least rainfall) is January (39mm).
Average rainfall days in December
Hirao, Japan
- Average rainfall days in December: 14.7 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is October (10.5 days).
Average snowfall in December
Hirao, Japan
- Average snowfall in December: 8mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Hirao, Japan
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (3.3 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
Hirao, 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: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Hirao, Japan
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Hirao, 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
Hirao, Japan
- Average cloud cover in December: 40
The months with the most cloud cover are January and June (Cloud cover 43).
The months with the least cloud cover are August, October and November (Cloud cover 32).
Average visibility in December
Hirao, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
