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
December's arrival correlates with a reduction in the average high-temperature, down from a refreshing 14.9°C (58.8°F) in November to a frosty 9.6°C (49.3°F). In Aihara, the nighttime temperature averages to an icy 3.3°C (37.9°F) during December.Humidity
In Aihara, the average relative humidity in December is 66%.Rainfall
In Aihara, in December, it is raining for 9.6 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, in Aihara, Japan, there are 187.4 rainfall days, and 1055mm (41.54") of precipitation is accumulated.Snowfall
Months with snowfall in Aihara, Japan, are January through March, November and December. In Aihara, in December, during 0.6 snowfall days, 1mm (0.04") of snow is typically accumulated. In Aihara, during the entire year, snow falls for 9 days and aggregates up to 140mm (5.51") of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 06:33 and sunset at 16:29. On the last day of December, in Aihara, sunrise is at 06:51 and sunset at 16:39 JST.
Sunshine
In December, the average sunshine is 6.5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Aihara, Japan. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Always opt for UVA and UVB-resistant sunglasses on radiant days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What is the average December temperature in Aihara?
What is the average humidity in December in Aihara?
How many days does it rain in December in Aihara?
How many days does it snow in December in Aihara?
What is the month with the shortest days in Aihara?
What is the average length of the day in December in Aihara?
What time are sunrise and sunset in December in Aihara?
How long on average sun shines in December in Aihara?
When is the lowest UV index in Aihara?
What is the UV index reading in December in Aihara?
Average temperature in December
Aihara, Japan
- Average high temperature in December: 9.6°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in December: 3.3°C
The month with the highest average low temperature is August (23.1°C).
The coldest month (with the lowest average low temperature) is January (0.2°C).
Average pressure in December
Aihara, Japan
- Average pressure in December: 1016.6mbar
The month with the highest atmospheric pressure is November (1018.3mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Aihara, Japan
- Average wind speed in December: 9.4km/h
The windiest month (with the highest average wind speed) is April (11.2km/h).
The calmest month (with the lowest average wind speed) is November (8.7km/h).
Average humidity in December
Aihara, Japan
- Average humidity in December: 66%
The months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is January (63%).
Average rainfall in December
Aihara, Japan
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is October (154mm).
The driest month (with the least rainfall) is February (40mm).
Average rainfall days in December
Aihara, Japan
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Aihara, Japan
- Average snowfall in December: 1mm
The month with the highest snowfall is February (69mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Aihara, Japan
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (3.8 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
Aihara, 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: 6h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in December
Aihara, Japan
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is July (3.8 days).
Average UV index in December
Aihara, 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, February and December (UV index 2).
Average cloud cover in December
Aihara, Japan
- Average cloud cover in December: 27
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Aihara, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, November and December (10km).
The months with the lowest visibility are March, April, May, June, July, August, September and October (9km).
Aihara, Japan
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