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 shift from November to December in Hachioji involves a decrease in the average high-temperature, dropping from a refreshing 16.2°C (61.2°F) to a cool 10.6°C (51.1°F). Hachioji reports a consistent average low-temperature of 4.8°C (40.6°F) throughout December nights.Humidity
In Hachioji, Japan, the average relative humidity in December is 62%.Rainfall
December is the month with the least rainfall in Hachioji. Rain falls for 6.2 days and accumulates 19mm (0.75") of precipitation.Snowfall
April through October and December are months without snowfall in Hachioji.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Hachioji, Japan.On the first day of December in Hachioji, sunrise is at 06:34 and sunset at 16:29. On the last day of the month, sunrise is at 06:52 and sunset at 16:39 JST.
Sunshine
In Hachioji, the average sunshine in December is 6.4h.UV index
The average daily maximum UV index in December in Hachioji is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 3 in December leads to these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What are December temperatures in Hachioji?
What is the average humidity in December in Hachioji?
What is the driest month in Hachioji?
How many days does it rain in December in Hachioji?
When it does not snow in Hachioji?
Does it snow in Hachioji in December?
What is the month with the shortest days in Hachioji?
How many hours of daylight does Hachioji have in December?
When are sunrise and sunset in December in Hachioji?
How long on average sun shines in December in Hachioji?
What is the UV index intensity in December in Hachioji?
Average temperature in December
Hachioji, Japan
- Average high temperature in December: 10.6°C
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in December: 4.8°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 (2°C).
Average pressure in December
Hachioji, Japan
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Hachioji, Japan
- Average wind speed in December: 11km/h
The windiest month (with the highest average wind speed) is April (12.6km/h).
The calmest month (with the lowest average wind speed) is November (9.7km/h).
Average humidity in December
Hachioji, Japan
- Average humidity in December: 62%
The month with the highest relative humidity is July (75%).
The month with the lowest relative humidity is January (59%).
Average rainfall in December
Hachioji, Japan
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is October (79mm).
The driest month (with the least rainfall) is December (19mm).
Average rainfall days in December
Hachioji, Japan
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in December
Hachioji, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Hachioji, Japan
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in December /
Average sunshine in December
Hachioji, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in December
Hachioji, Japan
- Average sunshine days in December: 24.3 days
The month with the most sunshine days is January (26 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in December
Hachioji, 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
Hachioji, Japan
- Average cloud cover in December: 28
The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Hachioji, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, August, October, November and December (10km).
The months with the lowest visibility are June, July and September (9km).
Hachioji, Japan
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