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 is characterized by a reduction in the average high-temperature, from a mild 15.3°C (59.5°F) in November to a frosty 9.5°C (49.1°F). The low-temperature averages to a cold 2.8°C (37°F) during the nights of December.Humidity
In Nanai, the average relative humidity in December is 65%.Rainfall
The month with the least rainfall is December, when the rain falls for 8 days and typically collects 20mm (0.79") of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:32 and sunset at 16:24. On the last day of the month, sunrise is at 06:51 and sunset at 16:34 JST.
Sunshine
The average sunshine in December is 6.5h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December in Nanai?
What is the driest month?
How much does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Nanai, Japan
- Average high temperature in December: 9.5°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in December
Nanai, Japan
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in December
Nanai, Japan
- Average wind speed in December: 8km/h
The windiest month (with the highest average wind speed) is April (9.8km/h).
The calmest month (with the lowest average wind speed) is November (7.2km/h).
Average humidity in December
Nanai, Japan
- Average humidity in December: 65%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Nanai, Japan
- Average rainfall in December: 20mm
The wettest month (with the highest rainfall) is July (87mm).
The driest month (with the least rainfall) is December (20mm).
Average rainfall days in December
Nanai, Japan
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Nanai, 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
Nanai, Japan
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (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
Nanai, Japan
- Average daylight in December: 9h and 4min
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 42min).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are February and November (Average sunshine: 6h and 6min).
Average sunshine days in December
Nanai, Japan
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is June (8 days).
Average UV index in December
Nanai, 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
Nanai, Japan
- Average cloud cover in December: 30
The month with the most cloud cover is June (Cloud cover 50).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in December
Nanai, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March and December (10km).
The month with the lowest visibility is July (8km).
