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's onset corresponds with a shift in the average high-temperature, moving from a moderate 14.5°C (58.1°F) in November to a chilly 8.6°C (47.5°F). Nawa's nocturnal readings in December exhibit minimal variation from the daytime temperatures, averaging at a wintry 4.6°C (40.3°F).Humidity
In December, the average relative humidity is 78%.Rainfall
In December, the rain falls for 18 days. Throughout December, 68mm (2.68") of precipitation is accumulated. In Nawa, Japan, during the entire year, the rain falls for 186.5 days and collects up to 1033mm (40.67") of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 4.9 snowfall days, it receives 74mm (2.91") of snow. Throughout the year, there are 23.4 snowfall days, and 299mm (11.77") of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:56 and sunset at 16:53. On the last day of the month, sunrise is at 07:15 and sunset at 17:03 JST.
Sunshine
The average sunshine in December is 3.3h.UV index
January, February 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 minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 in December translates into these instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December in Nawa?
When does it start to snow?
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 is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Nawa, Japan
- Average high temperature in December: 8.6°C
The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in December: 4.6°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 (2.4°C).
Average pressure in December
Nawa, Japan
- Average pressure in December: 1019.8mbar
The month with the highest atmospheric pressure is February (1020.5mbar).
The months with the lowest atmospheric pressure are June and July (1008.3mbar).
Average wind speed in December
Nawa, Japan
- Average wind speed in December: 15.5km/h
The windiest months (with the highest average wind speed) are January and December (15.5km/h).
The calmest month (with the lowest average wind speed) is June (8.5km/h).
Average humidity in December
Nawa, Japan
- Average humidity in December: 78%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in December
Nawa, Japan
- Average rainfall in December: 68mm
The wettest month (with the highest rainfall) is July (176mm).
The driest month (with the least rainfall) is February (38mm).
Average rainfall days in December
Nawa, Japan
- Average rainfall days in December: 18 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Nawa, Japan
- Average snowfall in December: 74mm
The month with the highest snowfall is January (117mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Nawa, Japan
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Nawa, 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: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Nawa, Japan
- Average sunshine days in December: 8 days
The month with the most sunshine days is May (17.1 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in December
Nawa, 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
Nawa, Japan
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 34).
Average visibility in December
Nawa, Japan
- Average visibility in December: 9km
The months with the highest visibility are March, October and November (10km).
The months with the lowest visibility are January, February, April, May, June, July, August, September and December (9km).
