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 fresh 12.5°C (54.5°F) in November to a chilly 6.3°C (43.3°F). Watari registers an average low-temperature of 1.3°C (34.3°F) throughout December, a modest decrease from its daytime highs.Humidity
In Watari, the average relative humidity in December is 77%.Rainfall
In Watari, during December, the rain falls for 13.1 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, in Watari, there are 164.3 rainfall days, and 828mm (32.6") of precipitation is accumulated.Snowfall
Months with snowfall are January through April and December. December is the first month it typically snows in Watari. Throughout December, in the average 7.9 snowfall days, it receives 63mm (2.48") of snow. In Watari, during the entire year, snow falls for 37.6 days and aggregates up to 373mm (14.69") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 06:34 and sunset at 16:19. On the last day of December, in Watari, sunrise is at 06:53 and sunset at 16:29 JST.
Sunshine
In Watari, the average sunshine in December is 5.3h.UV index
The months with the lowest UV index in Watari are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Watari during December?
What is the average humidity in December in Watari?
How much does it rain in Watari in December?
When does it start snowing in Watari?
What is the month with the shortest days in Watari?
What is the average length of the day in December in Watari?
When are sunrise and sunset in December in Watari?
How many hours of sunshine does Watari have in December?
When is the lowest UV index in Watari?
What is the UV index intensity in December in Watari?
Average temperature in December
Watari, Japan
- Average high temperature in December: 6.3°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in December: 1.3°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is February (-2.2°C).
Average pressure in December
Watari, Japan
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in December
Watari, Japan
- Average wind speed in December: 14.4km/h
The windiest month (with the highest average wind speed) is January (14.9km/h).
The calmest month (with the lowest average wind speed) is July (7.9km/h).
Average humidity in December
Watari, Japan
- Average humidity in December: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Watari, Japan
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in December
Watari, Japan
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Watari, Japan
- Average snowfall in December: 63mm
The month with the highest snowfall is January (129mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Watari, Japan
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (13.3 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
Watari, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Watari, Japan
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is July (7 days).
Average UV index in December
Watari, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in December
Watari, Japan
- Average cloud cover in December: 45
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in December
Watari, Japan
- Average visibility in December: 9km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is July (8km).
