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 sea temperature 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
With December's onset, the average high-temperature recedes from November's comfortable 16.9°C (62.4°F) to a fresh 11°C (51.8°F). Yatsushiro's average temperature during the nights of December is recorded at a chilly 6.2°C (43.2°F).Humidity
The average relative humidity in December in Yatsushiro is 73%.Rainfall
In Yatsushiro, Japan, in December, it is raining for 12.7 days, with typically 69mm (2.72") of accumulated precipitation. Throughout the year, there are 182.8 rainfall days, and 1440mm (56.69") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Yatsushiro. December is the first month it typically snows. Throughout December, in the average 1.5 snowfall days, it receives 14mm (0.55") of snow. In Yatsushiro, during the entire year, snow falls for 5.8 days and aggregates up to 40mm (1.57") of snow.Sea temperature
In Yatsushiro, in December, the average water temperature is 20.1°C (68.2°F).Note: For most, swimming in 20.1°C (68.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the shortest days in Yatsushiro is December, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 07:01 and sunset at 17:11. On the last day of December, in Yatsushiro, sunrise is at 07:19 and sunset at 17:22 JST.
Sunshine
In December, the average sunshine in Yatsushiro, Japan, is 5.4h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Yatsushiro in December?
What is the average humidity in December in Yatsushiro?
How many days does it rain in December in Yatsushiro?
When does it start snowing in Yatsushiro?
What is the sea water temperature in December in Yatsushiro?
What is the month with the shortest days in Yatsushiro?
What is the average length of the day in December in Yatsushiro?
What time are sunrise and sunset in December in Yatsushiro?
How many hours of sunshine does Yatsushiro have in December?
When is the lowest UV index in Yatsushiro?
How high is the UV index in December in Yatsushiro?
Average temperature in December
Yatsushiro, Japan
- Average high temperature in December: 11°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in December: 6.2°C
The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in December
Yatsushiro, Japan
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in December
Yatsushiro, Japan
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is June (8.2km/h).
Average humidity in December
Yatsushiro, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Yatsushiro, Japan
- Average rainfall in December: 69mm
The wettest month (with the highest rainfall) is June (303mm).
The driest month (with the least rainfall) is January (51mm).
Average rainfall days in December
Yatsushiro, Japan
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is July (22.9 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in December
Yatsushiro, Japan
- Average snowfall in December: 14mm
The month with the highest snowfall is January (19mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Yatsushiro, Japan
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Yatsushiro, Japan
- Average sea temperature in December: 20.1°C
The best month for swimming (with the highest average sea temperature) is August (28°C).
The coldest month (with the lowest average sea temperature) is March (17.2°C).
Average daylight in December /
Average sunshine in December
Yatsushiro, Japan
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Yatsushiro, Japan
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (5.9 days).
Average UV index in December
Yatsushiro, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Yatsushiro, Japan
- Average cloud cover in December: 41
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
Yatsushiro, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
