December weather forecastSetana, Japan
December
Weather in December
The first month of the winter, December, is still a cold month in Setana, Japan, with an average temperature fluctuating between 0.7°C (33.3°F) and -2.6°C (27.3°F).Temperature
December comes with a drop in the average high-temperature, falling from November's frosty 6.9°C (44.4°F) to a wintry 0.7°C (33.3°F). In December, Setana's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of -2.6°C (27.3°F).Humidity
The average relative humidity in December in Setana is 80%.Rainfall
December is the month with the most rainfall. Rain falls for 8.2 days and accumulates 101mm (3.98") of precipitation.Snowfall
January through April, October through December are months with snowfall. December is the month with the most snowfall in Setana, Japan. Snow falls for 21.3 days and accumulates 301mm (11.85") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December in Setana, sunrise is at 06:50 and sunset at 16:08. On the last day of the month, sunrise is at 07:09 and sunset at 16:17 JST.
Sunshine
The average sunshine in December is 1.8h.UV index
The months with the lowest UV index in Setana, Japan, are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Setana, Japan
- Average high temperature in December: 0.7°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in December: -2.6°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (-5.5°C).
Average pressure in December
Setana, Japan
- Average pressure in December: 1013.7mbar
The month with the highest atmospheric pressure is November (1016.5mbar).
The month with the lowest atmospheric pressure is July (1008.3mbar).
Average wind speed in December
Setana, Japan
- Average wind speed in December: 21.6km/h
The windiest month (with the highest average wind speed) is December (21.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in December
Setana, Japan
- Average humidity in December: 80%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Setana, Japan
- Average rainfall in December: 101mm
The wettest month (with the highest rainfall) is December (101mm).
The driest month (with the least rainfall) is April (46mm).
Average rainfall days in December
Setana, Japan
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in December
Setana, Japan
- Average snowfall in December: 301mm
The month with the highest snowfall is December (301mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Setana, Japan
- Average snowfall days in December: 21.3 days
The month with the highest number of snowfall days is January (24 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Setana, Japan
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 1h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in December
Setana, Japan
- Average sunshine days in December: 2.5 days
The month with the most sunshine days is May (15.2 days).
The month with the least sunshine days is December (2.5 days).
Average UV index in December
Setana, Japan
- Average UV index in December: 1
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Setana, Japan
- Average cloud cover in December: 81
The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in December
Setana, Japan
- Average visibility in December: 7km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January and December (7km).





