December weather forecastSapporo, Japan
December
Weather in December
December brings the full swing of winter to Sapporo, Japan, where the city takes on a festive look, beautifully decorated with lights and gleaming with snow. After November, there is a significant increase in snowfall, reaching 427mm (16.81") over the month, creating a frozen landscape. As the sun sets early and snow covers the city, the festive lights illuminate the winter nights, adding to the seasonal appeal. A significant aspect of Sapporo's charm in December lies in its winter festivals and the famous Christmas market, making it a lively and festive month despite the cold.Temperature
Sapporo's December weather features a mild decline in high-temperatures, reducing from a wintry 5.5°C (41.9°F) in November to a subzero cold -1.3°C (29.7°F). Throughout the month of December, the average temperature dips to a still freezing cold -6.5°C (20.3°F) at night.Humidity
In December, the average relative humidity in Sapporo, Japan, is 87%.Rainfall
In December, the rain falls for 10 days. Throughout December, 79mm (3.11") of precipitation is accumulated. In Sapporo, during the entire year, the rain falls for 167 days and collects up to 843mm (33.19") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Sapporo, in December, snow falls for 24.8 days, with typically accumulated 427mm (16.81") of snow. Throughout the year, in Sapporo, Japan, there are 111.9 snowfall days, and 1723mm (67.83") of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:46 and sunset at 16:00. On the last day of the month, sunrise is at 07:05 and sunset at 16:09 JST.
Sunshine
The average sunshine in December is 2.7h.UV index
The months with the lowest UV index in Sapporo are January through March, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sapporo, Japan
- Average high temperature in December: -1.3°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (-3.7°C).
- Average low temperature in December: -6.5°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-10°C).
Average pressure in December
Sapporo, Japan
- Average pressure in December: 1013.1mbar
The month with the highest atmospheric pressure is November (1016.2mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in December
Sapporo, Japan
- Average wind speed in December: 12.8km/h
The windiest months (with the highest average wind speed) are April and December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in December
Sapporo, Japan
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in December
Sapporo, Japan
- Average rainfall in December: 79mm
The wettest month (with the highest rainfall) is August (112mm).
The driest month (with the least rainfall) is April (51mm).
Average rainfall days in December
Sapporo, Japan
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Sapporo, Japan
- Average snowfall in December: 427mm
The month with the highest snowfall is January (430mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Sapporo, Japan
- Average snowfall days in December: 24.8 days
The month with the highest number of snowfall days is January (28 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
Sapporo, Japan
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 42min
The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in December
Sapporo, Japan
- Average sunshine days in December: 2.7 days
The month with the most sunshine days is May (13.4 days).
The month with the least sunshine days is December (2.7 days).
Average UV index in December
Sapporo, Japan
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Sapporo, Japan
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in December
Sapporo, Japan
- Average visibility in December: 7km
The months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).
