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
Weather in December
Temperature
With December's arrival, Marumori sees a decrease in average high-temperatures, moving from a cool 12.5°C (54.5°F) in November to a frosty 6.3°C (43.3°F). In December, a low-temperature average of 1.3°C (34.3°F) is characteristic of Marumori, marking a minor shift from daytime temperatures.Humidity
The average relative humidity in December in Marumori is 77%.Rainfall
In December, in Marumori, the rain falls for 13.1 days. Throughout December, 39mm (1.54") of precipitation is accumulated. In Marumori, during the entire year, the rain falls for 165.4 days and collects up to 854mm (33.62") of precipitation.Snowfall
January through April and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 7.9 snowfall days, it receives 63mm (2.48") of snow. Throughout the year, in Marumori, there are 37.6 snowfall days, and 373mm (14.69") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December in Marumori, sunrise is at 06:33 and sunset at 16:18. On the last day of the month, sunrise is at 06:52 and sunset at 16:27 JST.
Sunshine
In December, the average sunshine in Marumori is 5.2h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Marumori. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Minimize direct exposure to the Sun during midday when its radiation is at its peak. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is December in Marumori?
What is the average humidity in December in Marumori?
How many days does it rain in December in Marumori?
When does it start to snow in Marumori?
What is the month with the shortest days in Marumori?
What is the average length of the day in December in Marumori?
When is the sunrise / sunset in December in Marumori?
How many hours of sunshine does Marumori have in December?
What is the month with the lowest UV index in Marumori?
What is the UV index intensity in December in Marumori?
Average temperature in December
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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 1min
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
Marumori, 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
Marumori, 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
Marumori, 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
Marumori, 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).
Marumori, Japan
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