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
December ushers in a slight temperature change, with average high-temperatures reducing from November's frosty 6.9°C (44.4°F) to a cold 0.7°C (33.3°F). Kuromatsunai, during the December nights, maintains an average temperature of -2.6°C (27.3°F), closely aligned with its daytime readings.Humidity
In December, the average relative humidity in Kuromatsunai is 80%.Rainfall
December is the month with the most rainfall in Kuromatsunai. Rain falls for 8.2 days and accumulates 101mm (3.98") of precipitation.Snowfall
Months with snowfall in Kuromatsunai are January through April, October through December. The month with the most snowfall in Kuromatsunai, Japan, is December, when snow falls for 21.3 days and typically aggregates up to 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 the month, sunrise is at 06:49 and sunset at 16:06. On the last day of December, sunrise is at 07:08 and sunset at 16:14 JST.
Sunshine
The average sunshine in December is 1.8h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold is it in Kuromatsunai in December?
What is the average humidity in December in Kuromatsunai?
What is the rainiest month in Kuromatsunai?
How much does it rain in Kuromatsunai in December?
When does it snow the most in Kuromatsunai?
How much does it snow in Kuromatsunai in December?
What is the month with the shortest days in Kuromatsunai?
What is the average length of the day in December in Kuromatsunai?
What time are sunrise and sunset in December in Kuromatsunai?
How many hours of sunshine does Kuromatsunai have in December?
When is the lowest UV index in Kuromatsunai?
What is the UV index reading in December in Kuromatsunai?
Average temperature in December
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, Japan
- Average daylight in December: 9h and 1min
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: 1h and 5min
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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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
Kuromatsunai, 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).
Kuromatsunai, Japan
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