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
December
Weather in December
Temperature
In the transition to December, Rifu observes a drop in the average high-temperature, moving from a mild 13°C (55.4°F) in November to a frosty 6.9°C (44.4°F). Rifu documents a consistent average low-temperature of 2.2°C (36°F) at night during December.Humidity
In Rifu, the average relative humidity in December is 74%.Rainfall
In December, the rain falls for 10.1 days. Throughout December, 32mm (1.26") of precipitation is accumulated. Throughout the year, there are 133.1 rainfall days, and 706mm (27.8") of precipitation is accumulated.Snowfall
January through April and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 5.2 snowfall days, it receives 28mm (1.1") of snow. Throughout the year, there are 24.2 snowfall days, and 190mm (7.48") of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:34 and sunset at 16:16. On the last day of December, sunrise is at 06:52 and sunset at 16:25 JST.
Sunshine
In December, the average sunshine is 5.6h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. 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: A daily maximum UV index of 2 in December translates into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December in Rifu?
How many days does it rain in December?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Rifu have in December?
When are sunrise and sunset in December in Rifu?
How many hours of sunshine does Rifu have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Rifu, Japan
- Average high temperature in December: 6.9°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in December: 2.2°C
The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (-1°C).
Average pressure in December
Rifu, Japan
- Average pressure in December: 1016.1mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in December
Rifu, Japan
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is January (15.4km/h).
The calmest month (with the lowest average wind speed) is July (9km/h).
Average humidity in December
Rifu, Japan
- Average humidity in December: 74%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Rifu, Japan
- Average rainfall in December: 32mm
The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in December
Rifu, Japan
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Rifu, Japan
- Average snowfall in December: 28mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Rifu, Japan
- Average snowfall days in December: 5.2 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Rifu, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in December
Rifu, Japan
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is May (21.3 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in December
Rifu, 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
Rifu, Japan
- Average cloud cover in December: 42
The month with the most cloud cover is July (Cloud cover 48).
The months with the least cloud cover are May and November (Cloud cover 36).
Average visibility in December
Rifu, Japan
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, October, November and December (10km).
The months with the lowest visibility are January, May, June, July, August and September (9km).
