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
December involves a decrease in temperature, down from a refreshing 15.9°C (60.6°F) in November to a cool 10.1°C (50.2°F). Shinkaichi encounters an average temperature dip to a wintry 5.5°C (41.9°F) throughout December, subtly lower than its daytime maximum.Humidity
In December, the average relative humidity is 73%.Rainfall
In Shinkaichi, in December, during 15.6 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Shinkaichi, during the entire year, the rain falls for 177.5 days and collects up to 801mm (31.54") of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 3 snowfall days, it receives 10mm (0.39") of snow. In Shinkaichi, during the entire year, snow falls for 15.6 days and aggregates up to 84mm (3.31") of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:48 and sunset at 16:48. On the last day of December, sunrise is at 07:06 and sunset at 16:58 JST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Shinkaichi have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Shinkaichi?
Average temperature in December
Shinkaichi, Japan
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (7.9°C).
- Average low temperature in December: 5.5°C
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in December
Shinkaichi, Japan
- Average pressure in December: 1019.5mbar
The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in December
Shinkaichi, Japan
- Average wind speed in December: 14.6km/h
The windiest month (with the highest average wind speed) is January (15km/h).
The calmest month (with the lowest average wind speed) is June (9.5km/h).
Average humidity in December
Shinkaichi, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are March and April (71%).
Average rainfall in December
Shinkaichi, Japan
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is July (127mm).
The driest month (with the least rainfall) is January (31mm).
Average rainfall days in December
Shinkaichi, Japan
- Average rainfall days in December: 15.6 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is May (11.7 days).
Average snowfall in December
Shinkaichi, Japan
- Average snowfall in December: 10mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Shinkaichi, Japan
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Shinkaichi, Japan
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in December
Shinkaichi, Japan
- Average sunshine days in December: 8.9 days
The month with the most sunshine days is May (17.1 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in December
Shinkaichi, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Shinkaichi, Japan
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Shinkaichi, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
