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
Shinjomachi's progression into December includes a drop in the average high-temperature, from a cool 12°C (53.6°F) in November to a wintry 5.7°C (42.3°F). During the month of December, Shinjomachi identifies an average nighttime low-temperature of 0.8°C (33.4°F), slightly lower than its daytime counterpart.Humidity
In December, the average relative humidity in Shinjomachi, Japan, is 81%.Rainfall
In Shinjomachi, in December, during 21.5 rainfall days, 161mm (6.34") of precipitation is typically accumulated. In Shinjomachi, during the entire year, the rain falls for 218.8 days and collects up to 1305mm (51.38") of precipitation.Snowfall
January through April and December are months with snowfall in Shinjomachi. December is the first month it typically snows in Shinjomachi. Throughout December, in the average 10.3 snowfall days, it receives 322mm (12.68") of snow. In Shinjomachi, during the entire year, snow falls for 48 days and aggregates up to 1270mm (50") of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 06:44 and sunset at 16:35. On the last day of December, in Shinjomachi, sunrise is at 07:03 and sunset at 16:44 JST.
Sunshine
In December, the average sunshine in Shinjomachi, Japan, is 3.8h.UV index
January 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 health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Shinjomachi in December?
What is the average humidity in December in Shinjomachi?
How much does it rain in Shinjomachi in December?
When does it start to snow in Shinjomachi?
What is the month with the shortest days in Shinjomachi?
How many hours of daylight does Shinjomachi have in December?
When are sunrise and sunset in December in Shinjomachi?
How many hours of sunshine does Shinjomachi have in December?
What is the month with the lowest UV index in Shinjomachi?
How high is the UV index in December in Shinjomachi?
Average temperature in December
Shinjomachi, Japan
- Average high temperature in December: 5.7°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in December: 0.8°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 (-2.8°C).
Average pressure in December
Shinjomachi, Japan
- Average pressure in December: 1018.1mbar
The months with the highest atmospheric pressure are February and November (1019.4mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Shinjomachi, Japan
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest months (with the lowest average wind speed) are June and August (7.4km/h).
Average humidity in December
Shinjomachi, Japan
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Shinjomachi, Japan
- Average rainfall in December: 161mm
The wettest month (with the highest rainfall) is July (179mm).
The driest month (with the least rainfall) is May (64mm).
Average rainfall days in December
Shinjomachi, Japan
- Average rainfall days in December: 21.5 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is May (14.4 days).
Average snowfall in December
Shinjomachi, Japan
- Average snowfall in December: 322mm
The month with the highest snowfall is January (469mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Shinjomachi, Japan
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is January (17.5 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
Shinjomachi, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Shinjomachi, Japan
- Average sunshine days in December: 4 days
The month with the most sunshine days is May (13.6 days).
The month with the least sunshine days is January (3.5 days).
Average UV index in December
Shinjomachi, Japan
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Shinjomachi, Japan
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 33).
Average visibility in December
Shinjomachi, Japan
- Average visibility in December: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (8km).
