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
Shinjuku's transition into December involves a gentle shift in temperature, receding from a refreshing 17.1°C (62.8°F) in November to a fresh 12.5°C (54.5°F). With a barely noticeable fluctuation in temperature, Shinjuku reaches an average low of 8.4°C (47.1°F) during the December nights.Humidity
In Shinjuku, Japan, the average relative humidity in December is 64%.Rainfall
The months with the least rainfall in Shinjuku are February and December Rain falls for 8.7 days and accumulates 39mm (1.54") of rain.Snowfall
In Shinjuku, snow does not fall in April through December.Daylight
The month with the shortest days in Shinjuku is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 06:32 and sunset at 16:27. On the last day of the month, sunrise is at 06:50 and sunset at 16:37 JST.
Sunshine
The average sunshine in December is 6.1h.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Shinjuku. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average December temperature in Shinjuku?
What is the average humidity in December in Shinjuku?
What is the driest month in Shinjuku?
How many days does it rain in December in Shinjuku?
When it does not snow in Shinjuku?
Does it snow in Shinjuku in December?
What is the month with the shortest days in Shinjuku?
How many hours of daylight does Shinjuku have in December?
What time are sunrise and sunset in December in Shinjuku?
How long on average sun shines in December in Shinjuku?
What is the month with the lowest UV index in Shinjuku?
What is the UV index reading in December in Shinjuku?
Average temperature in December
Shinjuku, Japan
- Average high temperature in December: 12.5°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in December: 8.4°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in December
Shinjuku, Japan
- Average pressure in December: 1016.2mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Shinjuku, Japan
- Average wind speed in December: 19.1km/h
The windiest month (with the highest average wind speed) is March (20.8km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in December
Shinjuku, Japan
- Average humidity in December: 64%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Shinjuku, Japan
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is October (119mm).
The driest months (with the least rainfall) are February and December (39mm).
Average rainfall days in December
Shinjuku, Japan
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in December
Shinjuku, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Shinjuku, Japan
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Shinjuku, Japan
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in December
Shinjuku, Japan
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Shinjuku, Japan
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Shinjuku, Japan
- Average cloud cover in December: 31
The months with the most cloud cover are March, June and October (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Shinjuku, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Shinjuku, Japan
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