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
With December's arrival, Niiza's weather changes as the average high-temperature falls from a refreshing 16.2°C (61.2°F) in November to a fresh 10.9°C (51.6°F). Throughout December, the average low-temperature in Niiza records at an icy 5.1°C (41.2°F).Humidity
In Niiza, the average relative humidity in December is 61%.Rainfall
The months with the least rainfall are February and December Rain falls for 8.3 days and accumulates 34mm (1.34") of rain.Snowfall
April through October and December are months without snowfall in Niiza.Daylight
December has the shortest days of the year in Niiza, Japan, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 06:33 and sunset at 16:28. On the last day of the month, sunrise is at 06:51 and sunset at 16:38 JST.
Sunshine
In December, the average sunshine is 6.4h.UV index
The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In December, the UV index of 3 transforms into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Niiza?
What is the average humidity in December in Niiza?
What is the driest month in Niiza?
How many days does it rain in December in Niiza?
When it does not snow in Niiza?
Does it snow in Niiza in December?
What is the month with the shortest days in Niiza?
How many hours of daylight does Niiza have in December?
When are sunrise and sunset in December in Niiza?
How many hours of sunshine does Niiza have in December?
How high is the UV index in December in Niiza?
Average temperature in December
Niiza, Japan
- Average high temperature in December: 10.9°C
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in December: 5.1°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in December
Niiza, Japan
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Niiza, Japan
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is April (12.9km/h).
The calmest month (with the lowest average wind speed) is November (10.1km/h).
Average humidity in December
Niiza, Japan
- Average humidity in December: 61%
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (58%).
Average rainfall in December
Niiza, Japan
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is October (121mm).
The driest months (with the least rainfall) are February and December (34mm).
Average rainfall days in December
Niiza, Japan
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Niiza, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Niiza, Japan
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in December /
Average sunshine in December
Niiza, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in December
Niiza, Japan
- Average sunshine days in December: 20.8 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in December
Niiza, 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 and February (UV index 2).
Average cloud cover in December
Niiza, Japan
- Average cloud cover in December: 28
The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Niiza, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, May, August, October, November and December (10km).
The months with the lowest visibility are April, June, July and September (9km).
