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 sea temperature 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
December ushers in a slight temperature change, with average high-temperatures reducing from November's comfortable 16.5°C (61.7°F) to a cool 10.7°C (51.3°F). December's nights in Nishio observe an average temperature of 5.6°C (42.1°F).Humidity
The average relative humidity in December in Nishio is 71%.Rainfall
In Nishio, in December, it is raining for 7.1 days, with typically 21mm (0.83") of accumulated precipitation. In Nishio, during the entire year, the rain falls for 128.7 days and collects up to 478mm (18.82") of precipitation.Snowfall
In Nishio, Japan, snow does not fall in March through December.Sea temperature
In Nishio, Japan, the average seawater temperature in December is 17.3°C (63.1°F).Note: In 17.3°C (63.1°F), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 21°C (69.8°F).
Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:41 and sunset at 16:40. On the last day of December, in Nishio, sunrise is at 06:59 and sunset at 16:50 JST.
Sunshine
In December, the average sunshine is 6.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the usual temperature for Nishio in December?
What is the average humidity in December in Nishio?
How many days does it rain in December in Nishio?
When it does not snow in Nishio?
Does it snow in Nishio in December?
How cold is the water in December in Nishio?
What is the month with the shortest days in Nishio?
How many hours of daylight does Nishio have in December?
When is the sunrise / sunset in December in Nishio?
How long on average sun shines in December in Nishio?
When is the lowest UV index in Nishio?
What is the UV index reading in December in Nishio?
Average temperature in December
Nishio, Japan
- Average high temperature in December: 10.7°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.2°C).
- Average low temperature in December: 5.6°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in December
Nishio, Japan
- Average pressure in December: 1018.3mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Nishio, Japan
- Average wind speed in December: 16.1km/h
The windiest month (with the highest average wind speed) is January (16.5km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in December
Nishio, Japan
- Average humidity in December: 71%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is February (68%).
Average rainfall in December
Nishio, Japan
- Average rainfall in December: 21mm
The wettest month (with the highest rainfall) is July (80mm).
The driest month (with the least rainfall) is January (13mm).
Average rainfall days in December
Nishio, Japan
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in December
Nishio, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Nishio, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Nishio, Japan
- Average sea temperature in December: 17.3°C
The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest months (with the lowest average sea temperature) are February and March (14.8°C).
Average daylight in December /
Average sunshine in December
Nishio, 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 54min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in December
Nishio, Japan
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in December
Nishio, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Nishio, Japan
- Average cloud cover in December: 31
The months with the most cloud cover are June and July (Cloud cover 41).
The months with the least cloud cover are January and November (Cloud cover 30).
Average visibility in December
Nishio, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
Nishio, Japan
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