December weather forecastNikko, Japan
December
Weather in December
The arrival of December signals the beginning of winter in Nikko once again. Temperatures continue sliding with the arrival of frosty nights and cold days. A significant hallmark of winter, the recorded snowfall of 94mm (3.7"), adds a distinctive white touch to the city. With the snow-capped scenery, the city turns into a stunning winter wonderland. Adequate winter clothing is necessary to stay snug under Nikko's wintertime temperatures.Temperature
The decrease of average high-temperatures is mild in December, with a decline from a cool 11.5°C (52.7°F) in November to a cold 5.5°C (41.9°F). December in Nikko is noted for a mean low-temperature of -1.3°C (29.7°F).Humidity
In December, the average relative humidity in Nikko is 74%.Rainfall
In December, the rain falls for 15.1 days. Throughout December, 47mm (1.85") of precipitation is accumulated. In Nikko, during the entire year, the rain falls for 226.7 days and collects up to 1238mm (48.74") of precipitation.Snowfall
Months with snowfall in Nikko are January through April, November and December. In December, it is snowing for 11.4 days. Throughout December, 94mm (3.7") of snow is accumulated. Throughout the year, there are 57 snowfall days, and 603mm (23.74") of snow is accumulated.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 06:35 and sunset at 16:25. On the last day of December, sunrise is at 06:53 and sunset at 16:35 JST.
Sunshine
The average sunshine in December in Nikko is 6.6h.UV index
January through March, November 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 exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 in December translates into these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nikko, Japan
- Average high temperature in December: 5.5°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in December: -1.3°C
The month with the highest average low temperature is August (19.6°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in December
Nikko, Japan
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in December
Nikko, Japan
- Average wind speed in December: 8.9km/h
The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is July (5.2km/h).
Average humidity in December
Nikko, Japan
- Average humidity in December: 74%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in December
Nikko, Japan
- Average rainfall in December: 47mm
The wettest month (with the highest rainfall) is July (178mm).
The driest month (with the least rainfall) is February (41mm).
Average rainfall days in December
Nikko, Japan
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is July (25.9 days).
The month with the least rainy days is January (12.8 days).
Average snowfall in December
Nikko, Japan
- Average snowfall in December: 94mm
The month with the highest snowfall is January (191mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Nikko, Japan
- Average snowfall days in December: 11.4 days
The month with the highest number of snowfall days is January (18.6 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
Nikko, Japan
- Average daylight in December: 9h and 42min
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: 6h and 36min
The month with the most sunshine is May (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in December
Nikko, Japan
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is November (10.5 days).
The months with the least sunshine days are June and July (3.3 days).
Average UV index in December
Nikko, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Nikko, Japan
- Average cloud cover in December: 31
The month with the most cloud cover is July (Cloud cover 52).
The month with the least cloud cover is November (Cloud cover 30).
Average visibility in December
Nikko, Japan
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
