December weather forecastHatari, Japan
December
Weather in December
December, the first month of the winter in Hatari, is also a frosty month, with an average temperature ranging between min 5°C (41°F) and max 9.9°C (49.8°F).Temperature
December's arrival comes with a decrease in the average high-temperature, moving from a refreshing 15.5°C (59.9°F) in November to a frosty 9.9°C (49.8°F). Hatari encounters an average temperature dip to a wintry 5°C (41°F) throughout December, subtly lower than its daytime maximum.Humidity
In December, the average relative humidity is 74%.Rainfall
In Hatari, in December, it is raining for 10.7 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, there are 162.8 rainfall days, and 749mm (29.49") of precipitation is accumulated.Snowfall
January, February and December are months with snowfall. December is the month with the most snowfall. Snow falls for 1.2 days and accumulates 6mm (0.24") of snow.Daylight
December has the shortest days of the year in Hatari, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:56 and sunset at 17:00. On the last day of December, in Hatari, Japan, sunrise is at 07:14 and sunset at 17:10 JST.
Sunshine
The average sunshine in December is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hatari, Japan
- Average high temperature in December: 9.9°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8°C).
- Average low temperature in December: 5°C
The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in December
Hatari, Japan
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in December
Hatari, Japan
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is January (12.2km/h).
The calmest month (with the lowest average wind speed) is June (6.6km/h).
Average humidity in December
Hatari, Japan
- Average humidity in December: 74%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (72%).
Average rainfall in December
Hatari, Japan
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is June (149mm).
The driest month (with the least rainfall) is January (24mm).
Average rainfall days in December
Hatari, Japan
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Hatari, Japan
- Average snowfall in December: 6mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Hatari, Japan
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Hatari, Japan
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Hatari, Japan
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (6.4 days).
Average UV index in December
Hatari, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Hatari, Japan
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Hatari, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
