December weather forecastOmihachiman, Japan
December weather for Omihachiman, Japan: The first month of the winter, December, is also a frosty month in Omihachiman, Japan, with temperature in the range of an average low of 2.5°C (36.5°F) and an average high of 8.3°C (46.9°F). In Omihachiman, Japan, in December, during 6.4 rainfall days, 11mm (0.43") of precipitation is typically accumulated.
December
Weather in December
The first month of the winter, December, is also a frosty month in Omihachiman, Japan, with temperature in the range of an average low of 2.5°C (36.5°F) and an average high of 8.3°C (46.9°F).Temperature
In December, the meteorological conditions alter, with the average high-temperature shifting from a mild 14.2°C (57.6°F) in November to a chilly 8.3°C (46.9°F). Nighttime temperatures in Omihachiman hover around an average low of 2.5°C (36.5°F) in December.Humidity
The average relative humidity in December in Omihachiman is 81%.Rainfall
In Omihachiman, in December, it is raining for 6.4 days, with typically 11mm (0.43") of accumulated precipitation. In Omihachiman, during the entire year, the rain falls for 86.8 days and collects up to 202mm (7.95") of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 2.6 snowfall days, it receives 9mm (0.35") of snow. Throughout the year, there are 16 snowfall days, and 41mm (1.61") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December in Omihachiman, Japan, sunrise is at 06:45 and sunset at 16:43. On the last day of the month, sunrise is at 07:03 and sunset at 16:53 JST.
Sunshine
In Omihachiman, the average sunshine in December is 4.8h.UV index
January, February 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 minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Omihachiman, Japan
- Average high temperature in December: 8.3°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (22.4°C).
The coldest months (with the lowest average low temperature) are January and February (0.3°C).
Average pressure in December
Omihachiman, Japan
- Average pressure in December: 1019mbar
The month with the highest atmospheric pressure is February (1019.6mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in December
Omihachiman, Japan
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is January (9.1km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).
Average humidity in December
Omihachiman, Japan
- Average humidity in December: 81%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is May (74%).
Average rainfall in December
Omihachiman, Japan
- Average rainfall in December: 11mm
The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is November (4mm).
Average rainfall days in December
Omihachiman, Japan
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is July (12.2 days).
The month with the least rainy days is November (4.1 days).
Average snowfall in December
Omihachiman, Japan
- Average snowfall in December: 9mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Omihachiman, Japan
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (7.3 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
Omihachiman, Japan
- Average daylight in December: 9h and 48min
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: 4h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Omihachiman, Japan
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is May (23.8 days).
The month with the least sunshine days is July (16.3 days).
Average UV index in December
Omihachiman, 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, February and December (UV index 2).
Average cloud cover in December
Omihachiman, Japan
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 41).
Average visibility in December
Omihachiman, Japan
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, August, November and December (8km).
The months with the lowest visibility are July, September and October (7km).
