December weather forecastMashiko, Japan
December
Weather in December
The first month of the winter, December, is also a frosty month in Mashiko, Japan, with an average temperature fluctuating between 9.5°C (49.1°F) and 2.8°C (37°F).Temperature
Mashiko in December undergoes a mild reduction in the average high-temperature, shifting from November's refreshing 15.3°C (59.5°F) to a chilly 9.5°C (49.1°F). December's nights in Mashiko observe an average temperature of 2.8°C (37°F).Humidity
In Mashiko, the average relative humidity in December is 65%.Rainfall
December is the month with the least rainfall. Rain falls for 8 days and accumulates 20mm (0.79") of precipitation.Snowfall
April through October and December are months without snowfall in Mashiko.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 06:32 and sunset at 16:24. On the last day of the month, sunrise is at 06:51 and sunset at 16:34 JST.
Sunshine
In December, the average sunshine is 6.5h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Mashiko. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mashiko, Japan
- Average high temperature in December: 9.5°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in December
Mashiko, Japan
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in December
Mashiko, Japan
- Average wind speed in December: 8km/h
The windiest month (with the highest average wind speed) is April (9.8km/h).
The calmest month (with the lowest average wind speed) is November (7.2km/h).
Average humidity in December
Mashiko, Japan
- Average humidity in December: 65%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Mashiko, Japan
- Average rainfall in December: 20mm
The wettest month (with the highest rainfall) is July (87mm).
The driest month (with the least rainfall) is December (20mm).
Average rainfall days in December
Mashiko, Japan
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Mashiko, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Mashiko, Japan
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mashiko, 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 30min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are February and November (Average sunshine: 6h and 6min).
Average sunshine days in December
Mashiko, Japan
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is June (8 days).
Average UV index in December
Mashiko, 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
Mashiko, Japan
- Average cloud cover in December: 30
The month with the most cloud cover is June (Cloud cover 50).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in December
Mashiko, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March and December (10km).
The month with the lowest visibility is July (8km).
