December weather forecastHatogawa, Japan
December
Weather in December
The first month of the winter, December, is also a fresh month in Hatogawa, Japan, with an average temperature fluctuating between 7°C (44.6°F) and 10.8°C (51.4°F).Temperature
A subtle decrease in the average high-temperature marks December, falling from November's refreshing 16.3°C (61.3°F) to a fresh 10.8°C (51.4°F). During December, nights cool slightly to an average low of 7°C (44.6°F).Humidity
The average relative humidity in December is 72%.Rainfall
In December, the rain falls for 10.8 days. Throughout December, 24mm (0.94") of precipitation is accumulated. In Hatogawa, Japan, during the entire year, the rain falls for 149.2 days and collects up to 456mm (17.95") of precipitation.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.8 snowfall days, it receives 1mm (0.04") of snow. In Hatogawa, Japan, during the entire year, snow falls for 4.8 days and aggregates up to 4mm (0.16") of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 07:06 and sunset at 17:12. On the last day of December, sunrise is at 07:24 and sunset at 17:22 JST.
Sunshine
January and December, with an average of 4.2h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hatogawa, Japan
- Average high temperature in December: 10.8°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in December: 7°C
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).
Average pressure in December
Hatogawa, Japan
- Average pressure in December: 1021.6mbar
The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed in December
Hatogawa, Japan
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is January (16.4km/h).
The calmest month (with the lowest average wind speed) is June (10.7km/h).
Average humidity in December
Hatogawa, Japan
- Average humidity in December: 72%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January, February and March (71%).
Average rainfall in December
Hatogawa, Japan
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is July (105mm).
The driest month (with the least rainfall) is January (18mm).
Average rainfall days in December
Hatogawa, Japan
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is May (9.4 days).
Average snowfall in December
Hatogawa, Japan
- Average snowfall in December: 1mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Hatogawa, Japan
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is January (2.5 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
Hatogawa, Japan
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in December
Hatogawa, Japan
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is May (19.4 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in December
Hatogawa, 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
Hatogawa, Japan
- Average cloud cover in December: 54
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Hatogawa, 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).
