December weather forecastTomisato, Japan
December
Weather in December
The first month of the winter, December, is still a cool month in Tomisato, Japan, with an average temperature varying between 11.5°C (52.7°F) and 6.9°C (44.4°F).Temperature
The arrival of December indicates a decrease in the average high-temperature, moving from a comfortable 16.6°C (61.9°F) in November to a fresh 11.5°C (52.7°F). In December, a low-temperature average of 6.9°C (44.4°F) is characteristic of Tomisato, marking a minor shift from daytime temperatures.Humidity
In Tomisato, the average relative humidity in December is 65%.Rainfall
In Tomisato, during December, the rain falls for 12.4 days and regularly aggregates up to 54mm (2.13") of precipitation. In Tomisato, during the entire year, the rain falls for 188.7 days and collects up to 1052mm (41.42") of precipitation.Snowfall
In Tomisato, Japan, snow does not fall in March through December.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 06:30 and sunset at 16:25. On the last day of December, in Tomisato, sunrise is at 06:48 and sunset at 16:35 JST.
Sunshine
The average sunshine in December is 5.9h.UV index
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Tomisato, Japan. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Note well! The intensity of the Sun's UV rays 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
Tomisato, Japan
- Average high temperature in December: 11.5°C
The warmest month (with the highest average high temperature) is August (30.1°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in December: 6.9°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 (3.8°C).
Average pressure in December
Tomisato, Japan
- Average pressure in December: 1015.9mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Tomisato, Japan
- Average wind speed in December: 14.9km/h
The windiest month (with the highest average wind speed) is March (16.8km/h).
The calmest month (with the lowest average wind speed) is June (12.8km/h).
Average humidity in December
Tomisato, Japan
- Average humidity in December: 65%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Tomisato, Japan
- Average rainfall in December: 54mm
The wettest month (with the highest rainfall) is October (144mm).
The driest month (with the least rainfall) is January (45mm).
Average rainfall days in December
Tomisato, Japan
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Tomisato, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (27mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Tomisato, Japan
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (1.8 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
Tomisato, 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: 5h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Tomisato, Japan
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Tomisato, Japan
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in December
Tomisato, Japan
- Average cloud cover in December: 33
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in December
Tomisato, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (10km).
The months with the lowest visibility are June and July (9km).





