December weather forecastSusuki, Japan
December
Weather in December
The first month of the winter, December, is still a cool month in Susuki, Japan, with an average temperature fluctuating between 9.1°C (48.4°F) and 12.7°C (54.9°F).Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 17.6°C (63.7°F) in November to a fresh 12.7°C (54.9°F). December nighttime temperatures hover close to the daytime peak with an average of 9.1°C (48.4°F).Humidity
In Susuki, the average relative humidity in December is 66%.Rainfall
In Susuki, during December, the rain falls for 11 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, in Susuki, there are 168.2 rainfall days, and 1268mm (49.92") of precipitation is accumulated.Snowfall
January, February and December are months with snowfall in Susuki. The months with the most snowfall days in Susuki are January, February and December, with an average of 0.1 snowfall days.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Susuki.On the first day of the month, sunrise is at 06:36 and sunset at 16:36. On the last day of December, in Susuki, sunrise is at 06:54 and sunset at 16:46 JST.
Sunshine
In December, the average sunshine in Susuki is 6.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 3 during December translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Susuki, Japan
- Average high temperature in December: 12.7°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (10.3°C).
- Average low temperature in December: 9.1°C
The month with the highest average low temperature is August (25.8°C).
The coldest month (with the lowest average low temperature) is January (6.6°C).
Average pressure in December
Susuki, Japan
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in December
Susuki, Japan
- Average wind speed in December: 28.8km/h
The windiest month (with the highest average wind speed) is January (30.6km/h).
The calmest month (with the lowest average wind speed) is August (16.6km/h).
Average humidity in December
Susuki, Japan
- Average humidity in December: 66%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is January (63%).
Average rainfall in December
Susuki, Japan
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is July (207mm).
The driest month (with the least rainfall) is January (39mm).
Average rainfall days in December
Susuki, Japan
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall days in December
Susuki, Japan
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Susuki, 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: 6h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in December
Susuki, Japan
- Average sunshine days in December: 18 days
The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Susuki, Japan
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Susuki, Japan
- Average cloud cover in December: 27
The month with the most cloud cover is June (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in December
Susuki, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).





