Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival correlates with a reduction in the average high-temperature, down from a comfortable 16.7°C (62.1°F) in November to a fresh 11.7°C (53.1°F). During the nights of December, the average low-temperature holds at a frosty 7.6°C (45.7°F).Humidity
In December, the average relative humidity in Susami is 72%.Rainfall
In December, the rain falls for 10.9 days. Throughout December, 51mm (2.01") of precipitation is accumulated. Throughout the year, there are 172.3 rainfall days, and 1363mm (53.66") of precipitation is accumulated.Snowfall
Months with snowfall in Susami are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. In Susami, during the entire year, snow falls for 2.3 days and aggregates up to 4mm (0.16") of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:44 and sunset at 16:49. On the last day of December, sunrise is at 07:02 and sunset at 17:00 JST.
Sunshine
In Susami, the average sunshine in December is 6.2h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in December transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What are December temperatures in Susami?
What is the average humidity in December in Susami?
How many days does it rain in December in Susami?
When does it start snowing in Susami?
What is the month with the shortest days in Susami?
What is the average length of the day in December in Susami?
When are sunrise and sunset in December in Susami?
How long on average sun shines in December in Susami?
What is the month with the lowest UV index in Susami?
What is the UV index intensity in December in Susami?
Average temperature in December
Susami, Japan
- Average high temperature in December: 11.7°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 (9.3°C).
- Average low temperature in December: 7.6°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in December
Susami, Japan
- Average pressure in December: 1019.1mbar
The months with the highest atmospheric pressure are January and February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in December
Susami, Japan
- Average wind speed in December: 20.3km/h
The windiest month (with the highest average wind speed) is January (21.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in December
Susami, Japan
- Average humidity in December: 72%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is January (70%).
Average rainfall in December
Susami, Japan
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is July (226mm).
The driest month (with the least rainfall) is January (41mm).
Average rainfall days in December
Susami, Japan
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Susami, Japan
- Average snowfall in December: 1mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Susami, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1 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
Susami, 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: 6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in December
Susami, Japan
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is May (18 days).
The month with the least sunshine days is August (5.5 days).
Average UV index in December
Susami, 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 and December (UV index 3).
Average cloud cover in December
Susami, Japan
- Average cloud cover in December: 31
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is November (Cloud cover 29).
Average visibility in December
Susami, 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).
Susami, Japan
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