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
Ashiya's average high-temperature decreases in December, falling from a moderate 15.1°C (59.2°F) in November to a frosty 9.4°C (48.9°F). Ashiya records an average temperature drop to an icy 4.2°C (39.6°F) in December.Humidity
In Ashiya, the average relative humidity in December is 76%.Rainfall
In Ashiya, Japan, in December, during 18.1 rainfall days, 65mm (2.56") of precipitation is typically accumulated. In Ashiya, Japan, during the entire year, the rain falls for 207 days and collects up to 1194mm (47.01") of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 5.5 snowfall days, it receives 36mm (1.42") of snow. Throughout the year, there are 26.9 snowfall days, and 204mm (8.03") of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:47 and sunset at 16:47. On the last day of December, sunrise is at 07:05 and sunset at 16:57 JST.
Sunshine
In Ashiya, Japan, the average sunshine in December is 5.1h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Ashiya, Japan. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are December temperatures in Ashiya?
What is the average humidity in December in Ashiya?
How many days does it rain in December in Ashiya?
When does it start snowing in Ashiya?
What is the month with the shortest days in Ashiya?
How many hours of daylight does Ashiya have in December?
When are sunrise and sunset in December in Ashiya?
How long on average sun shines in December in Ashiya?
When is the lowest UV index in Ashiya?
What is the UV index reading in December in Ashiya?
Average temperature in December
Ashiya, Japan
- Average high temperature in December: 9.4°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in December: 4.2°C
The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Ashiya, Japan
- Average pressure in December: 1019.4mbar
The month with the highest atmospheric pressure is February (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in December
Ashiya, Japan
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is January (11.5km/h).
The calmest month (with the lowest average wind speed) is June (8.3km/h).
Average humidity in December
Ashiya, Japan
- Average humidity in December: 76%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in December
Ashiya, Japan
- Average rainfall in December: 65mm
The wettest month (with the highest rainfall) is July (196mm).
The driest month (with the least rainfall) is January (49mm).
Average rainfall days in December
Ashiya, Japan
- Average rainfall days in December: 18.1 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is November (14.1 days).
Average snowfall in December
Ashiya, Japan
- Average snowfall in December: 36mm
The month with the highest snowfall is January (96mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Ashiya, Japan
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Ashiya, Japan
- Average daylight in December: 9h and 5min
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: 5h 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: 4h and 48min).
Average sunshine days in December
Ashiya, Japan
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is July (5.6 days).
Average UV index in December
Ashiya, 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
Ashiya, Japan
- Average cloud cover in December: 43
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Ashiya, Japan
- Average visibility in December: 10km
The months with the highest visibility are November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and October (9km).
Ashiya, Japan
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