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 is characterized by a reduction in the average high-temperature, from a mild 14.4°C (57.9°F) in November to a chilly 9.4°C (48.9°F). During December, nights in Onahama, Japan, cool slightly to an average low of 4.5°C (40.1°F).Humidity
In December, the average relative humidity in Onahama is 68%.Rainfall
In Onahama, during December, the rain falls for 7.8 days and regularly aggregates up to 31mm (1.22") of precipitation. In Onahama, during the entire year, the rain falls for 149.2 days and collects up to 755mm (29.72") of precipitation.Snowfall
In Onahama, snow does not fall in April through October and December.Daylight
December has the shortest days of the year in Onahama, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 06:30 and sunset at 16:20. On the last day of December, in Onahama, sunrise is at 06:49 and sunset at 16:29 JST.
Sunshine
In December, the average sunshine is 5.9h.UV index
In December, the average daily maximum UV index in Onahama, Japan, is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a regular UV index of 3 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Onahama in December?
What is the average humidity in December in Onahama?
How many days does it rain in December in Onahama?
When it does not snow in Onahama?
Does it snow in Onahama in December?
What is the month with the shortest days in Onahama?
What is the average length of the day in December in Onahama?
What time are sunrise and sunset in December in Onahama?
How long on average sun shines in December in Onahama?
What is the UV index intensity in December in Onahama?
Average temperature in December
Onahama, Japan
- Average high temperature in December: 9.4°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in December: 4.5°C
The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in December
Onahama, Japan
- Average pressure in December: 1016.2mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.4mbar).
Average wind speed in December
Onahama, Japan
- Average wind speed in December: 19.1km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity in December
Onahama, Japan
- Average humidity in December: 68%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (65%).
Average rainfall in December
Onahama, Japan
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in December
Onahama, Japan
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Onahama, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Onahama, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Onahama, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in December
Onahama, Japan
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Onahama, Japan
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in December
Onahama, Japan
- Average cloud cover in December: 34
The month with the most cloud cover is July (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in December
Onahama, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
Onahama, Japan
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