December weather forecastYonamine, Japan
December
Weather in December
The first month of the winter, December, is still a pleasant month in Yonamine, Japan, with an average temperature ranging between min 18.3°C (64.9°F) and max 20.2°C (68.4°F).Temperature
Yonamine's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's warm 23.6°C (74.5°F) to an agreeable 20.2°C (68.4°F). Maintaining close parity with daytime warmth, the average nocturnal temperature in Yonamine, Japan, during December stays at an enjoyable 18.3°C (64.9°F).Humidity
In December, the average relative humidity is 73%.Rainfall
In December, the rain falls for 20.4 days. Throughout December, 78mm (3.07") of precipitation is accumulated. In Yonamine, during the entire year, the rain falls for 229.8 days and collects up to 1512mm (59.53") of precipitation.Daylight
The month with the shortest days in Yonamine is December, with an average of 10h and 30min of daylight.On the first day of the month, sunrise is at 06:59 and sunset at 17:34. On the last day of December, sunrise is at 07:16 and sunset at 17:46 JST.
Sunshine
In December, the average sunshine is 4.2h.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index in Yonamine. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in December translates into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yonamine, Japan
- Average high temperature in December: 20.2°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.6°C).
- Average low temperature in December: 18.3°C
The month with the highest average low temperature is August (27.8°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in December
Yonamine, Japan
- Average pressure in December: 1020mbar
The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is August (1006.7mbar).
Average wind speed in December
Yonamine, Japan
- Average wind speed in December: 25.7km/h
The windiest month (with the highest average wind speed) is December (25.7km/h).
The calmest month (with the lowest average wind speed) is May (18.4km/h).
Average humidity in December
Yonamine, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).
Average rainfall in December
Yonamine, Japan
- Average rainfall in December: 78mm
The wettest month (with the highest rainfall) is June (228mm).
The driest month (with the least rainfall) is January (63mm).
Average rainfall days in December
Yonamine, Japan
- Average rainfall days in December: 20.4 days
The month with the highest number of rainy days is June (22.6 days).
The month with the least rainy days is November (16.2 days).
Average daylight in December /
Average sunshine in December
Yonamine, Japan
- Average daylight in December: 10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Yonamine, Japan
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is May (11.1 days).
The month with the least sunshine days is June (5.4 days).
Average UV index in December
Yonamine, Japan
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Yonamine, Japan
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Yonamine, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).
