December weather forecastImadomari, Japan
December
Weather in December
December, the first month of the winter in Imadomari, is also an agreeable month, with an average temperature fluctuating between 20.2°C (68.4°F) and 18.3°C (64.9°F).Temperature
The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 23.6°C (74.5°F) in November to an agreeable 20.2°C (68.4°F). Throughout December, Imadomari observes a steady low-temperature average of 18.3°C (64.9°F), reflecting a minor dip from daytime highs.Humidity
The average relative humidity in December in Imadomari is 73%.Rainfall
In December, the rain falls for 20.4 days. Throughout December, 78mm (3.07") of precipitation is accumulated. Throughout the year, in Imadomari, there are 229.8 rainfall days, and 1512mm (59.53") of precipitation is accumulated.Daylight
With an average of 10h and 30min of daylight, December has the shortest days of the year.On the first day of December in Imadomari, sunrise is at 06:59 and sunset at 17:34. On the last day of the month, sunrise is at 07:16 and sunset at 17:46 JST.
Sunshine
The average sunshine in December in Imadomari is 4.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 4 during December translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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
Imadomari, 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).





