December weather forecastSaiku, Japan
December
Weather in December
The first month of the winter, December, is still a cool month in Saiku, Japan, with temperature in the range of an average low of 5.7°C (42.3°F) and an average high of 10.9°C (51.6°F).Temperature
The arrival of December corresponds with a shift in temperature, down from a comfortable 16.2°C (61.2°F) in November to a fresh 10.9°C (51.6°F). During December, the average low-temperature is recorded at a cold 5.7°C (42.3°F).Humidity
The average relative humidity in December is 73%.Rainfall
In Saiku, in December, during 7.1 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Saiku, during the entire year, the rain falls for 147.1 days and collects up to 999mm (39.33") of precipitation.Snowfall
In Saiku, snow does not fall in January, March through December.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:42 and sunset at 16:43. On the last day of December, in Saiku, sunrise is at 07:00 and sunset at 16:53 JST.
Sunshine
The average sunshine in December is 6.1h.UV index
In Saiku, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 3 suggests these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saiku, Japan
- Average high temperature in December: 10.9°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (8.6°C).
- Average low temperature in December: 5.7°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in December
Saiku, Japan
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is November (1019mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in December
Saiku, Japan
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is January (17.1km/h).
The calmest month (with the lowest average wind speed) is July (9.3km/h).
Average humidity in December
Saiku, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January and February (70%).
Average rainfall in December
Saiku, Japan
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is October (170mm).
The driest months (with the least rainfall) are January and February (31mm).
Average rainfall days in December
Saiku, Japan
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in December
Saiku, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Saiku, Japan
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Saiku, Japan
- Average daylight in December: 9h and 54min
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: 6h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in December
Saiku, Japan
- Average sunshine days in December: 23.4 days
The month with the most sunshine days is January (25 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in December
Saiku, Japan
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Saiku, Japan
- Average cloud cover in December: 30
The month with the most cloud cover is June (Cloud cover 44).
The months with the least cloud cover are November and December (Cloud cover 30).
Average visibility in December
Saiku, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).





