December weather forecastKainan, Japan
December
Weather in December
December, the first month of the winter in Kainan, is still a cool month, with an average temperature ranging between max 11°C (51.8°F) and min 7.3°C (45.1°F).Temperature
A shift in Kainan's weather is observed as November turns into December, with the average high temperature reducing from a comfortable 16.2°C (61.2°F) to a cool 11°C (51.8°F). A mild drop to an average of 7.3°C (45.1°F) marks the nights during December.Humidity
The average relative humidity in December is 71%.Rainfall
In December, in Kainan, the rain falls for 16.3 days. Throughout December, 44mm (1.73") of precipitation is accumulated. In Kainan, Japan, during the entire year, the rain falls for 173.9 days and collects up to 658mm (25.91") of precipitation.Snowfall
January through March and December are months with snowfall in Kainan. December is the first month it typically snows. Throughout December, in the average 1.5 snowfall days, it receives 6mm (0.24") of snow. In Kainan, during the entire year, snow falls for 9 days and aggregates up to 36mm (1.42") of snow.Sea temperature
In Kainan, Japan, in December, the average water temperature is 19.1°C (66.4°F).Note: Most people do not find swimming enjoyable in water of 19.1°C (66.4°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the shortest days of the year in Kainan, Japan, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:46 and sunset at 16:49. On the last day of December, in Kainan, sunrise is at 07:04 and sunset at 16:59 JST.
Sunshine
The average sunshine in December is 5.3h.UV index
The months with the lowest UV index in Kainan are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kainan, Japan
- Average high temperature in December: 11°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in December: 7.3°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (4.8°C).
Average pressure in December
Kainan, Japan
- Average pressure in December: 1019.4mbar
The months with the highest atmospheric pressure are January and February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).
Average wind speed in December
Kainan, Japan
- Average wind speed in December: 18.6km/h
The windiest month (with the highest average wind speed) is January (19.1km/h).
The calmest month (with the lowest average wind speed) is June (11km/h).
Average humidity in December
Kainan, Japan
- Average humidity in December: 71%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (70%).
Average rainfall in December
Kainan, Japan
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is July (111mm).
The driest months (with the least rainfall) are January and February (30mm).
Average rainfall days in December
Kainan, Japan
- Average rainfall days in December: 16.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is May (10.8 days).
Average snowfall in December
Kainan, Japan
- Average snowfall in December: 6mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Kainan, Japan
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Kainan, Japan
- Average sea temperature in December: 19.1°C
The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest month (with the lowest average sea temperature) is February (15.6°C).
Average daylight in December /
Average sunshine in December
Kainan, 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: 5h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Kainan, Japan
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is May (18.1 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in December
Kainan, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Kainan, Japan
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Kainan, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
