December weather forecastShowajima, Japan
December
Weather in December
The first month of the winter, December, is also a fresh month in Showajima, Japan, with an average temperature ranging between max 11.5°C (52.7°F) and min 6.4°C (43.5°F).Temperature
A change in temperatures is noted as November gives way to December, with average highs reducing from a refreshing 16.5°C (61.7°F) to a cool 11.5°C (52.7°F). During December, the average low-temperature in Showajima is a frosty 6.4°C (43.5°F).Humidity
In Showajima, Japan, the average relative humidity in December is 64%.Rainfall
The month with the least rainfall in Showajima is December, when the rain falls for 9.1 days and typically collects 36mm (1.42") of precipitation.Snowfall
In Showajima, snow does not fall in April through December.Daylight
The month with the shortest days in Showajima, Japan, is December, with an average of 9h and 48min of daylight.On the first day of December in Showajima, sunrise is at 06:32 and sunset at 16:28. On the last day of the month, sunrise is at 06:50 and sunset at 16:37 JST.
Sunshine
In December, the average sunshine is 6.1h.UV index
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Showajima. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Showajima, Japan
- Average high temperature in December: 11.5°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in December: 6.4°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 (3.4°C).
Average pressure in December
Showajima, Japan
- Average pressure in December: 1016.2mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Showajima, Japan
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is April (17.3km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity in December
Showajima, Japan
- Average humidity in December: 64%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Showajima, Japan
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is December (36mm).
Average rainfall days in December
Showajima, Japan
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Showajima, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (37mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Showajima, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Showajima, Japan
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in December
Showajima, Japan
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Showajima, Japan
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in December
Showajima, Japan
- Average cloud cover in December: 32
The months with the most cloud cover are June and October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in December
Showajima, 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).





