December weather forecastKowan, Japan
December
Weather in December
The first month of the winter, December, is still a pleasant month in Kowan, Japan, with an average temperature fluctuating between 18.7°C (65.7°F) and 20.6°C (69.1°F).Temperature
December is characterized by a mild reduction in the average high-temperature, from a warm 24°C (75.2°F) in November to a pleasant 20.6°C (69.1°F). Kowan's December nights exhibit a subtle drop in temperature, averaging at a refreshing 18.7°C (65.7°F), closely aligned with the daytime highs.Humidity
In December, the average relative humidity is 73%.Rainfall
In Kowan, in December, it is raining for 20.7 days, with typically 77mm (3.03") of accumulated precipitation. Throughout the year, there are 228 rainfall days, and 1405mm (55.31") of precipitation is accumulated.Daylight
With an average of 10h and 30min of daylight, December has the shortest days of the year in Kowan.On the first day of the month, sunrise is at 06:59 and sunset at 17:36. On the last day of December, in Kowan, sunrise is at 07:16 and sunset at 17:48 JST.
Sunshine
In Kowan, Japan, the average sunshine in December is 4.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during December translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kowan, Japan
- Average high temperature in December: 20.6°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 (19°C).
- Average low temperature in December: 18.7°C
The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in December
Kowan, Japan
- Average pressure in December: 1019.8mbar
The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in December
Kowan, Japan
- Average wind speed in December: 27.9km/h
The windiest month (with the highest average wind speed) is December (27.9km/h).
The calmest month (with the lowest average wind speed) is May (19.8km/h).
Average humidity in December
Kowan, 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
Kowan, Japan
- Average rainfall in December: 77mm
The wettest month (with the highest rainfall) is June (207mm).
The driest month (with the least rainfall) is February (58mm).
Average rainfall days in December
Kowan, Japan
- Average rainfall days in December: 20.7 days
The months with the highest number of rainy days are January and June (21.5 days).
The month with the least rainy days is April (16.4 days).
Average daylight in December /
Average sunshine in December
Kowan, 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 24min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Kowan, Japan
- Average sunshine days in December: 6.4 days
The month with the most sunshine days is April (11.3 days).
The month with the least sunshine days is January (6 days).
Average UV index in December
Kowan, Japan
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in December
Kowan, Japan
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Kowan, 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).
