December weather forecastSunagawa, Japan
December
Weather in December
December, the first month of the winter in Sunagawa, is still a freezing cold month, with an average temperature varying between -7°C (19.4°F) and -1.7°C (28.9°F).Temperature
Sunagawa's December weather comes with a decrease in average high-temperatures, moving from an icy 4.6°C (40.3°F) in November to a freezing cold -1.7°C (28.9°F). Throughout the month of December, Sunagawa witnesses an average low-temperature of -7°C (19.4°F).Humidity
The average relative humidity in December is 91%.Rainfall
In Sunagawa, Japan, in December, it is raining for 4.4 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, in Sunagawa, there are 120.7 rainfall days, and 404mm (15.91") of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Sunagawa, Japan. The month with the most snowfall is December, when snow falls for 22 days and typically aggregates up to 227mm (8.94") of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 06:45 and sunset at 15:57. On the last day of the month, sunrise is at 07:05 and sunset at 16:05 JST.
Sunshine
In December, the average sunshine is 1.7h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sunagawa, Japan
- Average high temperature in December: -1.7°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (-4.1°C).
- Average low temperature in December: -7°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in December
Sunagawa, Japan
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is November (1015.7mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in December
Sunagawa, Japan
- Average wind speed in December: 10.8km/h
The windiest months (with the highest average wind speed) are April and December (10.8km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in December
Sunagawa, Japan
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Sunagawa, Japan
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is August (69mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in December
Sunagawa, Japan
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is August (17 days).
The month with the least rainy days is January (2 days).
Average snowfall in December
Sunagawa, Japan
- Average snowfall in December: 227mm
The month with the highest snowfall is December (227mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Sunagawa, Japan
- Average snowfall days in December: 22 days
The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sunagawa, Japan
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 1h and 42min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in December
Sunagawa, Japan
- Average sunshine days in December: 7.8 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (7.8 days).
Average UV index in December
Sunagawa, Japan
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Sunagawa, Japan
- Average cloud cover in December: 83
The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is September (Cloud cover 46).
Average visibility in December
Sunagawa, Japan
- Average visibility in December: 7km
The months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).
