December weather forecastSasebo, Japan
December weather for Sasebo, Japan: In Sasebo, Japan, during December, the rain falls for 16.4 days and regularly aggregates up to 53mm (2.09") of precipitation. December has the shortest days of the year in Sasebo, Japan, with an average of 10h and 0min of daylight.
December
Weather in December
As the year comes to a close, Sasebo experiences the onset of winter in December. Temperatures continue their downward trend from November. The city experiences more frequent rainfall, accompanied by sparse snowfall. Despite the gloomy weather, the holiday spirit and festive lighting across the city make December a memorable time to visit Sasebo. As the year ends, the city prepares to enter another cycle of seasons.Temperature
In Sasebo, the average high-temperature in December decreases from an enjoyable 16.9°C (62.4°F) in November to a fresh 11.5°C (52.7°F). During December, Sasebo's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 7.5°C (45.5°F).Humidity
The average relative humidity in December in Sasebo is 73%.Rainfall
In Sasebo, Japan, during December, the rain falls for 16.4 days and regularly aggregates up to 53mm (2.09") of precipitation. In Sasebo, during the entire year, the rain falls for 169 days and collects up to 900mm (35.43") of precipitation.Snowfall
Months with snowfall in Sasebo are January, February and December. December is the first month it typically snows in Sasebo. Throughout December, in the average 1 snowfall days, it receives 4mm (0.16") of snow. In Sasebo, Japan, during the entire year, snow falls for 5.1 days and aggregates up to 14mm (0.55") of snow.Sea temperature
In December, the average sea temperature is 18.4°C (65.1°F).Note: In water with a temperature of 18.4°C (65.1°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 07:06 and sunset at 17:13. On the last day of December, sunrise is at 07:24 and sunset at 17:24 JST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.5h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in Sasebo. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 during December translates into the following guidance:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sasebo, Japan
- Average high temperature in December: 11.5°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in December: 7.5°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in December
Sasebo, Japan
- Average pressure in December: 1021.7mbar
The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008mbar).
Average wind speed in December
Sasebo, Japan
- Average wind speed in December: 16.7km/h
The windiest months (with the highest average wind speed) are January and December (16.7km/h).
The calmest month (with the lowest average wind speed) is June (10.6km/h).
Average humidity in December
Sasebo, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Sasebo, Japan
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is July (192mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in December
Sasebo, Japan
- Average rainfall days in December: 16.4 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is May (9.5 days).
Average snowfall in December
Sasebo, Japan
- Average snowfall in December: 4mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Sasebo, Japan
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is January (2.6 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
Sasebo, Japan
- Average sea temperature in December: 18.4°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 March (14.7°C).
Average daylight in December /
Average sunshine in December
Sasebo, Japan
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in December
Sasebo, Japan
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is May (20.2 days).
The months with the least sunshine days are July and December (9.5 days).
Average UV index in December
Sasebo, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Sasebo, Japan
- Average cloud cover in December: 51
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in December
Sasebo, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
