Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Kumamoto's progression into December includes a drop in the average high-temperature, from a refreshing 16.5°C (61.7°F) in November to a fresh 10.4°C (50.7°F). During the month of December, an average temperature of 4.4°C (39.9°F) is noted during the nights.Humidity
The average relative humidity in December is 75%.Rainfall
In Kumamoto, in December, it is raining for 12.1 days, with typically 49mm (1.93") of accumulated precipitation. Throughout the year, there are 179.9 rainfall days, and 1028mm (40.47") of precipitation is accumulated.Snowfall
Months with snowfall in Kumamoto are January through March and December. December is the first month it typically snows in Kumamoto, Japan. Throughout December, in the average 1.6 snowfall days, it receives 13mm (0.51") of snow. Throughout the year, there are 7 snowfall days, and 38mm (1.5") of snow is accumulated.Sea temperature
In Kumamoto, the average seawater temperature in December is 21°C (69.8°F).Note: Swimming is not a pleasant activity for most individuals in 21°C (69.8°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
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 07:01 and sunset at 17:10. On the last day of December, in Kumamoto, sunrise is at 07:19 and sunset at 17:21 JST.
Sunshine
In December, the average sunshine in Kumamoto is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average December temperature in Kumamoto?
What is the average humidity in December in Kumamoto?
How much does it rain in Kumamoto in December?
When does it start to snow in Kumamoto?
What is the sea temperature in December in Kumamoto?
What is the month with the shortest days in Kumamoto?
How many hours of daylight does Kumamoto have in December?
What time are sunrise and sunset in December in Kumamoto?
How many hours of sunshine does Kumamoto have in December?
When is the lowest UV index in Kumamoto?
What is the UV index reading in December in Kumamoto?
Average temperature in December
Kumamoto, Japan
- Average high temperature in December: 10.4°C
The warmest month (with the highest average high temperature) is August (30.4°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 4.4°C
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in December
Kumamoto, Japan
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is January (1021.8mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in December
Kumamoto, Japan
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is June (7km/h).
Average humidity in December
Kumamoto, Japan
- Average humidity in December: 75%
The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are March and April (72%).
Average rainfall in December
Kumamoto, Japan
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is June (216mm).
The driest month (with the least rainfall) is January (36mm).
Average rainfall days in December
Kumamoto, Japan
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is January (10.5 days).
Average snowfall in December
Kumamoto, Japan
- Average snowfall in December: 13mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Kumamoto, Japan
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (3.3 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
Kumamoto, Japan
- Average sea temperature in December: 21°C
The best month for swimming (with the highest average sea temperature) is August (28°C).
The coldest months (with the lowest average sea temperature) are February and March (18°C).
Average daylight in December /
Average sunshine in December
Kumamoto, 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: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Kumamoto, Japan
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is July (4.9 days).
Average UV index in December
Kumamoto, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Kumamoto, Japan
- Average cloud cover in December: 41
The month with the most cloud cover is June (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
Kumamoto, Japan
- Average visibility in December: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are June and July (8km).
Kumamoto, Japan
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