December weather forecast
Nanjo, Japan

December

Weather in December

December, the first month of the winter in Nanjo, is still a pleasant month, with an average temperature fluctuating between 20.6°C (69.1°F) and 18.8°C (65.8°F).

Temperature

Nanjo in December undergoes a slight reduction in the average high-temperature, shifting from November's moderately hot 23.9°C (75°F) to a pleasant 20.6°C (69.1°F). In Nanjo, December nights maintain a consistent temperature, with an average low of 18.8°C (65.8°F).

Humidity

In Nanjo, the average relative humidity in December is 73%.

Rainfall

In Nanjo, during December, the rain falls for 21.2 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, there are 227.4 rainfall days, and 1405mm (55.31") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Nanjo, with an average of 10h and 30min of daylight.
On the first day of December, sunrise is at 06:59 and sunset at 17:36. On the last day of the month, sunrise is at 07:16 and sunset at 17:47 JST.

Sunshine

In Nanjo, the average sunshine in December is 4.4h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 4 in December translates into these instructions:
Ensure safety - Sun damage prevention is strongly urged. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Frequently asked questions

What is the average December temperature?
In Nanjo, 20.6°C (69.1°F) is the average high-temperature and 18.8°C (65.8°F) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 33°C (91.4°F).
What is the average humidity in December in Nanjo?
The average relative humidity in December is 73%.
How much does it rain in December?
In Nanjo, during December, the rain falls for 21.2 days and regularly aggregates up to 81mm (3.19") of precipitation.
What is the month with the shortest days?
With an average of 10h and 30min of daylight, December has the shortest days of the year in Nanjo.
How many hours of daylight does Nanjo have in December?
In Nanjo, the average day length in December is 10h and 32min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 06:59 and sunset at 17:36. On the last day of the month, sunrise is at 07:16 and sunset at 17:47 JST.
How many hours of sunshine does Nanjo have in December?
The average sunshine duration in December is 4.4h.
What is the month with the lowest UV index in Nanjo?
December is the month with the lowest UV index, with an average maximum UV index of 4.
What is the UV index intensity in December?
In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Nanjo, Japan
Average temperature in December
Nanjo, 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 (18.9°C).

  • Average low temperature in December: 18.8°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 (17°C).

Average pressure in December - Nanjo, Japan
Average pressure in December
Nanjo, 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 - Nanjo, Japan
Average wind speed in December
Nanjo, Japan
  • Average wind speed in December: 28.4km/h

The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).

Average humidity in December - Nanjo, Japan
Average humidity in December
Nanjo, Japan
  • Average humidity in December: 73%

The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).

Average rainfall in December - Nanjo, Japan
Average rainfall in December
Nanjo, Japan
  • Average rainfall in December: 81mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).

Average rainfall days in December - Nanjo, Japan
Average rainfall days in December
Nanjo, Japan
  • Average rainfall days in December: 21.2 days

The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).

Average daylight in December / Average sunshine in December - Nanjo, Japan
Average daylight in December /
Average sunshine in December
Nanjo, Japan
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 4h and 2min

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 - Nanjo, Japan
Average sunshine days in December
Nanjo, Japan
  • Average sunshine days in December: 5.7 days

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).

Average UV index in December - Nanjo, Japan
Average UV index in December
Nanjo, 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 - Nanjo, Japan
Average cloud cover in December
Nanjo, 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 - Nanjo, Japan
Average visibility in December
Nanjo, 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).

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