December weather forecastYogi, Japan

December

Weather in December

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

Temperature

Yogi, Japan, records a mild change in average high-temperature during December, easing from a moderately hot 23.9°C (75°F) in November to an agreeable 20.6°C (69.1°F). The nights of December cool down to an average low of 18.8°C (65.8°F), subtly lower than daytime highs.

Humidity

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

Rainfall

In December, in Yogi, Japan, the rain falls for 21.2 days. Throughout December, 81mm (3.19") of precipitation is accumulated. 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 Yogi, Japan, with an average of 10h and 30min of daylight.
On the first day of the month, sunrise is at 06:59 and sunset at 17:36. On the last day of December, in Yogi, sunrise is at 07:16 and sunset at 17:47 JST.

Sunshine

In December, the average sunshine 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 reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 4 in December translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

December temperatures in Yogi vary between a high-temperature of 20.6°C (69.1°F) and a low-temperature of 18.8°C (65.8°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 33°C (91.4°F).

The average relative humidity in December in Yogi, Japan, is 73%.

In Yogi, in December, during 21.2 rainfall days, 81mm (3.19") of precipitation is typically accumulated.

December has the shortest days of the year in Yogi, Japan, with an average of 10h and 30min of daylight.

The average day length in December in Yogi is 10h and 32min.

In December, on the first day of the month, sunrise is at 06:59 and sunset at 17:36. On the last day of the month, in Yogi, sunrise is at 07:16 and sunset at 17:47 JST.

In Yogi, Japan, the average sunshine duration in December is 4.4h.

With an average maximum UV index of 4, December is the month with the lowest UV index in Yogi.

In December, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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
Yogi, 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).