December weather forecastOtera, Japan

December

Weather in December

December, the first month of the winter in Otera, is also a fresh month, with an average temperature fluctuating between 7°C (44.6°F) and 11.1°C (52°F).

Temperature

The arrival of December signals a subtle shift in temperature, down from a refreshing 15.9°C (60.6°F) in November to a fresh 11.1°C (52°F). Otera's December nights demonstrate minimal variation from the daytime temperatures, with an average of 7°C (44.6°F).

Humidity

In Otera, the average relative humidity in December is 71%.

Rainfall

In Otera, during December, the rain falls for 12 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, there are 166.3 rainfall days, and 700mm (27.56") of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:49 and sunset at 16:52. On the last day of December, sunrise is at 07:07 and sunset at 17:02 JST.

Sunshine

In December, the average sunshine is 5.8h.

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 unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

In December, in Otera, the average high-temperature is 11.1°C (52°F), and the average low-temperature is 7°C (44.6°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 35°C (95°F).

The average relative humidity in December is 71%.

In Otera, in December, during 12 rainfall days, 32mm (1.26") of precipitation is typically accumulated.

In Otera, snow does not fall in March through December.

In Otera, Japan, in December, it doesn't snow. In January, it regularly snows.

With an average of 9h and 54min of daylight, December has the shortest days of the year in Otera, Japan.

In December, the average day length is 9h and 56min.

On the first day of December, sunrise is at 06:49 and sunset at 16:52. On the last day of the month, sunrise is at 07:07 and sunset at 17:02 JST.

In Otera, the average sunshine duration in December is 5.8h.

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal 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 snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Otera, Japan

  • Average high temperature in December: 11.1°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in December: 7°C

The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (4.8°C).

Average pressure in December
Otera, Japan

  • Average pressure in December: 1019.8mbar

The month with the highest atmospheric pressure is January (1020.1mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).

Average wind speed in December
Otera, Japan

  • Average wind speed in December: 20km/h

The windiest month (with the highest average wind speed) is January (20.5km/h).
The calmest month (with the lowest average wind speed) is June (10.1km/h).

Average humidity in December
Otera, Japan

  • Average humidity in December: 71%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (69%).

Average rainfall in December
Otera, Japan

  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is July (112mm).
The driest months (with the least rainfall) are January and February (24mm).

Average rainfall days in December
Otera, Japan

  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is July (20.7 days).
The months with the least rainy days are January and February (10 days).

Average snowfall in December
Otera, Japan

  • Average snowfall in December: 0mm

The month with the highest snowfall is February (11mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Otera, Japan

  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Otera, Japan

  • Average daylight in December: 9h and 54min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 5h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in December
Otera, Japan

  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is May (17.5 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in December
Otera, Japan

  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Otera, Japan

  • Average cloud cover in December: 36

The month with the most cloud cover is June (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Otera, Japan

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).