December weather forecast
Saint-Jean-de-Bournay, France

December

Weather in December

The first month of the winter, December, is still a chilly month in Saint-Jean-de-Bournay, France, with an average temperature ranging between max 6.8°C (44.2°F) and min 1.4°C (34.5°F).

Temperature

December signifies a gentle decline in Saint-Jean-de-Bournay's average high-temperature, easing from a fresh 10.4°C (50.7°F) in November to a frosty 6.8°C (44.2°F). December nights are marked by an average temperature drop to an icy 1.4°C (34.5°F).

Humidity

The most humid month in Saint-Jean-de-Bournay is December, with an average relative humidity of 86%.

Rainfall

In Saint-Jean-de-Bournay, in December, it is raining for 13.1 days, with typically 46mm (1.81") of accumulated precipitation. In Saint-Jean-de-Bournay, during the entire year, the rain falls for 151.5 days and collects up to 504mm (19.84") of precipitation.

Snowfall

January through March, October through December are months with snowfall in Saint-Jean-de-Bournay. In Saint-Jean-de-Bournay, in December, during 4.4 snowfall days, 31mm (1.22") of snow is typically accumulated. In Saint-Jean-de-Bournay, during the entire year, snow falls for 21.4 days and aggregates up to 181mm (7.13") of snow.

Daylight

With an average of 8h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:59 and sunset at 16:57. On the last day of December, in Saint-Jean-de-Bournay, sunrise is at 08:19 and sunset at 17:05 CET.

Sunshine

In December, the average sunshine is 4.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Saint-Jean-de-Bournay. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

Is December cold in Saint-Jean-de-Bournay?
An average high-temperature, in December, in Saint-Jean-de-Bournay, is 6.8°C (44.2°F) and the average low-temperature is 1.4°C (34.5°F).
What is the most humid month in Saint-Jean-de-Bournay?
With an average relative humidity of 86%, December is the most humid month.
What is the average humidity in December in Saint-Jean-de-Bournay?
In Saint-Jean-de-Bournay, the average relative humidity in December is 86%.
How many days does it rain in December in Saint-Jean-de-Bournay?
In Saint-Jean-de-Bournay, in December, during 13.1 rainfall days, 46mm (1.81") of precipitation is typically accumulated.
How much does it snow in Saint-Jean-de-Bournay in December?
In Saint-Jean-de-Bournay, during December, snow falls for 4.4 days and regularly aggregates up to 31mm (1.22") of snow.
What is the month with the shortest days in Saint-Jean-de-Bournay?
With an average of 8h and 48min of daylight, December has the shortest days of the year in Saint-Jean-de-Bournay.
What is the average length of the day in December in Saint-Jean-de-Bournay?
The average day length in December in Saint-Jean-de-Bournay is 8h and 47min.
What time are sunrise and sunset in December in Saint-Jean-de-Bournay?
In December, on the first day of the month, sunrise is at 07:59 and sunset at 16:57. On the last day of the month, in Saint-Jean-de-Bournay, sunrise is at 08:19 and sunset at 17:05 CET.
How long on average sun shines in December in Saint-Jean-de-Bournay?
The average sunshine duration in December in Saint-Jean-de-Bournay, France, is 4.7h.
What is the month with the lowest UV index in Saint-Jean-de-Bournay?
The months with the lowest UV index in Saint-Jean-de-Bournay are January, February, November and December, with an average maximum UV index of 2.
What is the UV index intensity in December in Saint-Jean-de-Bournay?
The average daily maximum UV index in December in Saint-Jean-de-Bournay is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Saint-Jean-de-Bournay, France
  • Average high temperature in December: 6.8°C

The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is January (5.3°C).

  • Average low temperature in December: 1.4°C

The month with the highest average low temperature is July (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (0.2°C).

Average pressure in December
Saint-Jean-de-Bournay, France
  • Average pressure in December: 1021.2mbar

The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

Average wind speed in December
Saint-Jean-de-Bournay, France
  • Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).

Average humidity in December
Saint-Jean-de-Bournay, France
  • Average humidity in December: 86%

The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (71%).

Average rainfall in December
Saint-Jean-de-Bournay, France
  • Average rainfall in December: 46mm

The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is February (25mm).

Average rainfall days in December
Saint-Jean-de-Bournay, France
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is September (10.2 days).

Average snowfall in December
Saint-Jean-de-Bournay, France
  • Average snowfall in December: 31mm

The month with the highest snowfall is November (79mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).

Average snowfall days in December
Saint-Jean-de-Bournay, France
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Saint-Jean-de-Bournay, France
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in December
Saint-Jean-de-Bournay, France
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is August (17.4 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in December
Saint-Jean-de-Bournay, France
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Saint-Jean-de-Bournay, France
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Saint-Jean-de-Bournay, France
  • Average visibility in December: 8km

The months with the highest visibility are February, March, April, May, June, July and August (9km).
The months with the lowest visibility are January, September, October, November and December (8km).

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