December weather forecastHérin, France

December

Weather in December

The first month of the winter, December, is still a chilly month in Hérin, France, with an average temperature varying between 2.3°C (36.1°F) and 6.5°C (43.7°F).

Temperature

In Hérin, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's chilly 9.7°C (49.5°F) to a still frosty 6.5°C (43.7°F). A minor drop in temperature is observed from daytime highs during the nights of December, averaging a cold 2.3°C (36.1°F).

Humidity

December is the most humid month, with an average relative humidity of 89%.

Rainfall

The month with the most rainfall in Hérin, France, is December, when the rain falls for 17.2 days and typically aggregates up to 67mm (2.64") of precipitation.

Snowfall

January through March, November and December are months with snowfall in Hérin. In December, in Hérin, France, it is snowing for 2.8 days. Throughout December, 23mm (0.91") of snow is accumulated. Throughout the year, there are 12.6 snowfall days, and 97mm (3.82") of snow is accumulated.

Daylight

With an average of 8h and 6min of daylight, December has the shortest days of the year in Hérin.
On the first day of December, sunrise is at 08:25 and sunset at 16:45. On the last day of the month, sunrise is at 08:46 and sunset at 16:52 CET.

Sunshine

The average sunshine in December is 3.9h.

UV index

The months with the lowest UV index in Hérin, France, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during December leads to these advisories:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

An average high-temperature, in December, in Hérin, is 6.5°C (43.7°F) and the average low-temperature is 2.3°C (36.1°F).

With an average relative humidity of 89%, December is the most humid month in Hérin, France.

In December, the average relative humidity in Hérin is 89%.

The month with the most rainfall in Hérin, France, is December, when the rain falls for 17.2 days and typically aggregates up to 67mm (2.64") of precipitation.

In Hérin, in December, it is raining for 17.2 days, with typically 67mm (2.64") of accumulated precipitation.

In Hérin, during December, snow falls for 2.8 days and regularly aggregates up to 23mm (0.91") of snow.

December has the shortest days of the year in Hérin, with an average of 8h and 6min of daylight.

In December, the average day length in Hérin is 8h and 7min.

On the first day of December in Hérin, sunrise is at 08:25 and sunset at 16:45. On the last day of the month, sunrise is at 08:46 and sunset at 16:52 CET.

The average sunshine duration in December is 3.9h.

The months with the lowest UV index in Hérin are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Hérin, France

  • Average high temperature in December: 6.5°C

The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (5.5°C).

  • Average low temperature in December: 2.3°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).

Average pressure in December
Hérin, France

  • Average pressure in December: 1016.7mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).

Average wind speed in December
Hérin, France

  • Average wind speed in December: 18.2km/h

The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).

Average humidity in December
Hérin, France

  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).

Average rainfall in December
Hérin, France

  • Average rainfall in December: 67mm

The wettest month (with the highest rainfall) is December (67mm).
The driest month (with the least rainfall) is September (29mm).

Average rainfall days in December
Hérin, France

  • Average rainfall days in December: 17.2 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is September (13.5 days).

Average snowfall in December
Hérin, France

  • Average snowfall in December: 23mm

The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Hérin, France

  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Hérin, France

  • Average daylight in December: 8h and 6min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in December: 3h and 54min

The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Hérin, France

  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is September (12.7 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in December
Hérin, France

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Hérin, France

  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 42).

Average visibility in December
Hérin, France

  • Average visibility in December: 9km

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