Rouen
France
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Rouen, France

December, the first month of the winter, in Rouen, is still a chilly month, with average temperature ranging between max 7.5°C (45.5°F) and min 2.9°C (37.2°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a chilly 7.5°C (45.5°F). In December, in Rouen, the average low-temperature is 2.9°C (37.2°F).

Humidity

January and December, with an average relative humidity of 89%, are most humid months in Rouen.

Rainfall

The month with the most rainfall in Rouen is December when the rain falls for 16.2 days and typically aggregates up to 60mm (2.36") of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Rouen, in December, snow falls for 1.3 days, with typically accumulated 12mm (0.47") of snow. In Rouen, during the entire year, snow falls for 7 days, and aggregates up to 43mm (1.69") of snow.

Daylight

The month with the shortest days in Rouen is December, with an average of 8.3h of daylight.

Sunshine

The average sunshine in Rouen is 3.9h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Rouen?

The average high-temperature, in December, is 7.5°C (45.5°F), while the average low-temperature is 2.9°C (37.2°F).

What is the most humid month in Rouen?

Months with the highest humidity in Rouen, France, are January and December, with an average relative humidity of 89%.

What is the average humidity in December in Rouen?

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

How many days does it rain in December in Rouen?

In December, in Rouen, France, the rain falls for 16.2 days. Throughout December, 60mm (2.36") of precipitation is accumulated.

What is the rainiest month in Rouen?

December is the month with the most rainfall in Rouen. Rain falls for 16.2 days and accumulates 60mm (2.36") of precipitation.

How much does it snow in Rouen in December?

In December, in Rouen, France, it is snowing for 1.3 days. Throughout December, 12mm (0.47") of snow is accumulated.

What is the month with the shortest days in Rouen?

The month with the shortest days is December, with an average of 8.3h of daylight.

What is the average length of the day in December in Rouen?

In December, the average length of the day in Rouen, France, is 8.3h.

How long on average sun shines in December in Rouen?

In December, the average sunshine in Rouen, France, is 3.9h.

When is the lowest UV index in Rouen?

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

What is the UV index reading in December in Rouen?

In Rouen, France, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.
Average temperature in December - Rouen, France
  • Average high temperature in December: 7.5°C

The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (6.4°C).

  • Average low temperature in December: 2.9°C

The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).

Average humidity in December - Rouen, France
  • Average humidity in December: 89%

Months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (79%).

Average rainfall in December - Rouen, France
  • Average rainfall in December: 60mm

The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is September (24mm).

Average rainfall days in December - Rouen, France
  • Average rainfall days in December: 16.2 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (12.1 days).

Average snowfall in December - Rouen, France
  • Average snowfall in December: 12mm

The month with the highest snowfall is January (14mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December - Rouen, France
  • Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is February (2.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Rouen, France
  • Average daylight in December: 8.3h

The month with the longest days is June (Average daylight: 16.2h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in December: 3.9h

Months with the most sunshine are June and July (Average sunshine: 9h).
The month with the least sunshine is January (Average sunshine: 3.6h).

Average UV index in December - Rouen, France
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).