December weather forecast
Rouen, France

Weather in December

December, the first month of the winter, in Rouen, is also a frosty month, with temperature in the range of an average low of 2.9°C (37.2°F) and an average high of 7.5°C (45.5°F).

Temperature

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

Rainfall

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

Snowfall

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

Daylight

With an average of 8.3h of daylight, December has the shortest days of the year in Rouen, France.

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 reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

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?

The average relative humidity in December in Rouen is 89%.

What is the wettest month in Rouen?

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

How many days does it rain in December in Rouen?

In Rouen, France, in December, during 16.2 rainfall days, 60mm (2.36") of precipitation is typically accumulated.

How much does it snow in Rouen in December?

In Rouen, during December, snow falls for 1.3 days and regularly aggregates up to 12mm (0.47") of snow.

What is the month with the shortest days in Rouen?

December has the shortest days of the year in Rouen, France, with an average of 8.3h of daylight.

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

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

How long on average sun shines in December in Rouen?

The average sunshine in December is 3.9h.

What is the month with 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.

What is the UV index intensity in December in Rouen?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Rouen, France

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).

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Average pressure in December
Rouen, France

Average pressure in December - Rouen, France
  • Average pressure in December: 1017.3mbar

The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).

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Average wind speed in December
Rouen, France

Average wind speed in December - Rouen, France
  • Average wind speed in December: 17.3km/h

The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).

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Average humidity in December
Rouen, France

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%).

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Average rainfall in December
Rouen, France

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).

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Average rainfall days in December
Rouen, France

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).

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Average snowfall in December
Rouen, France

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).

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Average snowfall days in December
Rouen, France

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).

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

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).

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Average sunshine days in December
Rouen, France

Average sunshine days in December - Rouen, France
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in December
Rouen, France

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).

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Average cloud cover in December
Rouen, France

Average cloud cover in December - Rouen, France
  • Average cloud cover in December: 62

Months with the most cloud cover are January and November (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 46).

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Average visibility in December
Rouen, France

Average visibility in December - Rouen, France
  • Average visibility in December: 9km

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

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