December weather forecastRouen, France
December
Weather in December
December brings the year to close with the onset of winter in Rouen. This month experiences the first snowfall of 2mm (0.08") since the end of the previous winter. As Rouen's skyline gets adorned with holiday lights, snowflakes add to the city's charm. The streets resonate with festive cheer, only to be complemented by the crisp cold weather. December is all about holiday spirit, cool winds, cozy corners, warm drinks, and the start of another beautiful winter.Temperature
As December unfolds, the average high-temperature reaches a chilly 7.5°C (45.5°F), hinting at a slight fluctuation from the previous month. Rouen registers a subtle dip to an average of 2.9°C (37.2°F) during the nights of December.Humidity
The months with the highest humidity in Rouen, France, are January and December, with an average relative humidity of 89%.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
Months with snowfall in Rouen are January through March, November and December. In December, in Rouen, it is snowing for 1.3 days. Throughout December, 12mm (0.47") of snow is accumulated. Throughout the year, there are 7 snowfall days, and 43mm (1.69") of snow is accumulated.Daylight
December has the shortest days of the year in Rouen, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 08:30 and sunset at 16:59. On the last day of December, sunrise is at 08:51 and sunset at 17:06 CET.
Sunshine
In Rouen, the average sunshine in December is 3.9h.UV index
The months with the lowest UV index in Rouen, France, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 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).
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).
Average humidity in December
Rouen, France
- Average humidity in December: 89%
The 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).
The 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).
The 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: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 54min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
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).
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).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rouen, France
- Average cloud cover in December: 62
The 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).
Average visibility in December
Rouen, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April and December (9km).
The months with the lowest visibility are January, May, June, July, August, September, October and November (8km).
