Climate averages 1991–2020
Rouen weather
in December.
A cold, moderately wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Rouen: daytime highs average 7.7°C and nights cool to about 3.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 81 mm of rain on roughly 13 days, which makes December a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 8 h 15 min on an average December day.
The nearest other city in this atlas is Le Havre (72 km away). In December its highs average 8.5°C, 0.8°C warmer than Rouen, with 121 mm of rain.
Among the 57 cities listed in France, Rouen ranks joint 27th of 57 for the warmest December highs and 42nd of 57 for the driest December (rainfall, lowest first). The mean December high of those 57 cities is 8.5°C; Rouen is 0.8°C cooler than that mean.
From December to January, average highs fall by 0.4°C to 7.3°C, and monthly rainfall falls from 81 mm to 63 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rouen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C2.5°C | 2.5°C | 63 | 11.8 | 8.79 h |
| February | 8.3°C2.3°C | 2.3°C | 56 | 11.1 | 10.110 h |
| March | 11.3°C4.0°C | 4.0°C | 60 | 11.5 | 11.912 h |
| April | 14.4°C6.0°C | 6.0°C | 62 | 11.3 | 13.714 h |
| May | 17.6°C9.3°C | 9.3°C | 66 | 12.0 | 15.315 h |
| June | 20.6°C12.3°C | 12.3°C | 65 | 11.0 | 16.216 h |
| July | 22.7°C14.4°C | 14.4°C | 59 | 10.9 | 15.816 h |
| August | 22.7°C14.5°C | 14.5°C | 65 | 10.6 | 14.414 h |
| September | 19.7°C12.0°C | 12.0°C | 52 | 9.4 | 12.713 h |
| October | 15.6°C9.4°C | 9.4°C | 72 | 12.3 | 10.811 h |
| November | 10.7°C5.8°C | 5.8°C | 69 | 12.7 | 9.29 h |
| December, selected | 7.7°C3.1°C | 3.1°C | 81 | 13.3 | 8.38 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Le Havre in DecemberFrance · 72 kmHigh 8.5°C · Low 4.8°C · 121 mm rain
- Cergy-Pontoise in DecemberFrance · 84 kmHigh 7.4°C · Low 2.7°C · 70 mm rain
- Argenteuil in DecemberFrance · 100 kmHigh 7.5°C · Low 2.7°C · 71 mm rain
- Amiens in DecemberFrance · 100 kmHigh 7.3°C · Low 2.7°C · 76 mm rain
- Saint-Quentin-en-Yvelines in DecemberFrance · 100 kmHigh 6.9°C · Low 2.0°C · 68 mm rain
- Versailles in DecemberFrance · 104 kmHigh 7.0°C · Low 2.3°C · 68 mm rain
- Boulogne-Billancourt in DecemberFrance · 107 kmHigh 7.7°C · Low 2.9°C · 68 mm rain
- Caen in DecemberFrance · 110 kmHigh 8.5°C · Low 4.0°C · 74 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rouen) is explained once on the Rouen year overview and on the Sources, method and limits page.