Average humidity in Rouen
The mean monthly relative humidity over the year in Rouen (Upper Normandy), France.
- On average, December is the most humid month, at 91.0%.
- On average, April is the least humid month, at 78.0%.
- The average annual percentage of humidity is 85%.
Forecast for Rouen
overcast and no rain
overcast and no rain
broken clouds and slight rain