Rouen Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Rouen. The numbers are calculated over a 30-year period to provide a reliable average. Let's now have a look at the precipitation trends in detail, including monthly rainfall averages and factors influencing local precipitation patterns.

On average, Rouen receives a reasonable amount of rain/snowfall, with an annual precipitation of 820 mm.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The wettest period in Rouen occurs in December, which receives around 84 mm of precipitation. During the driest month, September, Rouen experiences moderate rainfall, totaling approximately 57 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.

Annual Precipitation in France

The map below shows the annual precipitation across France. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Rouen’s average annual precipitation is 820 mm. Let’s compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm of rainfall annually, with wet winters and dry summers typical of southern Spain.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Rouen’s weather, including sunshine hours, humidity levels, and temperature data, visit our Rouen Climate page.