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

This page shows the average amount of rainfall per month in Grenoble. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Grenoble has a relatively rain/snowy climate with high precipitation levels, averaging 1505 mm of rain/snowfall annually.

Monthly Precipitation Levels

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

Despite minor fluctuations, Grenoble enjoys fairly consistent precipitation throughout the year. In May, you can expect around 149 mm of precipitation, while in August, Grenoble receives about 109 mm.

May, the city’s wettest month, has a maximum daytime temperature of 18°C and receives 221 hours of sunshine. During the driest month August you can expect a temperature of 24°C. For more detailed insights into the city’s temperatures, visit our Grenoble Temperature page.

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

Grenoble’s average annual precipitation is 1505 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.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

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.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Grenoble:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

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