Castanet Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Castanet, France. This average is based on long-term data collected between 1990 and 2020. Let’s explore the details to provide you with a complete overview.
Castanet experiences significant rain/snowfall throughout the year, averaging 1079 mm of precipitation annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
The wettest period in Castanet occurs in April, which receives around 108 mm of precipitation. During the driest month, July, Castanet experiences moderate rainfall, totaling approximately 72 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.
April, the wettest month, has a maximum daytime temperature of 17°C. During the driest month July you can expect a temperature of 27°C. For more detailed insights into the city’s temperatures, visit our Castanet 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
Castanet’s average annual precipitation is 1079 mm. Let’s compare this to some popular worldwide tourist destinations:
Athens, Greece, receives an average annual precipitation of 400 mm, making it one of the drier Mediterranean climates with rainfall mostly in winter.
In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.
In Brisbane, Australia, the annual precipitation is 979 mm, making it wetter than Sydney.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.
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 Castanet:
- 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 Castanet’s weather, including sunshine hours, humidity levels, and temperature data, visit our Castanet Climate page.