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

This page shows the average amount of rainfall per month in Chatou. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

On average, Chatou receives a reasonable amount of rain/snowfall, with an annual precipitation of 745 mm.

Monthly Precipitation Levels

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

Year-round, Chatou has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 75 mm, and the driest month, September, with 52 mm, is minimal.

December, the city’s wettest month, has a maximum daytime temperature of 9°C and receives 58 hours of sunshine. During the driest month September you can expect a temperature of 22°C. For more detailed insights into the city’s temperatures, visit our Chatou 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

Chatou’s average annual precipitation is 745 mm. Let’s compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm, with rain and snow contributing to its humid climate.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

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.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

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