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

This page shows the average amount of rainfall per month in Chengdu. 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.

Chengdu is known for its substantial rainfall, with annual precipitation reaching 1175 mm.

Monthly Precipitation Levels

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

Significant seasonal changes in precipitation occur throughout the year. During the wet season, July receives substantial rainfall, averaging 305 mm of precipitation, recorded across 17 rainy days.

In contrast, the drier season, December brings less rainfall, with 14 mm over 8 rainy days.

July, the city’s wettest month, has a maximum daytime temperature of 32°C. During the driest month December you can expect a temperature of 12°C. For more detailed insights into the city’s temperatures, visit our Chengdu Temperature page.

Annual Precipitation in China

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

Amsterdam Precipitation Compared World Wide

Chengdu’s average annual precipitation is 1175 mm. Let’s compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.

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.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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 Chengdu’s weather, including sunshine hours, humidity levels, and temperature data, visit our Chengdu Climate page.