Jiangmen Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Jiangmen, Guangdong, China. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's explore all the details to give you a full picture.

Jiangmen has a relatively rainy climate with high precipitation levels, averaging 1835 mm (72 in) of rainfall annually. Despite the high annual total, it does experience a distinct dry and rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Jiangmen can be quite wet during June, receiving approximately 319 mm (13 in) of precipitation over 20 rainy days.

In contrast December, experiences much drier conditions, with 36 mm (1.4 in) of rainfall, spread across 6 rainy days.

June, the wettest month, has a maximum daytime temperature of 33°C (91°F). The city receives 140 hours of sunshine in this period. During the driest month December you can expect a temperature of 22°C (72°F). For more detailed insights into the city's temperatures, visit our Jiangmen Temperature page.

Annual Rainfall in China: City Comparison

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.

Jiangmen vs World: Rainfall Compared

Jiangmen's average annual precipitation is 1835 mm (72 in). Let's compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.

In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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