Macau Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Macau, Anhui, China. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Macau has a notably wet climate with abundant precipitation, recording 1815 mm (71 in) of rainfall per year. It does, however, have a distinct dry and rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The seasons in Macau, bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 329 mm (13 in) of precipitation. This rainfall is distributed across 18 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 36 mm (1.4 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.August, the wettest month, has a maximum daytime temperature of 32°C (90°F). The city receives 188 hours of sunshine in this period. During the driest month December you can expect a temperature of 21°C (70°F). For more detailed insights into the city's temperatures, visit our Macau Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Explore Macau's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Macau spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
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.
heavy rainfall
high
moderate
low
almost none
Macau vs World: Rainfall Compared
Macau's average annual precipitation is 1815 mm (71 in). Let's compare this to some popular worldwide tourist destinations:
Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Macau's weather, including sunshine hours, humidity levels, and temperature data, visit our Macau Climate page.
