Melbourne Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Melbourne, Victoria, Australia. Long-term data from 1990 to 2020 was used to calculate these averages. Let's explore the details to provide you with a complete overview.

On average, Melbourne receives a reasonable amount of rainfall, with an annual precipitation of 690 mm (27 in).

Monthly Precipitation Levels

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

While rainfall varies throughout the year, each season offers its own charm. September brings wetter days averaging 69 mm (2.7 in) of precipitation, spread over 10 rainy days.

In contrast, March experiences a drier climate, with about 40 mm (1.6 in) of rainfall spread across 10 rainy days.

September, the wettest month, has a maximum daytime temperature of 17°C (63°F). The city receives 185 hours of sunshine in this period. During the driest month March you can expect a temperature of 24°C (75°F). For more detailed insights into the city's temperatures, visit our Melbourne Temperature page.

Melbourne's average annual precipitation is 690 mm (27 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.

Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA, over 31.5 meters (103 feet) fell during the winter of 1972.

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