Perth Rainfall

Generally, Perth, Western Australia enjoys a temperate climate, which means that the city has hot and dry weather during summer months, and winters wet with rainfalls. Throughout most of the year, however, Perth benefits from generous amount of sunshine. Perth rainfall incidences are remarkably rare, with the exception of winter.

Perth rainfall: average amount of rainfall

Perth rainfall comes every winter, during the months of May to August. June and July are the city's wettest months, with an average Perth rainfall of about 150 to 175 millimeters or 6 to 7 inches. During May and August, Perth rainfall takes an average of about 100 millimeters or 4 inches. The average Perth rainfall for a year is about 790 millimeters.

Perth rainfall comes more often during night time than in day time.

Perth rainfall: using rain in Perth

Because rain is relatively rare in Perth, rain is valued as an important means of replenishing the country's water resources and water supply. Some households in Perth have water tanks at the ready to be able to make the most out of Perth's rainfall. These water tanks collect Perth rainfall that will be used during hot summer months in the city.

Perth rainfall: winter months

Since weather in Perth is generally hot and sunny, rain is relatively scarce in Perth, again, with the exception of winter months. Winter in Perth starts in mid-May and ends in late August. The months of June and July record the most amount of Perth rainfall. The total amount of Perth rainfall in those four winter months constitute about 70 percent of the overall amount of Perth rainfall for the whole year.

Perth rainfall: cyclones

Cyclones rarely visit Perth despite the fact that the towns and cities located at the northern part of Western Australia (where Perth is situated) are part of the Cyclone Belt. Perth rainfall occurs due to the backlash of the cyclones that visit the northern parts of Western Australia.

Perth rainfall: humidity and temperature

During the rainy months of winter, the average temperature in Perth is about 18 degrees Celsius during daytime and about 10 degrees Celsius at night, while hot summer months have a record an average of 32 degrees Celsius daytime temperature and about 19 degrees Celsius night time average temperature. During autumn and spring days, the average temperature is about 23 degrees Celsius, but it becomes about 14 degrees Celsius at night.