Sharing a similar climate to Perth, Mandurah has a typical Mediterranean climate (K�ppen classification Csa) with warm summers and cool winters. During summer (December to February), the average maximum temperature is 27 �C (80 �F) with an average minimum temperature of 19 �C (66 �F). At its extreme it can get very hot, often having a couple of days exceed 40 �C (104 �F) in the later half of summer. In winter (June to August), the average maximum temperature is 15 �C (59 �F) with an average minimum temperature of 9 �C (48 �F). Mandurah's proximity to the ocean moderates diurnal temperatures somewhat, with temperatures a few kilometres inland often 4 or 5 degrees warmer during summer days (or cooler during winter nights). Frosts are very rare as a result, but do occur annually around suburbs such as Greenfields. The current weather station opened in 2001 and is situated right on the coastline, causing data recorded to appear warmer during winter nights and cooler in summer days compared to surrounding areas.
Mandurah also receives a moderate though highly seasonal rainfall of about 850mm a year, however recent trends have seen this once reliable rainfall drop significantly. In addition, most of the winter rains are usually accompanied by severe winds and storms capable of causing widespread damage, making Mandurah one of the windiest cities in Australia. These conditions are perfect for tornado formation, which Mandurah's climate is remarkable for producing one of the highest densities of tornadoes in the world.
Summer storms are rare due to the Mediterranean climate in the city, but not unheard of. Mandurah was affected to a lesser degree than Perth in the 2010 Western Australian storms, but the 2011-12 summer was notable for Mandurah bearing the brunt of three severe thunderstorms. One such storm on 12 December 2011 gave Mandurah almost seven times its monthly average, while another storm on 20 January 2012 dumped 57 mm on the city causing power
