About Mernda, Victoria's Climate & Weather History

Mernda is a city of approximately 23,400 people in Victoria, Australia. Located in the Australian Eastern time zone at 37.6°S latitude.

In 2025, Mernda recorded an average annual temperature of 57°F. The hottest temperatures reached 100°F in January; the coolest were 33°F in August. Total precipitation for the year was 31 inches, with the wettest month being November.