About Mittagong, New South Wales's Climate & Weather History

Mittagong, in New South Wales, Australia, is home to roughly 5,700 people in the Australian Eastern time zone at 34.5°S latitude.

In 2025, Mittagong recorded an average annual temperature of 57°F. The hottest temperatures reached 95°F in December; the coolest were 27°F in July. Total precipitation for the year was 37 inches, with the wettest month being July.