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

Merewether, in New South Wales, Australia, is home to roughly 10,600 people in the Australian Eastern time zone at 32.9°S latitude.

In 2025, Merewether recorded an average annual temperature of 66°F. The hottest temperatures reached 106°F in December; the coolest were 41°F in July. Total precipitation for the year was 61 inches, with the wettest month being January.