Wanniassa is a city of approximately 7,300 people in Australian Capital Territory, Australia. Located in the Australian Eastern time zone at 35.4°S latitude.
In 2025, Wanniassa recorded an average annual temperature of 55°F. The hottest temperatures reached 96°F in December; the coolest were 26°F in June. Total precipitation for the year was 23 inches, with the wettest month being July.
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