Sydney Weather in June
In June, Sydney averages a high of 18°C (64°F) and a low of 10°C (50°F), from 55 years of daily records (1971–2026).
18°C
Average high
64°F
10°C
Average low
50°F
25°C
Record high
77°F · June 26, 1991
4°C
Record low
40°F · June 30, 2010
What June Is Like in Sydney
- The June heat record, 25°C (77°F) on June 26, 1991, has stood for 35 years.
- June in Sydney has become 0.7°C (1.3°F) warmer on average: the 2012–2026 average against 1970–1989.
- The warmest June in the record was 1991; the coldest was 1982.
At least 1 mm of rain falls on 30% of June days, and the month averages 137 mm in total.
Warmest: 2001 (19.9°C)Latest: 2025 (17.2°C)10-year averageLong-run average (17.9°C)
Look Up a Day in June
See the weather in Sydney on any June date, year by year.
Source: NOAA GHCN-Daily, Sydney (Observatory Hill) (1971–2020); Sydney Harbour (Wedding Cake W (2020–2026). Averages cover 1971–2026. How we compute this