Petersham Weather Forecast
- 18
- 27
Partly cloudy
- 17
- 29
Sunny
- 19
- 27
Partly cloudy
- 19
- 29
Partly cloudy
- 19
- 30
Sunny
- 19
- 30
Shower or two developing
- 16
- 22
Shower or two
Today 27 Jan Sydney
Partly cloudy. Light winds becoming east to northeasterly 15 to 20 km/h in the early afternoon then becoming light in the late evening.
Petersham Temperature Statistics View More
January Temperature
Canterbury (4km)
Lowest 21 January, 2026
13.9 °CAverage January
22 °CHighest 10 January, 2026
41.2 °C
Climate (2021–Present)
Canterbury (4km)
Average Low 2021–2026
12.5 °CAverage 2021–2026
17.5 °CAverage High 2021–2026
23.1 °C