St Marys South Weather Forecast
- 11
- 32
Windy. Partly cloudy
- 13
- 25
Sunny
- 10
- 25
Possible late shower
- 10
- 21
Partly cloudy
- 7
- 21
Partly cloudy
- 8
- 21
Sunny
- 7
- 25
Sunny
Today 5 Sep Sydney
Partly cloudy. Slight chance of a shower, most likely in the late afternoon and evening. Winds northerly 25 to 40 km/h tending northwesterly 35 to 50 km/h in the middle of the day then tending westerly 15 to 25 km/h in the late evening.
St Marys South Temperature Statistics View More
September Temperature
Horsley Park (11km)
Lowest 1 September, 2026
7.2 °CAverage September
17.9 °CHighest 2 September, 2026
27.7 °C
Climate (2021–2026)
Horsley Park (11km)
Average Low 2021–2026
12.5 °CAverage 2021–2026
17.4 °CAverage High 2021–2026
23.8 °C