St Marys Weather Forecast
- 3
- 20
Clear
- 5
- 21
Sunny
- 5
- 18
Mostly sunny
- 3
- 16
Showers increasing
- 5
- 15
Partly cloudy
- 9
- 16
Shower or two
- 4
- 15
Showers
Today 29 Aug East Coast
Clear. Winds westerly 20 to 30 km/h.
St Marys Temperature Statistics View More
August Temperature
St Helens Aerodrome (28km)
Lowest 23 August, 2026
2.5 °CAverage August
10.8 °CHighest 13 August, 2026
19.2 °C
Climate (2021–2026)
St Helens Aerodrome (28km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C