St Marys Weather Forecast
- 5
- 13
Showers
- 9
- 17
Showers
- 9
- 16
Shower or two
- 4
- 15
Partly cloudy
- 7
- 15
Partly cloudy
- 4
- 16
Partly cloudy
- 5
- 15
Cloudy
Today 18 Aug East Coast
Partly cloudy. High chance of showers in the north, medium chance elsewhere. Winds northeasterly 15 to 25 km/h. Daytime maximum temperatures between 12 and 16.
St Marys Temperature Statistics View More
August Temperature
St Helens Aerodrome (28km)
Lowest 1 August, 2026
3 °CAverage August
9.9 °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