St Marys Weather Forecast
- 3
- 15
Partly cloudy
- 4
- 15
Sunny
- 3
- 16
Mostly sunny
- 4
- 16
Partly cloudy
- 4
- 17
Mostly sunny
- 5
- 14
Partly cloudy
- 7
- 15
Possible shower
Today 15 Jul East Coast
Partly cloudy. Winds west to northwesterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures between 11 and 15.
St Marys Temperature Statistics View More
July Temperature
St Helens Aerodrome (28km)
Lowest 11 July, 2026
3.4 °CAverage July
9.6 °CHighest 1 July, 2026
16.7 °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