Average temperature in Williamstown
The mean minimum and maximum temperatures over the year in Williamstown (South Australia), Australia.
- On average, the warmest month(s) are January and February.
- On average, the warmest month is January with 29°C.
- On average, the coolest month is July with 15°C.
- The average annual maximum temperature is 22°C.
- The average annual minimum temperature is 10°C.
Weather Forecasts for Williamstown
partly cloudy and no rain
almost clear and no rain
clear and no rain