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Compared to the rest of Australia, Williamstown experiences exceptionally high wind speed along with far below average overnight temperatures. Humidity levels are above average and daytime temperatures are below average. Rainfall, numbers of cloudy days and numbers of clear days are average.
Summer in Williamstown is between December and February and maximum daily temperatues average between 24.9 and 27.5°C with overnight minimums averaging between 9.5 and 11.2°C. Summer days are balmy, averaging around 27.5 °C in the hottest months. Sunscreen and hat recommended.
Winter is between June and August and maximum daily temperatues average between 12.2 and 13.1°C with overnight minimums averaging between 3.1 and 3.6°C. Winter days in Williamstown are moderately cold but can be chilly if windy, dropping to around 12.2 °C. Pack your coat and warm headwear.
Weather graphs: Temperature | Rainfall | Rainy days | Clear and cloudy days | Windspeed | Humidity |
Williamstown Mean Morning and Afternoon Windspeed
|Wind speed (km/h) || Morning|
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