With a population of around 14,400, Williamstown sits in Victoria, Australia. The city operates in the Australian Eastern time zone.
Recent weather here gives a sense of typical conditions: in 2025, Williamstown recorded a mean annual temperature of 59°F, ranging from 40°F lows in August to 93°F highs in January, with about 27 inches of precipitation across the year.
View historical weather for Williamstown · More cities in Victoria