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Williamstown climate
Typical historical weather for Williamstown, Australia, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Williamstown.
Annual average
14.4°C
across all months
Warmest month
27.8°C
Jan average high
Coolest month
5.3°C
Jul average low
Annual rainfall
452mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
43.2°C
24 January 2019
Coldest day
-1.9°C
5 August 2020
Wettest day
38.3mm
28 December 2016
Windiest day
10.2m/s
29 September 2016
See the detail: Williamstown on 28 December 2016.