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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Voice Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Williamstown’s weather today is shaped by its position on Port Phillip Bay, with conditions often cooler and breezier than inland Melbourne. Check the live forecast above for the current temperature and wind details before heading out.
What makes Williamstown’s weather different from Melbourne’s?
Being on the bay, Williamstown gets more sea breeze in summer and can stay milder in winter. This means afternoon temperatures here are often a degree or two lower than central Melbourne when a south-westerly wind picks up. The bay also moderates overnight lows, keeping frost rare.
How do the tides affect Williamstown?
Tides at Williamstown influence beach conditions and boating. Low tide exposes wide sandy flats, while high tide brings water right up to the seawall. Check Australia’s weather hub for tide times if you plan to fish, sail or walk the foreshore.
Frequently asked questions
What is the best time of day to visit Williamstown beach?
Early morning or late afternoon, when the sea breeze is lightest. Midday can be gusty in summer, and the wind often picks up sharply after 1pm. Check the Melbourne weather page for detailed wind forecasts.
Does Williamstown get fog?
Yes, especially in autumn and winter. Cold bay water meets moist air, forming fog that can linger until mid-morning. It usually clears as the land warms, but can affect ferry services across the bay.
How accurate is the williamstown weather bom forecast?
The Bureau of Meteorology provides the official forecast for Williamstown, updated at least twice daily. For short-range plans, the 7-day outlook is reliable. For tide-dependent activities, cross-check with the severe weather warning page if storms are forecast.