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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Data Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out — Williamtown’s coastal location means conditions can shift quickly, especially when a seabreeze develops or a trough moves through the Hunter.
What kind of weather does Williamtown usually get?
Williamtown sits near the coast in the Hunter region, so you get mild, humid summers and cool, damp winters. The weather is heavily influenced by the nearby Pacific Ocean: summer afternoons often bring a seabreeze that can freshen south-easterly winds, while winter sees the passage of cold fronts that deliver rain and gusty south-westerlies. Fog is common in the valleys on winter mornings, and afternoon thunderstorms can pop up in spring and summer.
How does the wind and seabreeze affect daily plans here?
The RAAF Base’s anemometer records some of the steadiest afternoon winds in NSW. A strong north-easterly can make the beach feel cooler even on a 30°C day, while an early southerly change can drop the temperature by 5–8°C in an hour. If you’re flying or boating, check the williamtown wind readings in the live forecast above — it often determines whether the day stays settled.
Is the Williamtown weather observation station reliable for beach planning?
Yes. The Bureau of Meteorology’s Williamtown observation site (bom williamtown) is the official station and gives accurate readings of temperature, wind and pressure that apply well to nearby beaches like Birubi and Stockton.
Where can I see williamtown weather hourly?
The live forecast above includes hourly breakdowns for temperature, rain chance and wind. You can also check williamtown airport weather updates on the Bureau of Meteorology page or via third-party sites like Weatherzone.
How does Williamtown compare to sydney weather?
Williamtown is typically a couple of degrees cooler than central Sydney in summer thanks to the stronger seabreeze, but winter mornings are often chillier. Rainfall is slightly higher, and the wind tends to be more consistent from the north-east.
Sources
- Bureau of Meteorology – NSW Weather Observations
- Weatherzone – Williamtown Forecast
- Elders Weather – Williamtown
For broader conditions, see our Australia weather hub or check Sydney Weather and severe weather warnings.