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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Oz Reviewly 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 planning your day in Bidwill. This western Sydney suburb sits on the Cumberland Plain, so summer days are often hot and dry, while winters are cool with patchy fog and light westerly winds.
What drives Bidwill’s weather?
Bidwill lies in a rain shadow east of the Blue Mountains, making it one of Sydney’s drier suburbs. The dominant weather pattern comes from the westerlies in winter and sea breezes in summer. Heat builds quickly over the plain, so temperatures here regularly exceed those near the coast. For the wider region, see our Sydney weather page.
When is the hottest and coolest time of year?
January is the hottest month, with average maximums around 29–30°C, though summer heatwaves can push the mercury above 40°C. July is the coolest, with overnight lows often dipping to 3–5°C and morning fog common. Nearby Penrith weather follows a very similar pattern, as does Blacktown weather.
Does Bidwill get storms like other parts of western Sydney?
Yes. Thunderstorms are common from late spring to early autumn, often forming along the foothills and moving east. Hail and damaging winds are possible, so check the severe weather warning page during storm season.
How reliable is the bidwill weather radar for local conditions?
The nearest radar is at Terrey Hills, covering the Sydney basin. It shows approaching rain and storms, but the western plains can be at the edge of its range. For real-time updates, combine the radar with the live forecast above.
Is Bidwill’s weather very different from central Sydney?
Yes. Being inland, Bidwill is hotter in summer and cooler in winter. Night-time temperatures in winter can be 5–8°C lower than the city centre. Summer sea breezes rarely reach this far west, so afternoon heat is more intense here.