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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Down Under Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Constitution Hill, a suburb in Sydney’s west near Parramatta, is seeing the conditions shown in the live forecast above – typical of late autumn in this inland pocket of Greater Sydney, where daytime warmth lingers but overnight cooling is more pronounced than on the coast.
What is the typical weather pattern for Constitution Hill?
Constitution Hill sits on a low ridge about 30 kilometres west of the Sydney CBD, placing it inland enough to miss much of the coastal sea-breeze moderation. Summers are hot and often humid, with January maximums averaging near 29°C. Winters are cool and comparatively dry, with July minimums dropping to around 6°C. The area receives most of its rain in late summer and early autumn, often from east-coast lows or thunderstorms rolling off the Blue Mountains.
Does the hill itself affect local weather?
The gentle rise of Constitution Hill (elevation roughly 60 metres) is too modest to trigger significant orographic lift, but it does mean the suburb drains slightly cooler air at night than lower-lying parts of Parramatta. Frost is uncommon, though in calm winter mornings the ridge can be a degree or two milder than the valley floors.
How does Constitution Hill’s weather compare with coastal Sydney?
It is typically 2–3°C hotter in summer and 2–4°C cooler in winter than the Sydney CBD. The lack of coastal sea breeze allows heat to build on hot days, while clear winter nights radiate heat quickly from the elevated terrain.
When is the best time to visit Constitution Hill for pleasant weather?
Late March to early May offers warm days (mid-20s) with lower humidity and a low chance of storms. Spring (September–November) is also agreeable, though October can bring gusty westerly winds ahead of cold fronts.
Does Constitution Hill ever get severe storms?
Yes – the suburb lies in the path of thunderstorm tracks that develop over the Blue Mountains and move east. Severe storms with large hail and damaging winds occur a few times each year, particularly in November and February.
For broader conditions across the state, check our Sydney Weather page, and for national outlooks visit the Australia weather hub. If severe storms are forecast, see the Severe Weather Warning page.