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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 ·
Castle Hill’s weather this moment is shown in the live forecast above. Located in Sydney’s north-west, the suburb enjoys a temperate climate with warm summers, mild winters, and reliable rainfall spread across the year.
What does the seasonal pattern look like for Castle Hill?
Summer (December–February) brings average highs around 28–31°C, with humidity rising before afternoon storms. Winter (June–August) sees daytime temperatures typically between 16–19°C, while overnight lows can drop to 5–8°C. Autumn and spring offer the most pleasant conditions for outdoor plans, with moderate temperatures and lower rainfall than summer. For a detailed look ahead, you can check the weather castle hill 14 days outlook or the castle hill weather forecast 7 days from the live data above. Longer-term trends are available via the castle hill weather forecast 28 days view.
How can I get real-time updates for Castle Hill?
The bom weather castle hill page from the Bureau of Meteorology is the most authoritative source for official warnings and radar imagery. For more granular detail, the castle hill weather hourly breakdown shows temperature, humidity and wind changes hour by hour, while the castle hill weather radar loop helps you track approaching rain. If you need a broader look, the weather in castle hill 10 days forecast combines daily summaries with a quick glance at trends.
When is the best time to visit Castle Hill?
Autumn (March–May) and spring (September–November) offer the most comfortable temperatures for walks and outdoor events. Days are warm but not hot, and rainfall is generally lower than in summer.
Does Castle Hill ever get snow?
No, snow is virtually unknown in Castle Hill. The area’s low elevation and mild winter temperatures mean any precipitation falls as rain, even on the coldest days.
How reliable is the weather forecast for Castle Hill?
Short-term forecasts (1–3 days) from the Bureau of Meteorology are highly accurate. Longer outlooks, like the 14-day or 28-day, show broad trends but may shift with changing weather patterns.
Sources
For a wider view of conditions across the state, visit our Australia weather hub or the dedicated Sydney Weather page.