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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Wire Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
As the live forecast above shows, Kellyville Ridge is currently experiencing mild conditions typical of late autumn. For the most accurate short-term outlook, check the 10‑day forecast for Sydney’s north‑west, as the ridge often runs a few degrees cooler than the city centre.
What is the climate like in Kellyville Ridge?
Kellyville Ridge sits in Sydney’s north-west growth corridor, sharing the city’s humid subtropical climate but with more pronounced seasonal swings. Summers (December–February) average around 28°C, but can spike into the mid‑30s with afternoon storms. Winters (June–August) are cool and dry, with overnight lows near 5°C and daytime highs around 16°C. Spring and autumn offer the most comfortable weather for outdoor plans.
When should I visit Kellyville Ridge?
March to May and September to November are the sweet spots – warm days, low humidity and fewer storms. If you’re planning a family trip, avoid NSW school holidays (April, July, October) when local parks and walking tracks get busy. Winter is fine for a quiet escape, but pack layers: mornings can be frosty in the open farmland to the north.
What to pack for a trip?
Summer: light clothing, a rain jacket and sunscreen. Winter: a warm coat, scarf and closed shoes – the ridge’s elevation can catch a chilly breeze. For any season, a reusable water bottle is a good bet on the longer bushwalking trails.
Does Kellyville Ridge get much rain compared to Sydney?
The annual total is similar to central Sydney (around 900 mm), but the north‑west often sees slightly fewer coastal showers. Most rain arrives in summer thunderstorms, which can be intense but short.
What is the weather like in Kellyville Ridge tomorrow?
Refer to the live forecast above for the most precise conditions. In general, mornings can be foggy in the valley pockets, clearing to a mild, partly cloudy afternoon. Check Sydney weather for the broader picture.
Is it colder than central Sydney?
Yes, by about 2–3°C on average, especially overnight. The ridge sits higher than Parramatta or Penrith, so winter frosts are more common. Summer afternoons are similar to western suburbs like weather Sydney reports.