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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
According to the live forecast above, Onkaparinga Hills today sees a daytime maximum in the low-to-mid range with partly cloudy skies and light winds. This late-summer pattern brings warm afternoons followed by cooler evenings, typical of the Adelaide Hills.
What is the typical weather pattern right now?
Late summer in Onkaparinga Hills usually means daytime highs between 26°C and 31°C, with overnight lows dropping to 12°C–16°C. The live forecast above shows the exact conditions. Northerly winds ahead of a trough can push temperatures higher before a south-westerly change arrives, often bringing a drop of 5–8°C and a slight chance of an evening shower.
How does the local geography affect the weather?
Situated at around 200–300 metres elevation in the Mount Lofty Ranges, Onkaparinga Hills experiences cooler nights than the Adelaide plains. Inversions can trap morning fog in valleys, lifting by mid-morning. The area’s south-facing slopes also receive less direct sun, keeping soil moisture slightly higher than north-facing sites.
Does Onkaparinga Hills get frost in winter?
Yes, frost is common on clear winter nights, especially in valleys and low-lying sections. Temperatures can drop to 1°C–3°C. Frost usually clears by mid-morning once the sun warms the slopes.
When is the best time to visit Onkaparinga Hills for outdoor activities?
Spring (Sep–Nov) and autumn (Mar–May) offer mild days around 18°C–24°C, lower humidity, and less rain than winter. These shoulder seasons have fewer fire-danger days and more stable conditions for hiking or cycling.
How does the wind affect Onkaparinga Hills?
Afternoon sea breezes from the Gulf St Vincent can reach 20–30 km/h, cooling the hills in summer. Northerly winds ahead of cold fronts often bring the hottest days, while strong westerly winds in winter can produce wind chill and rain squalls.
See the Adelaide weather for the broader region, or visit the Australia weather hub for other locations.