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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie 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 ·
Check the live forecast above for today’s conditions in Onkaparinga Hills before heading out, as the suburb’s elevated position in the Mount Lofty Ranges means its weather often differs from coastal Adelaide.
What makes Onkaparinga Hills weather unique?
Onkaparinga Hills sits roughly 200 to 300 metres above sea level, which typically makes it a few degrees cooler than the Adelaide plains. The suburb catches more rainfall and cloud cover, especially during winter when moist south-westerly winds rise over the hills. Summer afternoons can still reach the low thirties, but overnight temperatures drop noticeably.
How do the seasons affect daily life?
Autumn and spring offer the most settled conditions, with mild days and clear skies. Winter brings persistent drizzle and occasional thunderstorms rolling in from the Gulf St Vincent. Frost is possible on winter mornings, particularly in valleys. Summer heatwaves are less intense here than in the city centre, but bushfire risk remains real during dry spells.
Is Onkaparinga Hills windier than Adelaide?
Yes, generally. The elevated terrain funnels north-westerly winds during summer and south-westerlies in winter. Gusts above 50 km/h are twice as common as at the Adelaide Airport station.
When is the best time to visit?
Late October to early April offers the warmest, driest weather. January and February are hottest, but sea breezes from the nearby coast often moderate afternoon heat.
Does Onkaparinga Hills get snow?
Very rarely. Light snow flurries occurred in July 2021 and August 2022, but they melted within hours. The suburb sits below the typical snow line for South Australia.
Sources
For broader conditions across South Australia, visit the Adelaide Weather page or check Severe Weather Warnings before travelling.