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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Monitor Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Flagstaff Hill’s weather is generally mild year-round, with warm summers and cool, wet winters. The live forecast above shows current conditions for this Adelaide Hills suburb, where morning fog and sea breezes from Gulf St Vincent are common.
What is the typical weather pattern for Flagstaff Hill?
Flagstaff Hill sits about 120 metres above sea level, so it is often a few degrees cooler than central Adelaide. Summer days (December to February) average 26–30°C, with occasional heatwaves pushing past 38°C. Winter (June to August) sees daytime highs around 14–16°C, with overnight lows near 6–8°C. Rain is most frequent from May to August, averaging 60–80 mm per month. The suburb’s elevated position means it can catch more cloud and drizzle than the plains, especially in the morning.
How does the weather affect local activities?
The Flagstaff Hill Golf Club is busiest in autumn and spring, when temperatures sit around 18–24°C and the ground is firm. Summer play often starts early to avoid the midday heat. The adjacent Happy Valley Reservoir reserve is popular for walking and cycling, but trails can become muddy after winter rain. For a detailed outlook, check Adelaide weather or the broader Australia weather hub for regional trends.
Does Flagstaff Hill get frost?
Yes, light frost occurs on clear winter mornings, especially in low-lying parts of the suburb. Temperatures can dip to 2–4°C, so gardeners often cover sensitive plants from June to August.
Is the weather in Flagstaff Hill different to Adelaide city?
Generally 2–3°C cooler than the Adelaide CBD, with more morning cloud and slightly higher rainfall due to its elevation. The suburb also catches stronger afternoon sea breezes in summer.
What is the best time to visit Flagstaff Hill?
Late autumn (April–May) and spring (September–November) offer the most comfortable weather for outdoor activities, with mild days around 18–24°C and lower rain chances than mid-winter.