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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Focus 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 before heading out in Underdale today — Adelaide’s inner-west weather can shift quickly with sea breezes off the Gulf St Vincent, so a quick glance at the temperature and wind is your best bet for planning the day.
What’s the typical weather pattern for Underdale?
Underdale sits about 5 kilometres west of the Adelaide city centre, so it shares the city’s Mediterranean climate but often feels the first effects of afternoon sea breezes. Summers are warm and dry, with January averages around 30°C, while winters are cool and damp, with July highs near 15°C. Rainfall is modest overall, with most rain falling between May and August.
How accurate is the live forecast for Underdale?
The data you see above comes from the Bureau of Meteorology and is updated regularly. For the most reliable plan, pair the live forecast with the BOM’s local observations, as coastal suburbs like Underdale can see temperature swings of 5–8°C between the coast and the hills within an hour.
Does Underdale get much rain compared to the Adelaide Hills?
No — Underdale is much drier. The Hills can receive over 800 mm annually, while Underdale averages around 450 mm. The difference is mainly due to the hills forcing moist air to rise and cool, which doesn’t happen over the flat coastal plain.
When is the best time to visit Underdale for good weather?
Late spring (November) and early autumn (March) are ideal. You’ll get warm, sunny days in the mid-20s without the intense heat of January or the wet, chilly winter months. Sea breezes keep things comfortable even on warmer afternoons.
Why does the forecast sometimes feel wrong in Underdale?
Because the BOM’s forecast is for the broader Adelaide area. Underdale’s proximity to the coast means it can be 2–4°C cooler than the official city forecast on summer afternoons when the sea breeze kicks in. Always check the live wind direction for a more accurate read.
For more Australian weather, visit our Australia weather hub or check conditions in Adelaide Weather.