SA Environmental Conditions by Region
Real, long-term Bureau of Meteorology data for every named region of South Australia — rainfall, winter frost minimums, and the distinguishing facts that matter for a homestead — plus where to check bushfire and flood mapping for your specific address. Companion reference to the full SA Environmental Conditions article.
Before you act on any of this: these are long-term averages, not a forecast or guarantee for any given year, and a mild average can still mean real frost on individual cold nights. Always confirm bushfire-prone and flood status for your specific address with your council or the official mapping tools linked below.
Bushfire and flood mapping for your specific address: South Australia's bushfire risk mapping is accessible through the state's Property Location Browser and the
PlanSA hazard mapping project, with practical guidance from the
Country Fire Service. For flood behaviour and current warnings, the
Bureau of Meteorology's flood warning service is the authoritative national source; local flood overlays sit with your council.
Adelaide
Kent Town averages 540.6mm a year, winter-dominant (June wettest at 78.1mm), with the mildest winter minimum of SA's settled regions at 7.6°C.
Source: Bureau of Meteorology long-term climate averages — Adelaide (Kent Town).
Barossa & Clare Valley
Kapunda averages 490.8mm a year, winter-peaked, with a winter minimum of 5.3°C — fertile, well-known wine country that's still genuinely frost-prone.
Source: Bureau of Meteorology long-term climate averages — Kapunda.
Riverland
Renmark averages just 260.5mm a year with a winter minimum of 5.1–6.0°C — low enough rainfall that this is irrigation-dependent country, not rainfed.
Source: Bureau of Meteorology long-term climate averages — Renmark.
Mount Gambier & South East
Mount Gambier averages 712.7mm a year, the wettest and most naturally fertile region in the state (volcanic and limestone soils), with a winter minimum of 5.2°C.
Source: Bureau of Meteorology long-term climate averages — Mount Gambier.
Eyre Peninsula
Port Lincoln averages 490.9mm a year with a milder, maritime-buffered winter minimum of 8.1°C — noticeably gentler than the Barossa or South East at the same time of year.
Source: Bureau of Meteorology long-term climate averages — Port Lincoln.
Outback
Woomera averages just 183.5mm a year, the driest region in the state, yet winter nights still average 5.8–6.8°C — genuinely frosty despite the desert heat of summer, because clear desert nights radiate heat away fast.
Source: Bureau of Meteorology long-term climate averages — Woomera.
Is this the same data as the SA Environmental Conditions blog article?
It's the same underlying long-term Bureau of Meteorology data, organised region-by-region for quick reference here rather than by topic (frost, rainfall, soil, hazards) as in the full article. Read the full article at https://hollyshomestead.com.au/blog/environmental-conditions-sa.html for the complete picture across every category.
Does this tool tell me if my specific property is bushfire-prone or flood-affected?
No. Bushfire-prone area declarations and flood overlays are formal designations set at the individual address level by your council or state planning authority, not something a regional average can substitute for. See the official mapping links above for a binding answer for your address.
How accurate is the rainfall and frost data here?
It's drawn directly from long-term Bureau of Meteorology station averages, typically compiled over several decades of real observations — not an estimate or a model. Each region above is represented by one real, named weather station.
Which region should I use if I'm between two of the ones listed?
Use whichever named region's representative station is geographically and climatically closest to you, and lean on your own local experience — frost patterns especially can vary with elevation and local topography over quite short distances.
