Heat Risk in Cleve, SA: 2026 Assessment
Heat Risk Score
6.0/10Cleve experiences high temperatures during summer, posing a risk to vulnerable populations. Heatwaves are becoming more frequent and intense.
Key Facts
- Heat Risk
- Cleve experiences high temperatures during summer, posing a risk to vulnerable populations. Heatwaves are becoming more frequent and intense.
- Trend
- increasing
- Suburb
- Cleve, SA
- Overall Risk
- Medium
- Postcode
- 5640
- Region
- Regional SA
- Median property value
- $375,000
- Dominant hazard
- extreme heat (6/10)
- Highest high-risk exposure
- 9.9% of land (bushfire)
Heat Risk Analysis
Cleve in South Australia faces elevated extreme heat risk. The Bureau of Meteorology (BOM) reports that Australia's average temperature has increased by approximately 1.5 °C since 1910, with the frequency of extreme heat days rising across most regions.
The urban heat island (UHI) effect can make built-up areas of Cleve warmer than surrounding rural areas, particularly on summer nights. Dark roof materials, limited tree canopy cover, and heat-absorbing surfaces contribute to localised heat stress that varies by property.
High temperatures are common during summer months.
Get an address-level heat risk assessment from ClimateNest for Cleve including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Climate projections show heat risk in Cleve is tied to the broader Regional SA climate. The suburb scores 6 on the 0–10 heat index, with the number of days above 35°C expected to grow through 2050 — a factor that affects cooling costs, garden viability and property desirability.
Cleve located in Regional SA (postcode 5640), is a South Australia suburb tracked by ClimateNest. The suburb's median property value is $375,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Cleve.
Across the six hazard axes ClimateNest models, the dominant climate risk in Cleve is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.
Whether you are buying, selling or renovating in Cleve, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Cleve are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
A prolonged heatwave in South Australia caused heat stress and health concerns in Cleve.
Adaptation & Mitigation Actions
Develop a community bushfire plan
ImmediateCreate a plan to prepare for and respond to bushfires, including evacuation routes and community shelters.
Est. cost: Low
Improve building standards for heat resilience
Near-termImplement building codes that promote energy efficiency and reduce heat absorption, such as insulation and reflective roofing.
Est. cost: Medium
Upgrade drainage infrastructure
Near-termImprove drainage systems to reduce the risk of localised flooding during heavy rainfall events.
Est. cost: Medium
Implement a heatwave early warning system
ImmediateDevelop a system to alert residents of impending heatwaves and provide guidance on how to stay safe.
Est. cost: Low
Promote water conservation
Long-termEncourage residents to conserve water through education and incentives to ensure water security during droughts.
Est. cost: Low
Council & Emergency Services
Explore Cleve Risk Reports
Frequently Asked Questions
How hot does Cleve get in summer?
Cleve in South Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Cleve. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Cleve?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for South Australia. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Cleve properties?
Higher temperatures increase cooling demand, which raises electricity costs. ClimateNest provides energy cost projections based on your property's specific exposure to extreme heat days in Cleve and the performance of your building envelope.
What heat mitigation measures work best in Cleve?
Effective heat mitigation includes light-coloured roofing (cool roofs), ceiling and wall insulation, double-glazed windows, external shading, cross-ventilation design, and increasing tree canopy around the property. These measures reduce indoor temperatures and cooling costs.
What are the main climate risks in Cleve?
ClimateNest's suburb model rates Cleve's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by bushfire (5/10) and damaging wind (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Cleve.
What share of Cleve is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 9.9% of Cleve in high-risk zones for bushfire, with a further 63.9% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Cleve Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Cleve, South Australia, covering flood, bushfire, sea level rise and more.
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Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections