Heat Risk in Mount Pleasant, SA: 2026 Assessment

Mount Pleasant, South Australia· UNKNOWN
Mount Pleasant is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations and infrastructure.Updated 1 Apr 2026

Heat Risk Score

5.0/10

Mount Pleasant is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations and infrastructure.

Key Facts

Heat Risk
Mount Pleasant is likely to experience more frequent and intense heatwaves. This poses a risk to vulnerable populations and infrastructure.
Trend
increasing
Suburb
Mount Pleasant, SA
Overall Risk
Medium
Postcode
5235
Highest high-risk exposure
9% of land (bushfire)

Heat Risk Analysis

Mount Pleasant 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 Mount Pleasant 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.

The average maximum temperature in January is increasing, leading to more frequent and intense heat stress events.

Get an address-level heat risk assessment from ClimateNest for Mount Pleasant including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.

Mount Pleasant (postcode 5235) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (9% of land in high-risk zones), surface flood (6.7% of land in high-risk zones), extreme wind (4.1% of land in high-risk zones). Exposure is not uniform across Mount Pleasant — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Local Hazard Evidence

Avg January Max Temp30.5 °C
Heat Stress Events/Year5
Urban Heat ContextThe average maximum temperature in January is increasing, leading to more frequent and intense heat stress events.

Historical Events

2009
Major

A prolonged heatwave resulted in heat stress and health concerns for residents of Mount Pleasant.

Adaptation & Mitigation Actions

Improve Bushfire Preparedness

Immediate

Implement property protection measures, such as clearing vegetation and installing fire-resistant materials. Develop and practice evacuation plans.

Est. cost: Low to Medium

Enhance Heatwave Resilience

Near-term

Establish cooling centers, promote water conservation, and educate residents on heat safety measures.

Est. cost: Low

Upgrade Flood Defenses

Near-term

Improve stormwater drainage systems, construct flood barriers, and implement floodplain management strategies.

Est. cost: Medium to High

Community Awareness Programs

Long-term

Conduct workshops and distribute information on climate risks and adaptation strategies to increase community resilience.

Est. cost: Low

Council & Emergency Services

Adelaide Hills Council
Emergency Services

Data last updated: 1 April 2026

Explore Mount Pleasant Risk Reports

Frequently Asked Questions

How hot does Mount Pleasant get in summer?

Mount Pleasant in South Australia experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Mount Pleasant. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.

Is extreme heat increasing in Mount Pleasant?

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 Mount Pleasant 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 Mount Pleasant and the performance of your building envelope.

What heat mitigation measures work best in Mount Pleasant?

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 share of Mount Pleasant is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 9% of Mount Pleasant in high-risk zones for bushfire, with a further 61.3% 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 Mount Pleasant Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Mount Pleasant, South Australia, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections