Heat Risk in Forrestfield, WA: 2026 Assessment

Forrestfield, Western Australia· UNKNOWN
Forrestfield experiences high temperatures during summer, with heatwaves becoming more frequent and intense. This poses a risk to vulnerable populations. Climate change is expected to worsen heat conditions.Updated 14 Mar 2026

Heat Risk Score

7.0/10

Forrestfield experiences high temperatures during summer, with heatwaves becoming more frequent and intense. This poses a risk to vulnerable populations. Climate change is expected to worsen heat conditions.

Key Facts

Heat Risk
Forrestfield experiences high temperatures during summer, with heatwaves becoming more frequent and intense. This poses a risk to vulnerable populations. Climate change is expected to worsen heat conditions.
Trend
increasing
Suburb
Forrestfield, WA
Overall Risk
Medium
Postcode
6058
Highest high-risk exposure
15.1% of land (bushfire)

Heat Risk Analysis

Forrestfield in Western 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 Forrestfield 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.

Heatwaves are becoming more frequent and intense.

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

Forrestfield (postcode 6058) 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 (15.1% of land in high-risk zones), surface flood (8.2% of land in high-risk zones), tropical cyclone (7.6% of land in high-risk zones). Exposure is not uniform across Forrestfield — 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 Temp32.5 °C
Heat Stress Events/Year5
Urban Heat ContextHeatwaves are becoming more frequent and intense.

Historical Events

2019
Moderate

A prolonged heatwave in Perth caused heat stress and health concerns for Forrestfield residents.

Adaptation & Mitigation Actions

Bushfire Preparedness

Immediate

Prepare your home and property for bushfires by clearing vegetation, creating a firebreak, and having a bushfire survival plan.

Est. cost: Low

Flood Mitigation

Near-term

Improve stormwater drainage around your property and consider installing flood barriers if you live in a flood-prone area.

Est. cost: Medium

Heatwave Preparedness

Immediate

Install air conditioning or fans, stay hydrated, and avoid strenuous activity during heatwaves. Check on vulnerable neighbors and family members.

Est. cost: Low

Water Conservation

Long-term

Implement water-saving measures in your home and garden to reduce water consumption and prepare for potential droughts.

Est. cost: Low

Council & Emergency Services

City of Kalamunda
Emergency Services

Data last updated: 14 March 2026

Explore Forrestfield Risk Reports

Frequently Asked Questions

How hot does Forrestfield get in summer?

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

Is extreme heat increasing in Forrestfield?

Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for Western Australia. Continued warming is likely through 2050 under all emissions scenarios.

How does heat affect energy costs for Forrestfield 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 Forrestfield and the performance of your building envelope.

What heat mitigation measures work best in Forrestfield?

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 Forrestfield is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 15.1% of Forrestfield in high-risk zones for bushfire, with a further 70.3% 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 Forrestfield Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Forrestfield, Western 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