📮 Rosehill postcode: 2142

Heat Risk in Rosehill, QLD: 2026 Assessment

Rosehill, Queensland· City of Parramatta· 2142
Rosehill is susceptible to heatwaves, particularly during the summer months. Climate change is projected to increase the frequency and severity of heatwaves, posing health risks to vulnerable populations.Updated 24 May 2026

Heat Risk Score

6.0/10

Rosehill is susceptible to heatwaves, particularly during the summer months. Climate change is projected to increase the frequency and severity of heatwaves, posing health risks to vulnerable populations.

Key Facts

Heat Risk
Rosehill is susceptible to heatwaves, particularly during the summer months. Climate change is projected to increase the frequency and severity of heatwaves, posing health risks to vulnerable populations.
Trend
increasing
Suburb
Rosehill, QLD
Overall Risk
Medium
Postcode
4370
Highest high-risk exposure
14.3% of land (riverine flood)

Heat Risk Analysis

Rosehill in Queensland 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 Rosehill 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.

Urban heat island effect contributes to higher temperatures in built-up areas.

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

Rosehill (postcode 4370) 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 riverine flood (14.3% of land in high-risk zones), surface flood (12.1% of land in high-risk zones), bushfire (11.8% of land in high-risk zones). Exposure is not uniform across Rosehill — 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 ContextUrban heat island effect contributes to higher temperatures in built-up areas.

Historical Events

2020
Moderate

Prolonged heatwave conditions affected Sydney, with Rosehill experiencing high temperatures.

Adaptation & Mitigation Actions

Improve Flood Defenses

Immediate

Invest in infrastructure upgrades to mitigate flood risk, such as improved drainage systems and levees.

Est. cost: High

Implement Heatwave Action Plan

Near-term

Develop and implement a heatwave action plan to protect vulnerable residents during extreme heat events.

Est. cost: Medium

Increase Urban Green Space

Near-term

Increase the amount of green space in Rosehill to reduce the urban heat island effect and improve community resilience.

Est. cost: Medium

Raise Awareness of Climate Risks

Long-term

Educate residents about climate risks and adaptation measures through community workshops and outreach programs.

Est. cost: Low

Council & Emergency Services

City of Parramatta
Emergency Services

Data last updated: 24 May 2026

Explore Rosehill Risk Reports

Frequently Asked Questions

How hot does Rosehill get in summer?

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

Is extreme heat increasing in Rosehill?

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

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

What heat mitigation measures work best in Rosehill?

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 Rosehill is exposed to high riverine flood risk?

ClimateNest's hazard overlay maps 14.3% of Rosehill in high-risk zones for riverine flood, with a further 79.2% 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 Rosehill Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Rosehill, Queensland, 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