What the mapping shows for Mackay Harbour
Part of Mackay Harbour is mapped as subject to coastal inundation.
62.1% of Mackay Harbour is mapped as part of the Queensland coastal management district (coastal management district declared under the Coastal Management Act 2016)
Queensland Coastal Management District, State of Queensland (Department of Environment, Tourism, Science and Innovation), Creative Commons Attribution 4.0, retrieved 2026-10-23
This is a share of the suburb's land area from a published state dataset, not an assessment of any property. A ClimateNest report scores the individual address across eight hazards, with insurance and value projections to 2050.
Check an address in Mackay Harbour →Heat Risk in Mackay Harbour, QLD: 2026 Assessment
62.1% of Mackay Harbour is mapped as part of the Queensland coastal management district (coastal management district declared under the Coastal Management Act 2016)
That figure covers the suburb. Check whether your address is inside it - address-level, sourced, A$49.
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Heat Risk Score
Not assessedMackay Harbour experiences high temperatures and humidity during summer, leading to heat stress. Climate change is expected to increase the frequency and intensity of heatwaves.
Key Facts
- Heat Risk
- Mackay Harbour experiences high temperatures and humidity during summer, leading to heat stress. Climate change is expected to increase the frequency and intensity of heatwaves.
- Trend
- increasing
- Suburb
- Mackay Harbour, QLD
- Overall Risk
- Medium
- Postcode
- 4740
Heat Risk Analysis
Mackay Harbour in Queensland faces location-specific 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 Mackay Harbour 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 suburb experiences several days above 35°C during summer, increasing heat stress risk.
Get an address-level heat risk assessment from ClimateNest for Mackay Harbour including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Mackay Harbour. An address-level check is what tells you about a specific property before you buy, sell or insure it.
Local Hazard Evidence
Historical Events
A prolonged heatwave resulted in increased hospital admissions and strain on the electricity grid.
Adaptation & Mitigation Actions
Improve Drainage Infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flash flooding.
Est. cost: High
Construct Coastal Defenses
Long-termBuild seawalls and other coastal defenses to protect against sea level rise and storm surge.
Est. cost: Very High
Implement Heatwave Early Warning System
ImmediateDevelop and implement a heatwave early warning system to alert residents to impending heatwaves and provide advice on how to stay safe.
Est. cost: Low
Promote Water Conservation
Near-termEncourage residents to conserve water to reduce demand on water resources during droughts.
Est. cost: Low
Council & Emergency Services
Explore Mackay Harbour Risk Reports
View other climate risk assessments for Mackay Harbour:
Frequently Asked Questions
How hot does Mackay Harbour get in summer?
Mackay Harbour in Queensland experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Mackay Harbour. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Mackay Harbour?
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 Mackay Harbour 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 Mackay Harbour and the performance of your building envelope.
What heat mitigation measures work best in Mackay Harbour?
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.
Is Mackay Harbour Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Mackay Harbour, Queensland, covering flood, bushfire, sea level rise and more.
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Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections