Heat Risk in Ourimbah, NSW: 2026 Assessment
Heat Risk Score
7.0/10Ourimbah is expected to experience more frequent and intense heatwaves in the future. This will increase the risk of heatstroke and other heat-related illnesses, particularly for vulnerable populations.
Key Facts
- Heat Risk
- Ourimbah is expected to experience more frequent and intense heatwaves in the future. This will increase the risk of heatstroke and other heat-related illnesses, particularly for vulnerable populations.
- Trend
- increasing
- Suburb
- Ourimbah, NSW
- Overall Risk
- Medium
- Postcode
- 2258
- Highest high-risk exposure
- 15% of land (bushfire)
Heat Risk Analysis
Ourimbah in New South Wales 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 Ourimbah 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 can pose a significant health risk to vulnerable residents.
Get an address-level heat risk assessment from ClimateNest for Ourimbah including cooling cost estimates, heatwave vulnerability scoring, and adaptation recommendations tailored to your property.
Ourimbah (postcode 2258) 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% of land in high-risk zones), riverine flood (8.4% of land in high-risk zones), surface flood (8.2% of land in high-risk zones). Exposure is not uniform across Ourimbah — 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
Historical Events
A prolonged heatwave affected the Central Coast, with temperatures soaring above 40 degrees Celsius. This put a strain on the electricity grid and caused health problems for vulnerable residents.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure to mitigate flood risk, such as improved drainage systems and flood barriers.
Est. cost: Medium
Bushfire Preparedness
ImmediateClear vegetation around properties, develop a bushfire survival plan, and stay informed about fire danger ratings.
Est. cost: Low
Heatwave Preparedness
ImmediateInstall air conditioning or fans, stay hydrated, and avoid strenuous activity during heatwaves. Check on vulnerable neighbors and family members.
Est. cost: Low
Sustainable Urban Planning
Long-termImplement sustainable urban planning practices to reduce the urban heat island effect and minimize the impact of development on flood risk.
Est. cost: High
Council & Emergency Services
Explore Ourimbah Risk Reports
View other climate risk assessments for Ourimbah:
Frequently Asked Questions
How hot does Ourimbah get in summer?
Ourimbah in New South Wales experiences summer temperatures consistent with the regional climate. BOM publishes historical temperature data for weather stations near Ourimbah. Get a property-specific heat exposure assessment with projected cooling costs from ClimateNest.
Is extreme heat increasing in Ourimbah?
Australia-wide, extreme heat events have become more frequent since the mid-20th century, and this trend is consistent with CSIRO climate projections for New South Wales. Continued warming is likely through 2050 under all emissions scenarios.
How does heat affect energy costs for Ourimbah 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 Ourimbah and the performance of your building envelope.
What heat mitigation measures work best in Ourimbah?
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 Ourimbah is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 15% of Ourimbah in high-risk zones for bushfire, with a further 63.3% 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 Ourimbah Safe from Climate Risk?
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