Is Great Mackerel Beach, NSW Climate Safe? 2026 Assessment
Climate Safety Score
7.2/10Climate risk is high — address assessment recommended
Key Facts
- Climate Safety
- High
- Flood
- Great Mackerel Beach faces a moderate risk of flooding, primarily from heavy rainfall and potential storm surges. The area's low-lying coastal geography makes it susceptible to inundation.
- Bushfire
- The suburb is at high risk of bushfires due to its proximity to dense bushland. Hot, dry conditions and strong winds can exacerbate the risk.
- Heat
- Great Mackerel Beach is likely to experience more frequent and intense heatwaves, posing a risk to vulnerable populations.
- Storm
- Moderate storm risk — East Coast Lows bring severe weather including hail and damaging winds
- Postcode
- 2108
- Region
- Regional
- Median property value
- $500,000
- Dominant hazard
- extreme heat (5/10)
- Highest high-risk exposure
- 22% of land (bushfire)
Climate Safety Analysis
Great Mackerel Beach in New South Wales has an overall climate safety rating of High. This multi-hazard assessment combines flood, bushfire, heat, coastal, and storm risk data with climate projections to 2050 from CSIRO and the Bureau of Meteorology.
Key factors affecting Great Mackerel Beach's climate safety include heat, flood, coastal, bushfire. Each hazard is assessed independently and combined for an overall picture. Australia has warmed by approximately 1.5 °C since 1910, with flow-on effects to fire weather, extreme rainfall, and heatwave frequency.
Climate safety for property in Great Mackerel Beach is not uniform — it varies by address. Factors such as elevation, distance to waterways, proximity to bushland, and local drainage all influence actual risk at a specific property. Two nearby properties can have materially different risk profiles.
For a complete property-specific climate safety report for Great Mackerel Beach including address-level hazard mapping, insurance outlook, and adaptation recommendations, use the ClimateNest full analysis tool.
Great Mackerel Beach located in Regional (postcode 2108), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $500,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Great Mackerel Beach.
Across the six hazard axes ClimateNest models, the dominant climate risk in Great Mackerel Beach is extreme heat (score 5/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.
Whether you are buying, selling or renovating in Great Mackerel Beach, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Great Mackerel Beach are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
Heavy rainfall caused localized flooding in low-lying areas of Great Mackerel Beach.
Bushfires in the surrounding region caused smoke haze and increased fire risk in Great Mackerel Beach.
A severe storm caused minor damage to coastal properties.
Bushfires in Ku-ring-gai Chase National Park threatened the suburb.
Adaptation & Mitigation Actions
Develop a community bushfire plan
ImmediateCreate a detailed plan outlining evacuation routes, firebreaks, and community responsibilities during bushfire events.
Est. cost: Low
Implement coastal erosion management strategies
Near-termInvest in seawalls, beach nourishment, and other measures to protect coastal properties from erosion.
Est. cost: High
Improve flood resilience of buildings
Near-termElevate homes, install flood barriers, and improve drainage systems to reduce flood damage.
Est. cost: Medium
Establish a heatwave early warning system
ImmediateImplement a system to alert residents of impending heatwaves and provide guidance on staying safe.
Est. cost: Low
Promote water conservation
Long-termEncourage residents to conserve water through rainwater harvesting and efficient irrigation practices.
Est. cost: Low
Council & Emergency Services
Explore Great Mackerel Beach Risk Reports
View other climate risk assessments for Great Mackerel Beach:
Frequently Asked Questions
Is Great Mackerel Beach safe from climate change?
No location in Australia is entirely immune to climate change impacts. Great Mackerel Beach has an overall High climate risk rating. Understanding the specific hazards at your property address — not just the suburb average — provides the most reliable risk picture.
Which climate hazard poses the biggest risk in Great Mackerel Beach?
The dominant hazard for Great Mackerel Beach depends on geography and local environment. Proximity to waterways elevates flood risk, while proximity to bushland increases bushfire risk. ClimateNest's multi-hazard analysis identifies the highest-risk hazards for any specific address.
How does Great Mackerel Beach compare to nearby suburbs for climate safety?
Nearby suburbs may have different climate risk profiles depending on elevation, vegetation cover, drainage patterns, and land use. ClimateNest allows comparison of climate safety scores across New South Wales suburbs.
Should I be concerned about buying property in Great Mackerel Beach?
Climate risk should be one factor in your decision, alongside price, location, and amenity. An informed buyer understands the specific risks at a property address and factors insurance costs and climate projections into their assessment of long-term value.
What climate projections should I know for Great Mackerel Beach?
Key projections for New South Wales from CSIRO include increased average temperatures, more frequent hot days, changes in rainfall seasonality, longer fire seasons, and potential increases in extreme rainfall intensity. These trends inform the long-term outlook for Great Mackerel Beach.
What are the main climate risks in Great Mackerel Beach?
ClimateNest's suburb model rates Great Mackerel Beach's dominant climate risk as extreme heat at 5/10 on a 0–10 index, followed by damaging wind (4/10) and severe storm (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Great Mackerel Beach.
What share of Great Mackerel Beach is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 22% of Great Mackerel Beach in high-risk zones for bushfire, with a further 67.6% 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 Great Mackerel Beach Safe from Climate Risk?
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*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections