Climate Risk Profile: Bonnells Bay, NSW
Bonnells Bay faces moderate climate risks, primarily from flooding, heatwaves, and coastal hazards. Sea level rise and increased rainfall intensity are key drivers of these risks. Residents should prepare for more frequent extreme weather events.
Is Bonnells Bay Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Bonnells Bay, New South Wales, covering flood, bushfire, sea level rise and more.
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Overall Risk Score
Hazard Breakdown
Flood, bushfire, heat, coastal and storm exposure are all assessed in this area. The score that matters is the property's own: a ClimateNest report scores the address across eight hazards, with insurance and value projections to 2050.
Climate Hazard Breakdown for Bonnells Bay
Flood
Bonnells Bay faces a moderate risk of flooding due to its proximity to Lake Macquarie and local waterways. Intense rainfall events can lead to stormwater runoff and potential inundation of low-lying areas.
Key drivers:
- ·Increased rainfall intensity
- ·Sea level rise
Bushfire
The bushfire risk in Bonnells Bay is moderate. While not immediately adjacent to dense bushland, the suburb is located within a region prone to bushfires during hot and dry conditions.
Key drivers:
- ·Dry vegetation
- ·High temperatures
Heat
Bonnells Bay is expected to experience an increase in the frequency and intensity of heatwaves. Higher average temperatures and more extreme heat days will pose a risk to vulnerable populations.
Key drivers:
- ·Global warming
- ·Urban heat island effect
Coastal
Located on the shores of Lake Macquarie, Bonnells Bay is susceptible to coastal hazards such as erosion and inundation from storm surges. Sea level rise will exacerbate these risks over time.
Key drivers:
- ·Sea level rise
- ·Storm surge
Wind
Data being compiled
Storm
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Social
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Energy
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In-Depth Climate Risk Guides for Bonnells Bay
Property buying guide with climate risk assessment
Flood zone mapping, historical events, and projections
BAL assessment, vegetation proximity, and fire history
Multi-hazard safety assessment to 2050
Severe weather, hail, and wind risk analysis
Extreme heat days, urban heat island, and cooling costs
Premium estimates and insurance availability
Climate-adjusted property investment analysis
Detailed Hazard Analysis
heat Risk
Bonnells Bay is expected to experience an increase in the frequency and intensity of heatwaves. Higher average temperatures and more extreme heat days will pose a risk to vulnerable populations.
Primary Drivers
- ·Global warming
- ·Urban heat island effect
flood Risk
Bonnells Bay faces a moderate risk of flooding due to its proximity to Lake Macquarie and local waterways. Intense rainfall events can lead to stormwater runoff and potential inundation of low-lying areas.
Primary Drivers
- ·Increased rainfall intensity
- ·Sea level rise
- ·Urban development
coastal Risk
Located on the shores of Lake Macquarie, Bonnells Bay is susceptible to coastal hazards such as erosion and inundation from storm surges. Sea level rise will exacerbate these risks over time.
Primary Drivers
- ·Sea level rise
- ·Storm surge
- ·Erosion
bushfire Risk
The bushfire risk in Bonnells Bay is moderate. While not immediately adjacent to dense bushland, the suburb is located within a region prone to bushfires during hot and dry conditions.
Primary Drivers
- ·Dry vegetation
- ·High temperatures
- ·Strong winds
What This Means for Property Owners
Insurance Outlook
Insurance premiums may increase due to climate risks.
Price Impact
Properties in high-risk areas may experience price stagnation or decline.
Buyer Checklist
- 1.Check flood maps and bushfire prone area designations.
- 2.Assess property's vulnerability to heatwaves.
- 3.Inquire about insurance costs and coverage.
- 4.Consider long-term climate risks when making a purchase decision.
How the region's climate is projected to change
Regional projections, not a forecast for this street. Figures are from the WA Department of Water and Environmental Regulation's climate projections for the South Western Flatlands region, which draws on CSIRO and Bureau of Meteorology modelling.
Temperature
+0.5 to 1.1°C by 2030
Above the 1986–2005 climate, on all emissions scenarios. By 2090, 1.2 to 2.0°C under intermediate emissions or 2.6 to 4.0°C under high emissions.
Rainfall
Winter rain down up to 15% by 2030
The South West has been drying since 1970, and the decline has been larger than anywhere else in Australia. Heavy rainfall events are projected to become more intense even as totals fall.
Fire weather
Harsher, magnitude uncertain
High confidence that fire weather becomes harsher, low confidence in the size of the change, because it depends heavily on summer rainfall.
Sea level
+0.12 m by 2030
At the Fremantle gauge, range 0.07 to 0.16 m. Very high confidence that sea levels continue to rise through the century.
Source: Department of Water and Environmental Regulation (WA), Western Australian climate projections: summary, September 2021, South Western Flatlands chapter. Read the projections →
Adaptation Recommendations
Improve Drainage Infrastructure
Near-termUpgrade stormwater drainage systems to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: Medium
Learn moreImplement Heat Action Plans
ImmediateDevelop and implement heat action plans to protect vulnerable populations during heatwaves, including cooling centers and community outreach programs.
Est. cost: Low
Learn moreProtect Coastal Areas
Long-termImplement coastal protection measures, such as seawalls and beach nourishment, to reduce the risk of erosion and inundation from sea level rise and storm surges.
Est. cost: High
Learn moreRaise Community Awareness
Near-termEducate residents about climate risks and adaptation measures through community workshops, online resources, and public awareness campaigns.
Est. cost: Low
Learn moreAbout Bonnells Bay's Climate Risk Profile
Bonnells Bay, situated on the western side of Lake Macquarie, is vulnerable to a range of climate-related hazards. The suburb's low-lying areas are particularly susceptible to flooding from intense rainfall and rising lake levels. Climate change is projected to increase the frequency and intensity of these rainfall events, exacerbating the flood risk.
Heatwaves are also a growing concern for Bonnells Bay. As average temperatures rise, the suburb will experience more days of extreme heat, posing health risks to vulnerable populations, such as the elderly and those with pre-existing medical conditions. The urban environment can amplify the effects of heatwaves, creating an urban heat island effect.
Being located on the shores of Lake Macquarie, Bonnells Bay is also exposed to coastal hazards. Sea level rise is expected to increase the risk of erosion and inundation from storm surges. These hazards can damage property and infrastructure, and disrupt community life.
Addressing these climate risks requires a combination of adaptation and mitigation measures. Adaptation strategies include improving drainage infrastructure, implementing early warning systems, and promoting heat-safe practices. Mitigation efforts focus on reducing greenhouse gas emissions to slow the pace of climate change.
Suburb pages describe the local picture. The address-level assessment, with its data sources and its dollar projections, is in the ClimateNest report.
Local Government Resources
Lake Macquarie City Council
Frequently Asked Questions
What are the main climate change risks for Bonnells Bay?
The main climate change risks for Bonnells Bay include increased flooding, more frequent and intense heatwaves, and coastal hazards such as erosion and inundation from sea level rise.
How will sea level rise affect Bonnells Bay?
Sea level rise is expected to increase the risk of erosion and inundation in low-lying areas of Bonnells Bay, potentially damaging property and infrastructure.
What can I do to prepare for heatwaves in Bonnells Bay?
During heatwaves, it's important to stay hydrated, seek air-conditioned environments, and check on vulnerable neighbors and family members.
Where can I find information about flood risks in Bonnells Bay?
You can find information about flood risks in Bonnells Bay on the Lake Macquarie City Council website and the NSW State Emergency Service website.
What is the council doing to address climate change in Bonnells Bay?
Lake Macquarie City Council is implementing a range of measures to address climate change, including upgrading drainage infrastructure, developing heat action plans, and promoting sustainable practices.
Get your property's risk report
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What A$49 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections