Climate Risk in Osterley, NSW

Osterley, New South Wales
Medium Risk
Updated May 2026

Osterley faces moderate climate risks, primarily from flooding and heatwaves. Climate change is expected to increase the frequency and intensity of these events. Residents should take steps to prepare for these risks.

Overall Risk Score

52/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
3.0
Heat
6.0
Coastal
1.0

Climate Hazard Breakdown for Osterley

increasing

Flood

65/100

Osterley faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Key drivers:

  • ·Increased rainfall intensity
  • ·Sea level rise
increasing

Bushfire

30/100

The bushfire risk in Osterley is relatively low compared to other areas in NSW. However, hotter and drier conditions due to climate change could increase the risk.

Key drivers:

  • ·Increased temperatures
  • ·Drier conditions
increasing

Heat

60/100

Osterley is likely to experience more frequent and intense heatwaves due to climate change. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.

Key drivers:

  • ·Increased temperatures
  • ·Urban heat island effect
stable

Coastal

10/100

Osterley is not directly exposed to coastal hazards. The risk from sea level rise and coastal erosion is minimal.

Key drivers:

  • ·Sea level rise
stable

Wind

28/100

Moderate wind risk — East Coast Lows and gust fronts

stable

Storm

39/100

Moderate storm risk — severe thunderstorms and hail

stable

Social

21/100

Moderate social stability — mixed urban density

increasing

Energy

35/100

Moderate energy costs — climate-driven cooling demand

In-Depth Climate Risk Guides for Osterley

Detailed Hazard Analysis

heat Risk

60/100

Osterley is likely to experience more frequent and intense heatwaves due to climate change. This poses a risk to vulnerable populations, such as the elderly and those with chronic health conditions.

Primary Drivers

  • ·Increased temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

flood Risk

65/100

Osterley faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, exacerbating flood risk.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Sea level rise
  • ·Urban development

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

10/100

Osterley is not directly exposed to coastal hazards. The risk from sea level rise and coastal erosion is minimal.

Primary Drivers

  • ·Sea level rise

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

30/100

The bushfire risk in Osterley is relatively low compared to other areas in NSW. However, hotter and drier conditions due to climate change could increase the risk.

Primary Drivers

  • ·Increased temperatures
  • ·Drier conditions
  • ·Vegetation dryness

Projections (RCP8.5)

2030

3.5

2050

4.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to flood and heatwave risks.

Price Impact

Properties in flood-prone areas may experience price impacts.

Buyer Checklist

  • 1.Check flood maps
  • 2.Assess heatwave resilience
  • 3.Review insurance options

Local Climate Evidence

Flood Evidence

Nearest Waterway
Local creeks and drainage systems
Elevation Range
Generally low-lying
Flood Zone
Potentially within flood zones

Check local council flood maps for specific property risk.

View council flood map

Bushfire Evidence

Distance to Bushland
Variable, some areas near bushland
Planning Overlay
Check NSW RFS website
Bushfire Prone Area
Yes

Refer to the NSW Rural Fire Service for detailed bushfire risk assessments.

Heat Evidence

Avg January Max Temp
30°C
Heat Stress Days/Year
3 days

Plan for more frequent heatwave conditions.

Coastal Evidence

Distance to Coast
20 km
Sea Level Rise Exposure
Low
Erosion Risk
Low

Historical Climate Events

2022
floodModerate

Significant rainfall caused localized flooding in Osterley, impacting some residential areas.

Source
2020
heatwaveModerate

A prolonged heatwave affected Osterley, with temperatures exceeding 40°C for several days.

Source
2011
floodMinor

Heavy rainfall led to minor flooding in low-lying areas of Osterley.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5

HazardToday20302050
flood657.0(+0.5)7.5(+1.0)
bushfire303.3(+0.3)3.5(+0.5)
heat606.7(+0.7)7.2(+1.2)
coastal101.01.0

By 2030, Osterley is projected to experience a notable increase in heatwave frequency and intensity, along with a heightened risk of flooding due to more intense rainfall events. Bushfire risk will also slightly increase.

CSIRO Climate Projections

Adaptation Recommendations

Improve Drainage Infrastructure

Near-term

Upgrade drainage systems to handle increased rainfall intensity and reduce flood risk.

Est. cost: High

Learn more

Develop Heatwave Management Plan

Immediate

Implement a plan to protect vulnerable populations during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Medium

Learn more

Promote Water Conservation

Long-term

Encourage water conservation measures to reduce strain on water resources during drier periods.

Est. cost: Low

Learn more

Enhance Bushfire Preparedness

Near-term

Provide residents with information and resources to prepare for bushfires, including property maintenance and evacuation plans.

Est. cost: Low

Learn more

About Osterley's Climate Risk Profile

Osterley, NSW, is projected to experience increased climate-related challenges in the coming decades. The primary risks are associated with flooding and heatwaves, both of which are expected to worsen due to climate change.

Flooding is a significant concern for Osterley due to its location and existing drainage infrastructure. Increased rainfall intensity will likely lead to more frequent and severe flood events, impacting properties and infrastructure. Residents should be aware of flood risks and take appropriate precautions.

Heatwaves are also a growing threat, with projections indicating more frequent and intense heat events. This poses a particular risk to vulnerable populations, such as the elderly and those with chronic health conditions. Access to cooling and adequate hydration will be crucial during these periods.

While coastal risks are relatively low, the potential for bushfire risk is present and could increase with drier conditions. Staying informed about local fire danger ratings and maintaining properties to reduce fire hazards is important.

Overall, Osterley needs to focus on adaptation measures to mitigate the impacts of climate change. This includes improving drainage infrastructure, implementing heatwave management plans, and promoting community awareness of climate risks.

Data sources: BOM · CSIRO · NSW State Emergency Service · NSW Rural Fire Service

Local Government Resources

Frequently Asked Questions

What are the main climate change risks in Osterley?

The main risks are increased flooding due to more intense rainfall and more frequent and severe heatwaves.

How will climate change affect property values in Osterley?

Properties in flood-prone areas may experience price impacts, and insurance premiums are likely to increase.

What can I do to prepare for heatwaves in Osterley?

Ensure you have access to cooling, stay hydrated, and check on vulnerable neighbors.

Where can I find information about flood risks in Osterley?

Check the local council flood maps and the NSW State Emergency Service website.

How can I reduce my bushfire risk in Osterley?

Maintain your property, clear vegetation around your home, and have a bushfire survival plan.

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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