Climate Risk in Sans Souci, NSW

Sans Souci, New South Wales· Bayside· 2219
Updated May 2026

Sans Souci is a coastal suburb in NSW that faces increasing risks from flooding, heatwaves, and coastal erosion due to climate change. Sea level rise and more intense weather events are key drivers of these risks. Residents should prepare for potential impacts and consider adaptation measures.

Is Sans Souci Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Sans Souci, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

What A$49 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$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections

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Overall Risk Score

Address-level

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 Sans Souci

Flood

Sans Souci faces a notable risk of flooding due to its low-lying coastal location and proximity to Botany Bay. Sea level rise and increased rainfall intensity are expected to exacerbate this risk.

Key drivers:

  • ·Sea level rise
  • ·Increased rainfall intensity

Bushfire

The risk of bushfire in Sans Souci is relatively low due to its urban environment and limited vegetation. However, surrounding areas with more bushland pose a potential threat.

Key drivers:

  • ·Proximity to bushland
  • ·Dry vegetation

Heat

Sans Souci experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This poses a risk to vulnerable populations.

Key drivers:

  • ·Rising average temperatures
  • ·Increased frequency of heatwaves

Coastal

As a coastal suburb, Sans Souci is vulnerable to coastal erosion and inundation from sea level rise and storm surges. These risks are projected to increase significantly in the coming decades.

Key drivers:

  • ·Sea level rise
  • ·Storm surge

Wind

Data being compiled

Storm

Data being compiled

Social

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Energy

Data being compiled

In-Depth Climate Risk Guides for Sans Souci

Detailed Hazard Analysis

heat Risk

Sans Souci experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This poses a risk to vulnerable populations.

Primary Drivers

  • ·Rising average temperatures
  • ·Increased frequency of heatwaves
  • ·Urban heat island effect
Data source

flood Risk

Sans Souci faces a notable risk of flooding due to its low-lying coastal location and proximity to Botany Bay. Sea level rise and increased rainfall intensity are expected to exacerbate this risk.

Primary Drivers

  • ·Sea level rise
  • ·Increased rainfall intensity
  • ·Storm surge
Data source

coastal Risk

As a coastal suburb, Sans Souci is vulnerable to coastal erosion and inundation from sea level rise and storm surges. These risks are projected to increase significantly in the coming decades.

Primary Drivers

  • ·Sea level rise
  • ·Storm surge
  • ·Coastal erosion
Data source

bushfire Risk

The risk of bushfire in Sans Souci is relatively low due to its urban environment and limited vegetation. However, surrounding areas with more bushland pose a potential threat.

Primary Drivers

  • ·Proximity to bushland
  • ·Dry vegetation
  • ·Wind
Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to climate risks.

Price Impact

Property values may be affected by increasing climate risks.

Buyer Checklist

  • 1.Check flood maps and insurance costs.
  • 2.Assess coastal erosion risks.
  • 3.Consider heatwave preparedness.
  • 4.Review council climate adaptation plans.

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-term

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

Est. cost: High

Learn more

Protect coastal areas

Near-term

Implement coastal protection measures such as seawalls and beach nourishment to mitigate erosion and inundation.

Est. cost: Very High

Learn more

Develop heatwave preparedness plans

Immediate

Create community-level heatwave preparedness plans and provide cooling centers for vulnerable residents.

Est. cost: Medium

Learn more

Raise awareness of climate risks

Long-term

Educate residents about climate change impacts and adaptation measures through community workshops and online resources.

Est. cost: Low

Learn more

About Sans Souci's Climate Risk Profile

Sans Souci, located in the Bayside Council area of New South Wales, is a suburb that is increasingly vulnerable to the impacts of climate change. Its low-lying coastal location makes it particularly susceptible to flooding from sea level rise and storm surges. The risk of coastal erosion is also a significant concern, threatening infrastructure and property along the shoreline.

Rising average temperatures and more frequent heatwaves pose a health risk to residents, especially the elderly and those with pre-existing conditions. The urban environment can exacerbate the heat island effect, making these events even more intense. Bushfire risk is relatively low compared to other areas, but surrounding bushland still presents a potential threat during dry periods.

The Bayside Council is developing strategies to address climate change impacts, but individual and community-level adaptation measures are also crucial. These include improving drainage infrastructure, protecting coastal areas, and implementing heatwave preparedness plans.

Understanding the specific risks and taking proactive steps can help residents of Sans Souci mitigate the potential impacts of climate change and build a more resilient community. Staying informed about local emergency plans and heeding warnings during extreme weather events is also essential.

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

Frequently Asked Questions

What are the main climate change risks in Sans Souci?

The main climate change risks in Sans Souci are flooding, coastal erosion, and heatwaves. These risks are projected to increase in the coming decades due to sea level rise and more extreme weather events.

How will sea level rise affect Sans Souci?

Sea level rise will increase the risk of coastal inundation and erosion in Sans Souci, potentially damaging property and infrastructure along the shoreline. Low-lying areas will be particularly vulnerable.

What is the council doing to address climate change?

The Bayside Council is developing strategies to address climate change impacts, including improving drainage infrastructure, protecting coastal areas, and implementing heatwave preparedness plans. Check their website for details.

How can I prepare for heatwaves in Sans Souci?

During heatwaves, stay indoors in air-conditioned environments, drink plenty of water, and avoid strenuous activities. Check on elderly neighbors and friends who may be vulnerable.

Where can I find information about flood risks in Sans Souci?

You can find information about flood risks in Sans Souci on the Bayside Council website, including flood maps and emergency plans.

Get your property's risk report

This suburb assessment covers the area. For a precise address-level climate risk report for any specific property in Sans Souci, use our analysis tool.

Check Your flood Risk Now

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Free instant previewCSIRO-powered data

What A$49 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$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections