Climate Risk in Merewether, NSW

Merewether, New South Wales· Newcastle· 2291
Updated Apr 2026

Merewether is a coastal suburb in New South Wales that faces moderate climate risks. The primary concerns are flooding, heatwaves, and coastal hazards. Residents should prepare for increasing temperatures and potential impacts from sea level rise.

Is Merewether Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Merewether, 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 Merewether

Flood

Merewether faces a moderate risk of flooding due to its proximity to coastal areas and 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 Merewether is relatively low due to its urban setting and limited vegetation. However, nearby bushland areas can pose a threat during extreme fire weather conditions.

Key drivers:

  • ·Dry vegetation
  • ·High temperatures

Heat

Merewether experiences a high risk of heatwaves, particularly during the summer months. Rising temperatures can lead to heat stress and health impacts, especially for vulnerable populations.

Key drivers:

  • ·Rising global temperatures
  • ·Urban heat island effect

Coastal

Merewether faces a moderate risk from coastal hazards, including sea level rise and coastal erosion. The suburb's proximity to the coastline makes it vulnerable to these impacts.

Key drivers:

  • ·Sea level rise
  • ·Increased storm intensity

Wind

Data being compiled

Storm

Data being compiled

Social

Data being compiled

Energy

Data being compiled

In-Depth Climate Risk Guides for Merewether

Detailed Hazard Analysis

heat Risk

Merewether experiences a high risk of heatwaves, particularly during the summer months. Rising temperatures can lead to heat stress and health impacts, especially for vulnerable populations.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect
Data source

flood Risk

Merewether faces a moderate risk of flooding due to its proximity to coastal areas and 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
Data source

coastal Risk

Merewether faces a moderate risk from coastal hazards, including sea level rise and coastal erosion. The suburb's proximity to the coastline makes it vulnerable to these impacts.

Primary Drivers

  • ·Sea level rise
  • ·Increased storm intensity
Data source

bushfire Risk

The bushfire risk in Merewether is relatively low due to its urban setting and limited vegetation. However, nearby bushland areas can pose a threat during extreme fire weather conditions.

Primary Drivers

  • ·Dry vegetation
  • ·High temperatures
  • ·Strong winds
Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase in high-risk areas.

Price Impact

Properties in vulnerable locations may experience price reductions.

Buyer Checklist

  • 1.Check flood maps and bushfire prone area designations.
  • 2.Assess property's vulnerability to sea level rise and coastal erosion.
  • 3.Inquire about council's climate adaptation plans.
  • 4.Consider energy efficiency and water conservation measures.

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 stormwater drainage

Near-term

Upgrade stormwater infrastructure to reduce the risk of flooding during heavy rainfall events.

Est. cost: Medium

Learn more

Implement coastal protection measures

Long-term

Construct seawalls and other coastal defenses to protect properties from sea level rise and coastal erosion.

Est. cost: High

Learn more

Develop heatwave management plans

Immediate

Implement strategies to protect vulnerable populations during heatwaves, such as providing cooling centers and public awareness campaigns.

Est. cost: Low

Learn more

Promote energy efficiency and water conservation

Near-term

Encourage residents to reduce their carbon footprint and conserve water through incentives and education programs.

Est. cost: Low

Learn more

About Merewether's Climate Risk Profile

Merewether, a suburb of Newcastle, NSW, is increasingly vulnerable to the impacts of climate change. The suburb's coastal location makes it susceptible to sea level rise and coastal erosion, while rising temperatures are expected to exacerbate heatwave conditions. Changes in rainfall patterns may also increase the risk of flooding.

The risk of flooding in Merewether is driven by increased rainfall intensity and sea level rise. Low-lying areas are particularly vulnerable to inundation during heavy rainfall events. The bushfire risk is relatively low due to the suburb's urban setting, but nearby bushland areas can pose a threat during extreme fire weather conditions.

Heatwaves are a significant concern for Merewether, with rising temperatures expected to increase the frequency and intensity of heat stress events. Vulnerable populations, such as the elderly and those with chronic health conditions, are particularly at risk. Coastal hazards, including sea level rise and coastal erosion, pose a threat to properties and infrastructure along the coastline.

Addressing these climate risks requires a combination of adaptation and mitigation measures. Adaptation strategies include improving stormwater drainage, implementing coastal protection measures, and developing heatwave management plans. 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

Frequently Asked Questions

What are the main climate change risks in Merewether?

The main climate change risks in Merewether are flooding, heatwaves, and coastal hazards, including sea level rise and coastal erosion.

How will sea level rise affect Merewether?

Sea level rise is expected to inundate low-lying areas along the coast, potentially damaging properties and infrastructure. It will also increase the risk of coastal erosion.

What can I do to prepare for heatwaves in Merewether?

During heatwaves, stay indoors in air-conditioned environments, drink plenty of water, and avoid strenuous activities. Check on vulnerable neighbors and family members.

Is my property in Merewether at risk of flooding?

Properties in low-lying areas near the coast and waterways are at higher risk of flooding. Check the council's flood maps for more information.

What is the council doing to address climate change in Merewether?

Newcastle City Council is implementing a range of climate adaptation and mitigation measures, including upgrading stormwater infrastructure, developing coastal protection strategies, and promoting energy efficiency.

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 Merewether, use our analysis tool.

Check Your flood Risk Now

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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