Climate Risk Profile: Diamond Beach, NSW

Diamond Beach, New South Wales
Medium Risk
Updated May 2026

Diamond Beach is a coastal suburb in New South Wales that faces several climate-related risks. The area is particularly vulnerable to flooding, heatwaves, and coastal erosion, which are expected to worsen with climate change. Residents should prepare for these increasing risks.

Overall Risk Score

58/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
4.2
Heat
7.1
Coastal
5.4

Climate Hazard Breakdown for Diamond Beach

increasing

Flood

65/100

Diamond Beach faces a moderate risk of flooding, primarily from heavy rainfall and coastal inundation. The area's low-lying topography and proximity to waterways make it susceptible to both riverine and flash flooding.

Key drivers:

  • ·Increased rainfall intensity
  • ·Sea level rise
stable

Bushfire

42/100

Diamond Beach has a moderate bushfire risk due to surrounding vegetation. Hot, dry conditions during the bushfire season can increase the likelihood of fire ignition and spread.

Key drivers:

  • ·Dry vegetation
  • ·High temperatures
increasing

Heat

71/100

Diamond Beach is likely to experience more frequent and intense heatwaves. Rising average temperatures and prolonged periods of extreme heat can pose health risks, especially for vulnerable populations.

Key drivers:

  • ·Rising global temperatures
  • ·Urban heat island effect
increasing

Coastal

54/100

Diamond Beach faces a moderate risk from coastal hazards, including erosion and inundation due to sea level rise and storm surges. The coastline is vulnerable to these impacts, potentially affecting infrastructure and property.

Key drivers:

  • ·Sea level rise
  • ·Increased storm intensity
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 Diamond Beach

Detailed Hazard Analysis

heat Risk

71/100

Diamond Beach is likely to experience more frequent and intense heatwaves. Rising average temperatures and prolonged periods of extreme heat can pose health risks, especially for vulnerable populations.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.6

2050

8.2

Data source

flood Risk

65/100

Diamond Beach faces a moderate risk of flooding, primarily from heavy rainfall and coastal inundation. The area's low-lying topography and proximity to waterways make it susceptible to both riverine and flash flooding.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Sea level rise
  • ·Storm surges

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

54/100

Diamond Beach faces a moderate risk from coastal hazards, including erosion and inundation due to sea level rise and storm surges. The coastline is vulnerable to these impacts, potentially affecting infrastructure and property.

Primary Drivers

  • ·Sea level rise
  • ·Increased storm intensity
  • ·Coastal erosion

Projections (RCP8.5)

2030

5.8

2050

6.3

Data source

bushfire Risk

42/100

Diamond Beach has a moderate bushfire risk due to surrounding vegetation. Hot, dry conditions during the bushfire season can increase the likelihood of fire ignition and spread.

Primary Drivers

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

Projections (RCP8.5)

2030

4.5

2050

4.8

Data source

What This Means for Property Owners

Insurance Outlook

Premiums are likely to increase due to climate risks.

Price Impact

Properties in high-risk areas may experience price reductions.

Buyer Checklist

  • 1.Check flood maps
  • 2.Assess bushfire risk
  • 3.Consider coastal erosion potential
  • 4.Evaluate heatwave resilience
  • 5.Review insurance options

Local Climate Evidence

Flood Evidence

Nearest Waterway
Unnamed Creek
Elevation Range
0-10m
Flood Zone
Coastal Floodplain

Low-lying areas near the creek are most vulnerable.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent
Planning Overlay
RFS Bushfire Prone Land
Bushfire Prone Area
Yes

Areas bordering the bushland are at higher risk.

Heat Evidence

Avg January Max Temp
30.5°C
Heat Stress Days/Year
3 days

Heatwaves are becoming more frequent and intense.

Coastal Evidence

Distance to Coast
0.1 km
Sea Level Rise Exposure
High
Erosion Risk
Moderate

Historical Climate Events

2013
floodModerate

Heavy rainfall caused flooding in low-lying areas of Diamond Beach, affecting several homes and businesses.

Source
2017
stormModerate

A severe storm caused coastal erosion and damage to infrastructure along the Diamond Beach coastline.

Source
2019
bushfireModerate

Bushfires in the surrounding region caused smoke haze and increased fire risk in Diamond Beach.

Source
2020
heatwaveModerate

A prolonged heatwave resulted in high temperatures and increased demand for cooling in Diamond Beach.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood656.8(+0.3)7.1(+0.6)
bushfire424.4(+0.2)4.6(+0.4)
heat717.8(+0.7)8.4(+1.3)
coastal545.8(+0.4)6.2(+0.8)

By 2030, Diamond Beach is projected to experience a moderate increase in overall climate risk, with notable increases in heatwave frequency and intensity, as well as increased coastal erosion and flooding.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Upgrade drainage systems and build seawalls to protect against flooding and coastal inundation.

Est. cost: High

Learn more

Implement Heatwave Early Warning System

Immediate

Develop a system to alert residents of impending heatwaves and provide guidance on how to stay safe.

Est. cost: Low

Learn more

Protect Coastal Areas

Near-term

Implement erosion control measures, such as beach nourishment and dune stabilization, to protect coastal areas from erosion.

Est. cost: Medium

Learn more

Promote Water Conservation

Long-term

Encourage residents to conserve water through education and incentives to reduce strain on water resources during droughts.

Est. cost: Low

Learn more

Community Education Programs

Immediate

Run workshops and distribute information on preparing for climate-related disasters.

Est. cost: Low

Learn more

About Diamond Beach's Climate Risk Profile

Diamond Beach, NSW, is a coastal community that is increasingly exposed to the impacts of climate change. The primary risks include flooding from heavy rainfall and coastal inundation, more frequent and intense heatwaves, and coastal erosion due to sea level rise and storm surges.

The risk of flooding is exacerbated by the area's low-lying topography and proximity to waterways. Climate change is projected to increase rainfall intensity, leading to more frequent and severe flood events. Coastal inundation is also a concern, as sea level rise and storm surges can inundate low-lying coastal areas.

Heatwaves are another significant risk for Diamond Beach. Rising average temperatures and prolonged periods of extreme heat can pose health risks, especially for vulnerable populations such as the elderly and those with chronic health conditions. The urban heat island effect can further amplify these risks.

Coastal erosion is a long-term threat to Diamond Beach. Sea level rise and increased storm intensity can accelerate coastal erosion, potentially affecting infrastructure, property, and natural habitats. Protecting the coastline through erosion control measures is crucial for the long-term sustainability of the community.

Addressing these climate risks requires a combination of adaptation and mitigation strategies. Adaptation measures include improving flood defenses, implementing heatwave early warning systems, and protecting coastal areas from erosion. Mitigation efforts involve reducing greenhouse gas emissions to slow the pace of climate change.

Data sources: BOM · CSIRO · NSW State Emergency Service · NSW Rural Fire Service · NSW Department of Planning and Environment

Local Government Resources

Frequently Asked Questions

What are the main climate change risks for Diamond Beach?

Diamond Beach faces risks from flooding, heatwaves, coastal erosion, and bushfires, all of which are expected to worsen with climate change.

How will sea level rise affect Diamond Beach?

Sea level rise will increase the risk of coastal inundation and erosion, potentially affecting properties and infrastructure along the coastline.

What can I do to prepare for heatwaves in Diamond Beach?

Stay indoors during the hottest part of the day, drink plenty of water, and check on vulnerable neighbors and family members.

What is the council doing to address climate change in Diamond Beach?

The MidCoast Council is developing and implementing climate adaptation strategies to reduce the risks from climate change.

Where can I find information about flood risks in Diamond Beach?

You can find flood maps and information on the MidCoast Council website and the NSW State Emergency Service website.

Are there any community initiatives to address climate change in Diamond Beach?

Yes, there are local community groups working on sustainability and climate action initiatives. Check with the MidCoast Council for more information.

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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