Climate Risk in Derby, WA

Derby, Western Australia· UNKNOWN
High Risk
Updated Mar 2026

Derby faces significant climate risks, particularly from flooding, heatwaves, and coastal hazards. The town's low-lying coastal location and exposure to extreme weather events make it vulnerable to the impacts of climate change. Proactive adaptation measures are essential to protect the community and infrastructure.

Overall Risk Score

7.2/10
High

Confidence: Medium

Hazard Breakdown

Flood
8.5
Bushfire
6.0
Heat
7.5
Coastal
7.0

Detailed Hazard Analysis

heat Risk

7.5/10

Derby experiences high temperatures, particularly during the summer months, increasing the risk of heatwaves and heat stress.

Primary Drivers

  • ·Rising average temperatures
  • ·More frequent heatwaves
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.8

2050

8.2

Data source

flood Risk

8.5/10

Derby faces a high risk of flooding due to its low-lying coastal location and proximity to the Fitzroy River. Intense rainfall events can lead to riverine and flash flooding.

Primary Drivers

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

Projections (RCP8.5)

2030

8.8

2050

9.2

Data source

coastal Risk

7.0/10

As a coastal town, Derby is vulnerable to the impacts of sea level rise and coastal erosion, which can threaten infrastructure and property.

Primary Drivers

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

Projections (RCP8.5)

2030

7.3

2050

7.7

Data source

bushfire Risk

6.0/10

The risk of bushfire in Derby is moderate, with surrounding grasslands and scrubland posing a potential fire hazard during the dry season.

Primary Drivers

  • ·Prolonged dry periods
  • ·Increased temperatures
  • ·Strong winds

Projections (RCP8.5)

2030

6.3

2050

6.7

Data source

What This Means for Property Owners

Insurance Outlook

Premiums are likely to increase due to the high risk of flooding and other climate-related hazards.

Price Impact

Properties in low-lying areas may experience a decrease in value due to the risk of flooding.

Buyer Checklist

  • 1.Check flood maps and historical flood data.
  • 2.Assess the property's vulnerability to bushfire.
  • 3.Consider the potential impacts of sea level rise.
  • 4.Inquire about the availability and cost of insurance.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Fitzroy River
Elevation Range
0-10m
Flood Zone
Coastal Floodplain

Derby is situated on a coastal floodplain, making it highly susceptible to flooding from both riverine and coastal sources.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent
Planning Overlay
DFES Bushfire Prone Area Map
Bushfire Prone Area
Yes

The town is surrounded by grasslands and scrubland, which can fuel bushfires during the dry season.

Heat Evidence

Avg January Max Temp
35.5°C
Heat Stress Days/Year
15 days

Derby experiences prolonged periods of high temperatures and humidity during the summer months, increasing the risk of heat stress.

Coastal Evidence

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

Historical Climate Events

2011
floodModerate

Major flooding occurred in the Kimberley region, impacting Derby and surrounding areas.

Source
2018
heatwaveModerate

Record-breaking temperatures were recorded in Derby during a prolonged heatwave.

Source
2022
floodMajor

Severe flooding impacted Derby, causing widespread damage to property and infrastructure.

Source

Climate Outlook to 2050

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

HazardToday20302050
flood8.58.8(+0.3)9.2(+0.7)
bushfire6.06.2(+0.2)6.4(+0.4)
heat7.57.9(+0.4)8.3(+0.8)
coastal7.07.1(+0.1)7.3(+0.3)

Climate projections indicate an increase in the frequency and intensity of extreme weather events in Derby, including more frequent and severe floods, heatwaves, and coastal erosion.

CSIRO Climate Projections

Adaptation Recommendations

Upgrade Flood Defenses

Immediate

Invest in flood mitigation infrastructure, such as levees and drainage systems, to protect low-lying areas from flooding.

Est. cost: High

Learn more

Develop Heatwave Preparedness Plans

Near-term

Implement heatwave early warning systems and establish cooling centers to protect vulnerable populations during extreme heat events.

Est. cost: Medium

Learn more

Implement Coastal Protection Measures

Near-term

Construct seawalls and other coastal protection structures to reduce the risk of coastal erosion and protect infrastructure.

Est. cost: High

Learn more

Improve Bushfire Management

Long-term

Implement bushfire risk reduction strategies, such as controlled burns and vegetation management, to reduce the risk of bushfires.

Est. cost: Medium

Learn more

About Derby's Climate Risk Profile

Derby, located in the Kimberley region of Western Australia, is increasingly vulnerable to the impacts of climate change. The town's coastal location and proximity to the Fitzroy River expose it to a range of climate-related hazards, including flooding, heatwaves, and coastal erosion.

Flooding is a major concern for Derby, with intense rainfall events and storm surges posing a significant threat to property and infrastructure. The Fitzroy River can overflow its banks, inundating low-lying areas of the town. Sea level rise is exacerbating the risk of coastal flooding, particularly during high tides and storm events.

Heatwaves are becoming more frequent and intense in Derby, with rising average temperatures increasing the risk of heat stress and heatstroke. The town's urban environment can amplify the effects of heatwaves, creating an urban heat island effect. Vulnerable populations, such as the elderly and those with chronic health conditions, are particularly at risk.

Coastal erosion is also a growing concern for Derby, with sea level rise and increased storm activity threatening the town's coastline. Erosion can damage infrastructure, property, and natural habitats. Protecting the coastline through erosion control measures is essential to safeguard the community.

Addressing these climate risks requires a comprehensive and coordinated approach, involving local government, community organizations, and individual residents. Adaptation measures, such as flood mitigation infrastructure, heatwave preparedness plans, and coastal protection strategies, are crucial to building resilience and protecting Derby from the impacts of climate change.

Data sources: BOM · CSIRO · DFES

Local Government Resources

Frequently Asked Questions

What are the main climate change risks facing Derby?

Derby is primarily at risk from flooding, heatwaves, and coastal erosion due to its low-lying coastal location and exposure to extreme weather events.

How is the local council addressing climate change?

The Shire of Derby/West Kimberley is developing and implementing climate adaptation strategies to protect the community and infrastructure from the impacts of climate change.

What can residents do to prepare for heatwaves?

Residents can prepare for heatwaves by staying hydrated, seeking shade, and checking on vulnerable neighbors. The local council may also provide cooling centers during extreme heat events.

What should I do during a flood?

During a flood, it is important to stay informed about the latest warnings and follow the advice of emergency services. Move to higher ground if necessary and avoid driving through floodwaters.

How can I protect my property from bushfire?

You can protect your property from bushfire by clearing vegetation around your home, maintaining your gutters, and having a bushfire survival plan.

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