Climate Risk Profile: Gumma, NSW

Gumma, New South Wales
Medium Risk
Updated May 2026

Gumma faces increasing risks from flooding and heatwaves due to climate change. Bushfire risk is moderate and also projected to increase. Coastal risks are minimal due to its inland location.

Overall Risk Score

58/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
4.2
Heat
7.0
Coastal
1.5

Climate Hazard Breakdown for Gumma

increasing

Flood

65/100

Gumma faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Key drivers:

  • ·Increased rainfall intensity
  • ·Climate change
increasing

Bushfire

42/100

The bushfire risk in Gumma is moderate, with surrounding bushland posing a threat during dry periods and high winds. Grassfires can also be a concern.

Key drivers:

  • ·Drier conditions
  • ·Increased fuel load
increasing

Heat

70/100

Gumma is likely to experience more frequent and intense heatwaves, posing a risk to vulnerable populations. Higher average temperatures will increase heat stress.

Key drivers:

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

Coastal

15/100

Coastal risk is low due to Gumma's inland location. Sea level rise and coastal erosion are not significant threats.

Key drivers:

  • ·Distance from coast
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 Gumma

Detailed Hazard Analysis

heat Risk

70/100

Gumma is likely to experience more frequent and intense heatwaves, posing a risk to vulnerable populations. Higher average temperatures will increase heat stress.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

flood Risk

65/100

Gumma faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Climate change
  • ·Inadequate drainage infrastructure

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

15/100

Coastal risk is low due to Gumma's inland location. Sea level rise and coastal erosion are not significant threats.

Primary Drivers

  • ·Distance from coast

Projections (RCP8.5)

2030

1.5

2050

1.5

Data source

bushfire Risk

42/100

The bushfire risk in Gumma is moderate, with surrounding bushland posing a threat during dry periods and high winds. Grassfires can also be a concern.

Primary Drivers

  • ·Drier conditions
  • ·Increased fuel load
  • ·Higher temperatures

Projections (RCP8.5)

2030

4.7

2050

5.2

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to flood and bushfire risks.

Price Impact

Properties in flood-prone areas may experience a decrease in value.

Buyer Checklist

  • 1.Check flood maps and historical flood data.
  • 2.Assess bushfire risk and ensure property is adequately protected.
  • 3.Consider the potential impact of heatwaves on property value and livability.
  • 4.Review insurance options and potential premium increases.

Local Climate Evidence

Flood Evidence

Nearest Waterway
Nambucca River
Elevation Range
10-30 meters
Flood Zone
Areas near the Nambucca River are prone to flooding.

Historical flood data indicates that Gumma has experienced several moderate to major flood events in the past.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to state forests
Planning Overlay
https://www.rfs.nsw.gov.au/plan-and-prepare/bush-fire-prone-land
Bushfire Prone Area
Yes

The area is designated as bushfire prone, requiring specific building standards for new constructions.

Heat Evidence

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

The number of days exceeding 35°C is projected to increase significantly by 2050.

Coastal Evidence

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

Historical Climate Events

2013
floodModerate

The Nambucca River experienced moderate flooding, impacting low-lying areas in and around Gumma.

Source
2019
bushfireModerate

Bushfires in the Nambucca Valley region caused significant smoke haze and required local evacuations.

Source
2017
heatwaveModerate

A prolonged heatwave in January resulted in increased hospital admissions and strain on local resources.

Source
2022
floodMajor

Significant flooding event impacted the region, causing road closures and property damage.

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)
bushfire424.5(+0.3)4.7(+0.5)
heat707.7(+0.7)8.5(+1.5)
coastal151.51.5

By 2030, Gumma is projected to experience a notable increase in flood and heatwave risks. Bushfire risk will also increase slightly. Coastal risks remain low.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Invest in improved drainage infrastructure and flood levees to protect properties from flooding.

Est. cost: High

Learn more

Implement Heat Action Plan

Immediate

Develop and implement a heat action plan to protect vulnerable populations during heatwaves.

Est. cost: Medium

Learn more

Bushfire Preparedness Programs

Near-term

Enhance community bushfire preparedness programs and provide support for property owners to reduce fuel loads.

Est. cost: Medium

Learn more

Upgrade Infrastructure

Long-term

Upgrade critical infrastructure to withstand the impacts of climate change, including roads, bridges, and power grids.

Est. cost: Very High

Learn more

About Gumma's Climate Risk Profile

Gumma, NSW, is a rural locality that is increasingly vulnerable to the impacts of climate change. The primary concerns for Gumma are flooding and heatwaves, with bushfire risk also being a factor.

Flooding is a significant concern due to the potential for intense rainfall events and the proximity of waterways. Climate change is expected to increase the frequency and intensity of these events, placing greater strain on local infrastructure and emergency services. Residents should be aware of flood risks and take appropriate precautions.

Heatwaves are also projected to become more frequent and severe, posing a health risk to vulnerable populations, particularly the elderly and those with pre-existing medical conditions. It is important to stay hydrated, seek shelter in cool environments, and check on neighbors during periods of extreme heat.

Bushfire risk is moderate, with surrounding bushland posing a threat during dry periods and high winds. Residents should maintain their properties to reduce fuel loads and be prepared to evacuate if necessary.

While coastal risks are low due to Gumma's inland location, the community should still be aware of the broader impacts of climate change and support efforts to reduce greenhouse gas emissions.

Data sources: BOM · CSIRO · NSW RFS · Nambucca Valley Council

Local Government Resources

Frequently Asked Questions

What are the main climate change risks for Gumma?

The main climate change risks for Gumma are increased flooding, more frequent and intense heatwaves, and a moderate risk of bushfires.

How will climate change affect property values in Gumma?

Properties in flood-prone areas may experience a decrease in value. Increased heatwave frequency could also impact property values.

What can I do to prepare for increased flooding in Gumma?

Check flood maps, ensure your property is adequately insured, and consider investing in flood mitigation measures.

How can I protect myself during a heatwave in Gumma?

Stay hydrated, seek shelter in cool environments, and check on vulnerable neighbors.

Where can I find more information about bushfire preparedness in Gumma?

Visit the NSW Rural Fire Service website for information on bushfire preparedness and property protection.

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 Gumma, use our analysis tool.

Check Your flood Risk Now

Check Gumma's specific flood risk and see how it compares to nearby suburbs. Enter your address for an instant risk assessment.

Free instant previewCSIRO-powered data

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