📮 Clarendon postcode: 5157

Storm Risk in Clarendon, SA: 2026 Assessment

Clarendon, South Australia· Onkaparinga· 5157
Moderate storm risk — occasional severe thunderstormsUpdated 15 Mar 2026

Storm Risk Score

2.4/10

Moderate storm risk — occasional severe thunderstorms

Key Facts

Storm Risk
Moderate storm risk — occasional severe thunderstorms
Trend
stable
Suburb
Clarendon, SA
Overall Risk
Medium
Postcode
5157
Highest high-risk exposure
17.1% of land (bushfire)

Storm Risk Analysis

Clarendon, South Australia, has a moderate storm risk profile. This includes exposure to severe thunderstorms, hail, damaging winds, and — in tropical regions — cyclone impacts. The applicable wind region classification under AS/NZS 1170.2 influences building design standards for Clarendon.

Severe thunderstorms affecting Clarendon can produce damaging wind gusts, large hail, and intense rainfall. The Bureau of Meteorology issues severe weather warnings for South Australia, and historical storm data helps characterise the frequency and intensity of events in the region.

CSIRO research indicates that the intensity of severe convective storms — including those producing hail and damaging winds — may increase in a warming climate. For Clarendon property owners, this reinforces the value of storm-resistant building features and comprehensive insurance.

ClimateNest provides address-level storm risk reports for Clarendon including wind zone classification, hail risk probability, and property-specific mitigation recommendations based on your building characteristics.

Clarendon sits within ClimateNest's suburb-level hazard model for severe storm risk. 0% of the suburb's land area is mapped in high-risk severe storm zones and 86.6% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Clarendon.

Clarendon (postcode 5157) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (17.1% of land in high-risk zones), surface flood (5.3% of land in high-risk zones), riverine flood (3.7% of land in high-risk zones). Exposure is not uniform across Clarendon — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Local Hazard Evidence

Wind/Storm RegionNot applicable due to inland location.
Storm Risk LevelNot applicable due to inland location.
Distance to Coast25 km

Adaptation & Mitigation Actions

Develop a community bushfire plan

Immediate

Create a plan that outlines evacuation routes, communication strategies, and property protection measures.

Est. cost: Low

Improve flood management infrastructure

Near-term

Upgrade drainage systems and construct flood barriers to protect properties near the Onkaparinga River.

Est. cost: Medium

Implement a heatwave response plan

Immediate

Establish cooling centers and provide support to vulnerable residents during heatwave events.

Est. cost: Low

Promote water conservation

Long-term

Encourage residents to reduce water consumption and implement water-efficient landscaping practices.

Est. cost: Low

Support local farmers in adopting climate-resilient agricultural practices

Near-term

Provide resources and training to help farmers adapt to changing weather patterns and reduce their environmental impact.

Est. cost: Medium

Council & Emergency Services

Onkaparinga City Council
Emergency Services

Data last updated: 15 March 2026

Explore Clarendon Risk Reports

Frequently Asked Questions

Is Clarendon prone to hailstorms?

Hail risk in Clarendon depends on the frequency of severe thunderstorm activity in the South Australia region. BOM tracks severe storm events including hail. Property-specific risk depends on roof design, building orientation, and local storm patterns.

What wind rating applies to buildings in Clarendon?

Under AS/NZS 1170.2, properties in Clarendon are assigned a wind region classification. This rating determines structural design requirements for new buildings. Check with ClimateNest or a structural engineer for your property's classification.

Does storm risk affect insurance premiums in Clarendon?

Yes, storm damage — including wind, hail, and rain ingress — is one of the most common insurance claims in Australia. Properties in higher wind zones or with greater hail exposure may face higher premiums or specific policy conditions.

What storm mitigation measures should Clarendon property owners consider?

Storm mitigation includes impact-resistant roofing, cyclone-rated fixings where required, window and door shutters, regular roof and gutter maintenance, securing outdoor items, and ensuring compliance with current wind load standards under the National Construction Code.

What share of Clarendon is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 17.1% of Clarendon in high-risk zones for bushfire, with a further 68.7% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.

Is Clarendon Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Clarendon, South Australia, covering flood, bushfire, sea level rise and more.

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