The United Kingdom is grappling with a pronounced increase in extreme weather events, with 2026 marked by multiple heatwaves and widespread wildfires, presenting significant financial and operational challenges, particularly for the insurance industry. Scotland alone experienced several heatwave spells this year, with temperatures reaching 30.1°C in Dumfries and Galloway, meeting the Met Office’s criteria for a heatwave on multiple occasions. Across the wider UK, summer 2026 was provisionally the warmest on record, a phenomenon the Met Office attributes as 130 times more likely due to climate change.
Wildfires have become a notable concern. In 2025, the Scottish Fire and Rescue Service (SFRS) recorded 241 wildfire incidents, with 109 occurring in April. This included the wildfire around Carrbridge and Dava Moor, which burned between 28 June and 2 July 2025, consuming nearly 10,000 hectares of moorland, peatland, and woodland, and was classified as the UK’s first “megafire.”
This year, a major wildfire broke out in the Cairngorms National Park on 15 July 2026, spreading to 25 kilometres wide and burning for 12 days, damaging ancient Caledonian Forest and prompting evacuations in areas such as Glenmore and Nethy Bridge.
Further south, Stourbridge in the West Midlands experienced a significant grassland and woodland fire on 13 August 2026. This incident affected 37 properties, with 19 completely destroyed and 18 damaged, and was deemed accidental, stemming from agricultural machinery use.
For the insurance sector, these events translate into escalating costs. The Association of British Insurers (ABI) reported that UK property insurance payouts reached a record £6.1 billion in 2025.
Weather-related property claims totalled £1.2 billion for the year, representing a 14% increase from 2024. Domestic flood claims rose by 38% to £312 million, with the average homeowner flood claim reaching £30,000, a 60% increase from the previous year.
Storm damage claims also increased by 32% to £244 million. The prolonged hot summer of 2025 contributed to domestic subsidence claims reaching a record £307 million, up 10% year-on-year.
This trend of increasing weather-related losses is influencing policy pricing and poses new challenges for insurers, including disputes over smoke contamination, evacuation costs, and business interruption claims without direct physical damage.
Under-insurance is also a growing issue as reconstruction costs rise. The Scottish Wildlife Trust estimates annual flooding damage in Scotland alone to be approximately £500 million, nearly double the £260 million estimated in 2018.
Regulatory bodies, such as the Prudential Regulation Authority (PRA), are focusing on the systemic risks climate change presents, categorising them as physical, transition, and liability risks.
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The ABI has emphasised the importance of government action in climate resilience, including stronger planning regulations to prevent building in high-risk flood areas and incorporating resilience into home design.
The UK government has committed to investing up to £30 million to enhance the evidence base for climate adaptation. The UK’s market for climate adaptation products and services is projected to be worth between £154 billion and £355 billion from 2026 to 2035.
The increasing frequency and severity of extreme weather events underscore a structural challenge for the insurance industry and policymakers, necessitating rapid adaptation and investment in resilience measures across the country.
