Full Breakdown
Heatwave-Driven Surge in UK Potholes
By Drooid · · How we work
Background & Context
2026 was provisionally declared the hottest summer on record in the United Kingdom, with five heatwaves and a peak temperature of 38.1 °C recorded at Kew Gardens in south-west London. Motoring experts explain that intense ultraviolet radiation and prolonged heat accelerate the oxidation of the bitumen that binds asphalt, making road surfaces brittle. When cracks develop, traffic loads and subsequent rainfall can quickly expand them into potholes. The phenomenon follows a particularly wet winter, which together with the summer heat has amplified road deterioration.
Data & Statistics
- The RAC’s 2026 Report on Motoring found that 51 % of drivers consider the condition of UK roads their biggest motoring concern.
- 83 % of motorists report encountering potholes on most journeys, and 54 % say they see potholes on every trip.
- The RAC estimates that repairing damage from a single pothole can cost a driver up to £500.
- Council highway budgets in England have been raised to a record £1.6 billion for the 2025-26 financial year, and the November budget earmarked £7.3 billion for road-improvement works through the end of the decade, enabling long-term maintenance plans.
Official Statements & Responses
Simon Williams, head of policy at the RAC, warned that while potholes are traditionally linked to cold or wet winters, extended periods of hot, sunny weather also take a toll on road surfaces. He linked drivers’ frustration to both historic under-investment by local authorities and the recent weather extremes. The Department for Transport introduced new reporting requirements for English councils in June, obliging them to demonstrate active pothole repairs and road-resilience measures; councils that fail to comply risk losing up to a third of their road-maintenance funding. Mike Hansford, chief executive of the Road Surface Treatments Association, stressed that the combination of summer UV exposure and wetter winters accelerates deterioration, underscoring the need for early-life, preventative treatments to make roads more resilient.
Verbatim Quotes
- “Potholes are often associated with cold or wet winters, but prolonged periods of hot, sunny weather also takes its toll on the roads.” — Simon Williams
- “Drivers’ strong feelings about the poor quality of the UK’s roads are a reflection both of a long-term lack of investment in road maintenance and repair by local authorities, and of the road surface issues exacerbated by a particularly wet winter, and now an extremely hot summer.” — Fortunately
- “Council highway budgets in England have been increased to a record £1.6 billion for 2025-26 and in November’s budget, £7.3 billion was allocated for road improvement works between now and the end of the decade which will allow councils to make long-term maintenance plans.” — Mike Hansford, chief executive of the Road Surface Treatments Association
- “Extremes in the UK’s weather, including increased summer UV radiation, combined with colder, wetter winter conditions, can accelerate deterioration.” — Mike Hansford, chief executive of the Road Surface Treatments Association