As England continues to experience a period of sustained heat, the latest evidence suggests that spells of extended hot weather are becoming an increasingly important difficulty when trying to be active.
Following the June heatwave, our Activity Check-in has shown that 71% of adults said they had experienced extreme heat during the previous 12 months.
Among those who had to endure extreme heat, 73% said they had done less sport and physical activity as a result.
Our study also says that the proportion saying the weather in the previous seven days was not suitable for being active increased almost fivefold, from 5% in August 2025 to 24.5% in June 2026.
Cost, time and confidence have long been recognised as obstacles to being active. These findings suggest that prolonged periods of hot weather are becoming another.
Not that hot weather is anything new. But the frequency of occurrence and the new highs reached are challenging resilience, and can turn opportunities for taking part in sport and physical activity from merely uncomfortable to unattainable for many individuals and communities.
Extreme weather is often framed in long-term and global terms, but it is undoubtedly already shaping when and how people take part in sport and physical activity today.
A hotter climate is already here
The past two years have shown how quickly weather patterns are changing.
June 2025 was England's warmest June on record, with two heatwaves during the month and temperatures across parts of eastern and south-eastern England around 3°C above the long-term average.
That record was surpassed in just one year as June 2026 then became England's new warmest June on record with a mean temperature of 17.1°C and temperatures reaching 37.7°C during the heatwave towards the end of the month.
For the sport and physical activity sector this is no longer simply an environmental challenge. Heat is becoming a participation issue.
Previous research has already shown that climate change risks widening existing inequalities in sport and physical activity.
These latest findings build on that picture, suggesting that prolonged periods of hot weather are already affecting people's ability and willingness to be active.
What did we find?
We compared findings from two Activity Check-in surveys: one from August 2025, shortly after the June 2025 heatwaves; and one from June 2026, carried out immediately following that month's heatwave.
The proportion reporting exposure to extreme heat during the previous 12 months almost doubled, increasing from 37% in August 2025 to 71% in June 2026.
Among those who had experienced heatwaves, 73.2% said they had done less sport and physical activity because of them, compared with 63.1% in August 2025.
When asked about barriers to activity, there was also a marked increase in the number saying the weather was not suitable for being active during the previous seven days.
While both surveys followed record-breaking periods of hot weather, the latest findings suggest the June 2026 heatwave had an even greater impact on participation.
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