Why 30C heatwaves feel hotter in the UK than abroad
Why 30C heatwaves feel hotter in the UK than abroad

Brits are bracing for the hottest day of the year so far, with temperatures expected to reach 34C during the first heatwave of 2026. Forecasters warn the hot spell could break records for the hottest May day and warmest bank holiday ever recorded, with health alerts issued across England.

While many people in the UK struggle in 30C heat, the same temperatures often feel far more bearable in popular European holiday destinations like Spain, Portugal and Italy. Experts say there are several reasons for this, including humidity levels, lack of air conditioning and building design.

Annie Shuttleworth, a Met Office meteorologist, told Stylist: 'It is perhaps how heatwaves in the UK are perceived that makes them less manageable. When we experience heat abroad, we're usually on holiday, and may be close to a pool or the beach. In general, buildings and infrastructure are also more set up for heat abroad - for example, there is more air conditioning.'

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According to some experts, one of the biggest factors is humidity. A Met Office spokesperson said: 'The level of humidity can be higher in the UK than in continental Europe. If humidity is high, it is harder for the human body to keep cool as your sweat doesn't evaporate as quickly.'

The body naturally cools itself through sweating, but humid conditions make this process less effective. Dr Matthew Patterson, a meteorologist, told BBC Science Focus: 'Sweating cools you down because when the water evaporates it transfers energy away from your body. However, sweating is less effective if there is already a lot of moisture in the air.'

Another reason the heat feels more intense in Britain is because homes and infrastructure are built to keep heat in during winter, rather than letting it escape in summer. Unlike many countries in southern Europe, air conditioning remains uncommon in UK homes, offices and public transport.

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