Planning summer holidays in Europe is beginning to involve more focus on avoiding high temperatures.

Destinations including the Greek islands and southern Italy have traditionally relied on warm, stable summers to attract tourists. But they have faced extreme temperatures causing mass evacuations, wildfires and putting lives in danger in recent summers.

Even without those conditions, high temperatures are changing the summer holiday experience. Tourists are often more exposed to heat risk than residents. They spend longer periods outdoors, take part in outdoor sports, and navigate unfamiliar environments without knowing where to find shade, or local healthcare. Yet despite this heightened exposure, tourists’ vulnerability to extreme heat remains relatively underexamined.

Recent summers have made these risks visible. During 2024, parts of southern Europe, including Greece, Italy, Spain and Cyprus, experienced temperatures exceeding 40°C. During Greece’s record-setting heatwave, several foreign visitors died or went missing including the British broadcaster Michael Mosley. Mosley went missing on the Greek island of Symi and a coroner found the cause of death could have been heatstroke. In response to these very high temperatures, countries including the UK, Germany, and Sweden issued travel advisories warning of extreme heat in popular destinations.

Heat is not just a safety issue; it is also reshaping........

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