Many UK holidaymakers head to southern Europe looking for some guaranteed hot and sunny weather.
Whilst there may be a swimming pool or sea to cool down in, when does it become too hot to be enjoyable?
According to research as part of a BBC InDepth article, this is a question many more of us are starting to think about with climate change.
This latest heatwave and spate of wildfires may be worrying news for those of you heading to southern Europe in the coming days and weeks over the summer.
However, over the next week at least, the weather does look like it will cool down, or become less hot.
In Athens and Kos, temperatures of 41C over the weekend will come down to the mid thirties Celsius by Tuesday or Wednesday.
And in Cyprus, many locations will be close to the seasonal average of 31-35C.
If it’s southern Germany, Italy or the Balkans such as Croatia, Bosnia & Herzegovina you might be heading to, then temperatures in the high thirties Celsius will actually come down to the low twenties, a good 5-10C below average.