> Vietnam’s record was measured indoors at Hoi Xuan station In 2018 I built an extension to our home in the west of Sweden. It was a warm summer with temperatu

> Vietnam’s record was measured indoors at Hoi Xuan station In 2018 I built an extension to our home in the west of Sweden. It was a warm summer with temperatures up to 32°C - which is warm for where we live - but that just made for a balmy environment to work in. That was, until I was forced to put a temporary roof (in the form of a 12x10 metre tarpaulin supported on long poles lodged on the corners of the building, spanning over the front half of the building where I was building the extension) over the whole project due to some wandering thunderstorms. The building is about 8 metres high, the tarpaulin was supported about 2 metres above it. When I was working on the new roof I had a look at the thermometer I had placed there as it was clear that this "inside" temperature would be higher than the "outside" one. It was: 44°C. With three sides open to the outside and about 2 metres of height between the roof-under-construction and the tarpaulin the "inside" was about 12°C warmer than the "outside". I took a photo of that thermometer to save this "highest ever temperature of 44°C" for future generations. Maybe I should send that photo to the Guardian to see what they'll make of it?