It is the same every year. We endure what feel like interminable months of grey skies and drizzle and then the moment the sun finally comes out, here it comes: the doom-laden ‘heat health warning’. At the time of writing we are, according to Kent County Council, living under a “yellow level alert” for heat. But let’s use the more old-fashioned terminology and call it “summer”. Because it is “summer” the council has issued a series of what it labels “top tips” for surviving the handful of days each year where on this chilly, rain-lashed island you don’t have to wear a jumper and carry an umbrel…
