According to this it's going to be a lot cooler in Oxfordshire in the second half of this week than it is in London. This is good - the people I know in London are mainly able to spend the day indoors out of the sun, whereas I'll be wandering around a field hippie-herding. Indeed, it looks like there might even be a bit of rain. I don't normally appreciate rain during a festival, but if the alternative is blazing sunshine and temperatures in the high thirties . . . after all, there are a finite number of first-aid staff on site.