Iknow this sounds weird but i watched recently an episode of the bill called tourist trap, and it appeared to be a warm summers day, but there was a n actress called Sadie Shimmin,who wore a raincoat despite the warmth, does she feel the cold, how warm was it when this episode was filmed?
Funnily enough I watched Antiques Roadshow tonight which must have been filmed in the summer and was struck by how differently people were dressed. Some had sleeveless tops on and others wore jumpers and/or jackets!