The end of June in London was incredibly hot. For the week I was there the sky was blue most of the time. No clouds in sight and very low humidity. Every morning I walked through Brockwell Park to get to Herne Hill railway station and catch the train to Blackfriars Bridge. I was walking through early, at around 7 or 7:30. The colours were crisp. The greens very green. The blue of the sky very blue. Very nice.