If you class low 30s as warm (hell, most of you do). And I've never once advocated cold weather in the Summer. I'd take 20-22 (which is above average for us) with no problem. Sadly though, we clearly cannot have pleasant weather in the UK. As soon as HP shows itself, we get outputs like this; humid and uncomfortable with the lovely 18-21c nights that go with it. Bit ironic coming from someone that doesn't like oppressive temperatures like you.