I've read the comment session and is quite concerned about the heat. It would be great if you could let me know:
(1) whether London is hot in June?
(2) whether Barmy Badger's rooms are equipped with air-con or/and fans?
(3) whether guests can pick their rooms when they make their bookings, and if so, any tips as to how to pick a room that is cool (as in not too hot)?
Note: living in place so hot that air-con is a daily necessity, planning a trip to London in June, thinking about booking for a twin room
Honestly, weather has become so unpredictable that even the forecasts aren't 100% sure anymore. Last year I was in London in June and in a week it went from Sunny to rainy everyday. It's part of the charm.
As far as the hostel goes, there's conditioning in every room if I remember rightly, but if you need anything more specific, I'd suggest getting in touch directly with them, The stuff is super frindly and ready to help. Just send them an email and they'll help with all your concerns.
Get an answer from Barmy Badger Backpackers staff and past guests.