He plays consecutive dates all the time. England to Belguim hardly takes any time at all either.Conclusion stays the same: Lewis Capaldi allways inserts a day free if he had to move to another location. So if he plays on the 4th of July in the UK he cannot come the 3th, 4th and 5th of July to RW. I don't see him subbing the thursday 2nd of July. He only plays two days consecutively if he stays in the same location fe O2 London. Even if he has 3 days on the same location he has a day free between the three gigs. See his tourschema (via setlist Lewis Capaldi Past and future shows).
I personally don’t think he will play but if he can do 3 days in a row elsewhere he can get to Werchter if he wants to.
