Hi @Phil19 if Liverpool is like Manchester it does get a bit quieter in the summer.
Less people staying for sports (ie lack of footie games)
Less conferences,
less pop concerts,
Students (and international students especially, tend to dissapear to other countries) less weekends away at home.
Loads of festival's in countyside, people go to rather than city for weekend
It does pick up here for graduations for a few weeks, and you get a fair few non-uk people who come for their own summer trips. But otherwise its a bit more relaxed here untill september...
Not the same cities but fairly similar maybe?
I used to work in city centre hotels for years as well where it was normal for the summer months, plus Jan to be the quiet months.