Delta Aquarids meteor shower peaks the same night as Alpha Capricornids. Despite almost full Moon at 74%, it should be a night worth observing.
Observers in the UK should expect relatively small but steady numbers of meteors, just under 20 per hour. Astronomical twilight starts at 22:32, and that's roughly the time Delta Aquarids radiant rises over South East horizon. As it gets darker, 1 hour later, the Moon will rise and worsen the observing conditions.
Delta Aquarids' origins are still unconfirmed, but recently the comet 96P/Machholz has been identified as the likely source of the meteor shower.