£1093 per month is sufficient if you live in a shared house; and split utility bills. But remember to bring more money when you first arrive, in case you need to put deposit for your accomodation or buy stuff. The first month is always hardest, I guess. For example, you might want to buy your own pots and pans, and your own duvet. These things may not be very expensive, but still, they add up to a lot.