The strength of the British pound will probably make the biggest difference to foreign visitors, but even then Brighton is, by regional and global standards, fairly expensive.

Although not quite as costly as London, Brighton isn't far off.

The good news is that the city is easy to cover by foot, eliminating local transport costs. On the other hand, Brighton is very much a party town with lots of temptations which may be hard to resist!

Budget

At the budget end (staying in hostels, rarely eating out, walking and visiting mostly free sights), you might be able to get away with about £50/person/day.

Standard

A more average budget for most visitors (staying at standard hotels or B&Bs, eating out once a day, going to the full range of sights and taking public transport), would be around double that, at £100/person/day.

Luxury

Double that again and 200/person/day buys a pretty high-end experience, with smart hotels, meals at the full range of restaurants and taking taxis around town whenever you feel like it.

Note that travelling solo will probably raise any of these per-person-costs by at least a third for all except budget travellers.