It would also depend of course on what the exchange rate is between Sterling and euro, and where you expect that rate to go in the coming months. Personally, I think the whole Brexit forore will have a negative impact on Sterling whatever way the actual vote goes, but what do I know? Sterling has certainly lost a lot of value since last November, when I was changing up a large sum of money from Sterling to euros. If you do convert your money from Sterling to Euro, make sure you use someone like Smart Currency Exchange to do it, you'll get a MUCH better rate than what you'd get in any high street bank on amounts over about £2,500 and I personally found them excellent (no I'm not on commission from them!).
Thanks for the tip! I think you may be right about the negative impact of Brexit on sterling but like you, I am not sure about these things.