I had occasion to check how the pound to euro rate has changed since 1st January 2002 when the euro currency, in our pocket, was introduced.
On that day it was 1.60 euros to the pound, a few days later it was at its highest ever at 1.64. It is today 1.09. All blamed on Brexit !
The day before the referendum result it was 1.30. So it it had lost 0.34 by 15th June 2016. So brexit not to blame.
Since Brexit has lost 0.21
In July 2009 the rate was 1.06, to the £, and that was long before any idea of the dreaded B word. It recovered from that, so what says it will not do the same again ?
NB The rates I have quoted are of course the inter-bank rate, not tourists rates.