bees can make a home in some remarkably exposed locations - Orkney for example - but siting one in the teeth of southerly gales would not be ideal. The hedge will be a help but how dense is it? A deciduous hedge may not provide much winter shelter for several years after planting, if ever. You know your own site best. If in doubt, pick a reasonably fine day, go up there in shirt sleeves and stand on the proposed hive position for half an hour. If you're uncomfortable, the bees will be too. Now try again on a less fine day and see what you think.
If the site you choose does prove unfavourable, it is possible to move the hive, but only by a metre at a time during summer which is a bit of a pain. Easier to do in winter if you need to make a wholesale move. Or move it several miles away and then back again to the new site, but this is A Level stuff.
Bear in mind also that beekeeping does involve hauling around a fair amount of heavy woodwork, hopefully laden with heavy honey! If your hive is located at any distance uphill from your storage point, you will quickly come to regret it. I speak as one who thought that a 200 yard wheelbarrow push across paddocks would be no problem.
Also, make sure you have sufficient, level space for your apiary. You will need to accommodate at least two hives and have space to work round them comfortably.
Glad to see you plan to join your nearest BKA. Members will have a more detailed understanding of local conditions and strains of bees. Drink at the fount of wisdom.
Good luck!