Had to smile ... Get him to your nearest OXFAM shop for a set of cheap more appropriate clothing etc. The first 14 days of Feb are usually the coldest wettest days of the year as the NW winds come screaming in from Iceland or the North Easterlies slamming down from Norway .
If you are lucky you might find a local caught fresh fish restaurants near you , I've had several variations of fish cooked Welsh ways . There was a good one in Carmarthen but the decor was very much like a cattle market cafe on market day .
There are several Welsh whiskies that will easily challenge a heck of a lot of Scottish stuff, but I've not found any Welsh wines other than things like :- raspberry wine , sloe gin & elderflower wine which are usually sold ar agricultural shows sort of outlets.
Setting up costs , customs & revenue registration and bondage facility cost make it prohibitively expensive to set up a winery .
To morrow I'll pop into the local off licence wine shop , he has a good range of wines direct from the cave / vineyard rather than out the chemical factory conglomerations that fill the super market shelves .
See if this list of 12 Welsh traditionals helps
https://www.dailypost.co.uk/whats-on/12-traditional-welsh-foods-you-12689302 Found this list of 15 Welsh vineyards .. one close to you .
www.walesonline.co.uk/lifestyle/food-drink/15-welsh-vineyards-you-probably-7993053