Ooh, that's a new one on me. I checked and it's extremely rare - maybe 5 bearers ever. Google says there's an Afon Wyre, so I expect he's probably named after it; it's not uncommon to find people here named after rivers and lakes, although the names themselves are usually rare.
I'd pronounce it more like wə reh, but I expect the continuity announcer was English :) And regional accents vary a lot.
Interestingly, it's also a surname, but probably as a variant of Weir or Wyer, as none of the bearers seem to have been Welsh.
This message was edited 8/8/2014, 1:58 PM