Whoa, Portuguese is messed up

I thought I'd look up how to pronounce Rio de Janeiro since I've been saying it lately when talking about the 2016 Olympics candidate cities. But it turns out that Portuguese pronunciation (at least in Rio itself) is so bizarre that if I said it correctly no one would understand what I was talking about. IPA from Wikipedia: [ˈhiu dʒi ʒʌˈnejɾu] (the footnote has variant Brazilian pronunciations, some of which are closer to the Anglicization). So it's something like "hew ji zhaneru". You can hear it spoken here.