You gotta love the cold mate haha, its nice and refreshing ^_^
Well, welcome to London. It has a wicked gay scene, and I might be around to take you to a few bars, maybe clubs on Saturday after rowing (but I'm politically tied on Sunday, unless you wanna come to the RVT then) around London as mates.
If not, then I'm sure you can find out places by yourself:
Black Cap (pub): nearest tube; Camden Town
Trash Palace (bar with dancefloor): nearest tube; Totenham Court road, Leicester Square
Once you get to Soho/Leicester Square, you can basically roam free, the whole place is filled with either, Chinese restaurants/supermarkets, or Gay bars/clubs

Oh, and Vauxhall, in South London is great too. You got clubs like Fire and Crash, saunas (no I haven't been to one lol), bars etc...

Hoped that helped.