500N
I think there was a line marked on the floor about a yard (maybe less) from the bar edge to discourage loiterers (this was a long time ago). I certainly remember much more monsoon type rain in Singapore, Darwin was dry and sunny, and I was only 24, so didn't feel pain or discomfort...
I also recall the Gp Capt's welcoming chat..."don't get suckered in by the clouds, you'll still burn" and "keep away from the smoke from bush fires, it's full of insects riding the thermals - no danger from the bugs, but the birds that eat the bugs are pretty big" (think his name was Henderson).
Don't worry, he'll be back - to pay off his debt
Mister B