Not familiar with how quickly and the extent of the measures taken there, but at least Singapore doesn't look too bad considering the density of that city.
My point wasn't that warmer temps would stop the outbreak completely but, possibly in combo with humidity, might limit its extent.
What I was trying to say was that we are still don;t know for sure what effects, if any, local weather may have on the spread of the outbreak. This is something we will be learning about it in the coming months.