Virus lives in droplets we breathe out. In theory those droplets will evaporate faster in warm weather and I dont know how long the virus can live withouts its moisture protection - I know it dies faster on porous surfaces for this reason and heat should help speed up the process.
I think Australia will come into its epidemic peak in May/June unfortunately. Will be interesting to see north queensland/Broome stats vs Vic/Tas
Florida vs NY in the US incoming weeks will be interesting. Lots of retireees in Florida but warmer than NY