Living in Germany (so under normal circumstances not a very hot climate) i shower once a day except when going to the gym, doing hard manual labour and so on.
The interesting thing is: When i was a kid and young adult (so in the dark ages of the 80s to late 90s) i only showered once every 2 - 4 days and never smelled bad...
In my last job we had a Hells Angels Supporter Clubhouse on our complex... well, we never had any problems with them, and our encounters mostly comprised of a "good morning" or something like that. Sometimes they held barbecues where i attended and, what can i say, just a bunch of more or less nice motorcycle riding greybeards.