When I lived in a top floor apartment in Melbourne, where it regularly hit 40°C without any air-conditioning (still unsure how that was and is legal to rent out), I would use a spray bottle of water and a fan to evaporatively cool myself, cold showers to lower my body heat and trips to an air-conditioned space like the cinema or shopping centre during the worst of it.
He was voted on by 14.5 million votes, which was 56% of the votes, but it is also out of a population of 45 million, and he only got 30% in the first round of votes. They have a completely different voting system to the US, so they had a second round of runoffs.
The point is, no most people in Argentina did not vote for him, but many did not vote at all.