25c at 4PM sounds about perfect given we are in the middle of July, just by chance, it's almost 4AM now, and it's exactly 25c, 12 hours from now, i would expect at least an extra 10 degrees.
Temperatures were as high as 41°C for Riot Whinstone this week. Lol, I have no idea how they can keep operating even with their evaporative water wall. They probably shut down during peak heat anyway because electricity prices tend to be very expensive (>30¢/kWh)