It is a cool growing Vanda.
In winter daytime temp 15-25 C, depends on the sun shining or not. Nights 13-15 C .
In summer the daytime temp can go as high as 44 C! Nights still cool at 15-18 C , so quite a difference between day and night temps.
Yours look so healthy. I think I know what I need to do for mine... some winter protection, but mostly outside. (Winter lows just a little too harsh at my house)
Mine lived totally outside for several years and seemed to do fine. Then it didn't look so great, so I moved it to the GH. It's been "merely OK" (got so-so blooms 2 years in a row) so I think it really does want to grow cooler. So still looking for the "sweet spot". Peter's looks so lush and healthy!