Not sure what normal ATF (transmission) oil operating temperature is.
I do see that the temperature rises slowly and keeps on rising during a trip. Is that normal or should it warm up quickly and stay around a certain temperature?
See example photo with captured data. Took around 30 minutes to reach 50 degrees Celsius from Cold engine. Then it went stable around that 50 degrees Celsius until leaving the highway.
Then it keeps on rising further during city traffic.

 

Yes, normal operating temperature is around 50-60 degrees celcius.

 

But is it normal that it takes 30 mins to reach that?
Aso in summer it can rise to 80-90 degrees celsius in city traffic. That is also normal?