The temperature reading on my 2019 seems to be about 4C high at the best of times. Looks like your is off by the same amount.Does the temperature gauge show a minus celsius readings?
Winter here in NZ and when riding to work in the morning the radio station are reporting minus temperatures (-3) and yet the gauge is showing 1 celsius.
Yes I'm aware that the sensor could be out (like the speedo).
I'm riding a 2016 DCT and just clocked up 95k.