Installer lm-sensors :

sudo apt install lm-sensors

Afficher les températures :

sensors

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +25.0°C  (high = +84.0°C, crit = +100.0°C)
Core 0:        +23.0°C  (high = +84.0°C, crit = +100.0°C)
Core 1:        +22.0°C  (high = +84.0°C, crit = +100.0°C)
Core 2:        +21.0°C  (high = +84.0°C, crit = +100.0°C)
Core 3:        +21.0°C  (high = +84.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:        +27.8°C  (crit = +119.0°C)
temp2:        +29.8°C  (crit = +119.0°C)

pch_skylake-virtual-0
Adapter: Virtual device
temp1:        +44.5°C 

Explications : What is sensors telling me?