The present invention relates to an electronic system for monitoring (100) the welfare of a farm animal (A) such as for example a bovine, said system (100) comprising: a) a portable measurement module (10) positioned on said animal (A) and comprising: - a temperature probe (11) configured to measure a temperature of the ambient air on said animal (A), denoted Tvac_m, and - a humidity sensor (12) configured for measuring a humidity of the ambient air on said animal (A), noted HRvac_m; and b) a central unit (20) remote from the animal (A) and comprising: - a generation circuit (22) configured to collect information relating to the temperature and humidity measured on said animal (A) and for generate according to said collected information at least one temperature data (DT) containing information relating to the measured temperature Tvac_m and at least one humidity data (DH) containing information relating to the measured humidity HRvac_m; - a processing circuit (23) of said temperature (DT) and humidity (DH) data to calculate, a relative humidity RH actually felt by said animal; and - a processor (24) configured to determine a comfort parameter associated with the well-being of said animal (A) as a function of the relative humidity RH actually felt calculated in order to assess the well-being and / or comfort of said animal La présente invention concerne un système électronique de surveillance (100) du bien-être d'un animal d'élevage (A) tel que par exemple un bovin, ledit système (100) comprenant : a) un module de mesure (10) portatif positionné sur ledit animal (A) et comprenant : - une sonde de température (11) configurée pour mesurer une température de l'air ambiant sur ledit animal (A), notée Tvac_m, et - un capteur d'humidité (12) configuré pour mesurer une humidité de l'air ambiant sur ledit animal (A), notée HRvac_m ; et b) une unité centrale (20) déportée de l'animal (A) et comprenant : - un circuit de génération (22) configurée pour collecter les inform