This paper explores the rhythm of temporary mobility experiences of young Eastern Europeans in Spain, after the European Union (EU) enlargement towards the East. Following Lefebvre's rhythmanalysis approach, and drawing on 60 in‐depth qualitative interviews, this paper investigates how rhythms are linked to youth mobility and how different interplays of rhythms are connected and disconnected in multiple ways. I argue that both the EU socio‐economic context and the personal and professional life‐course circumstances of young Eastern Europeans who practice mobility create different, uneven rhythms that influence their everyday lives and their perceptions of mobility. This paper highlights the issue of rhythmic change in temporary mobility, uncovering ‘arrhythmic’ mobility, reflected in the loss and insecurity in the lives of those who practice it; ‘polyrhythmic’ mobility, practised by people looking to study and/or work and expressed through uncertainty on the one hand and the possibility of establishing a certain rhythm in their lives on the other; and ‘eurhythmic’ mobility, used by those with a stable professional status in one of the EU countries, in this case, Spain. The conclusions provide a better comprehension of Lefebvre's thinking, offering insights for wider applications. They show the need to advance the theoretical and empirical understandings of rhythm in relation to mobility during the lifecourse.