The south Levantine mid-Middle Palaeolithic (mid-MP
~130-80 thousand years ago (ka)) is remarkable for its exceptional evidence of human morphological variability, with contemporaneous fossils of Homo sapiens and Neanderthal-like hominins. Yet, it remains unclear whether these hominins adhered to discrete behavioural sets or whether regional-scale intergroup interactions could have homogenized mid-MP behaviour. Here we report on our discoveries at Tinshemet Cave, Israel. The site yielded articulated Homo remains in association with rich assemblages of ochre, fauna and stone tools dated to ~100 ka. Viewed from the perspective of other key regional sites of this period, our findings indicate consolidation of a uniform behavioural set in the Levantine mid-MP, consisting of similar lithic technology, an increased reliance on large-game hunting and a range of socially elaborated behaviours, comprising intentional human burial and the use of ochre in burial contexts. We suggest that the development of this behavioural uniformity is due to intensified inter-population interactions and admixture between Homo groups ~130-80 ka.