A large number of studies have reported that autistic individuals show differences in their performance on temporal asynchrony tasks as compared to neurotypical individuals. Specifically, autistic individuals appear to show a reduced tendency towards synchrony. However, the evidence has hitherto not been reviewed in a systematic way, making it difficult to be sure of the magnitude and generalisability of the difference across different tasks and contexts. The present review aimed to systematically collect and synthesise the data on various types of temporal synchrony in autism across all ages in order to address this gap. A systematic search of the EBSCO, OVID, Web of Science, and Scopus databases was conducted, and the search strategies involved keywords and synonyms for “autism”, “temporal” and “synchrony”. Thirty-two studies were identified that met our inclusion criteria: 13 in the domain of audio-visual; three in audio-motor; three in visuo-tactile; three in visuo-motor; three in social motor; and five in conversational synchrony. An additional two studies focused on adapting an intervention method to improve interpersonal temporal synchrony in autistic individuals. The findings suggest that autistic participants showed reduced synchrony tendencies in every category of temporal synchrony that was reviewed. The findings are discussed in relation to existing knowledge of temporal processing and integration differences in autism. Limitations, future directions and potential clinical implications are also discussed.