June 2023 marked a sharp divergence in Holyhead’s crime profile, driven by a dramatic surge in vehicle-related offences. The area’s crime rate of 12.4 per 1,000 residents—45.9% above the UK average—reflects a pronounced imbalance in crime types, with violence and sexual offences accounting for 45% of all reported incidents. This is 92% above the UK average for the category, a stark contrast to the 2.9 per 1,000 rate nationally. Anti-social behaviour (20.5%) and criminal damage (12.6%) further amplify the disparity, both exceeding UK rates by 76% and 150% respectively. Seasonal factors likely play a role, as June signals the start of summer tourism on the Isle of Anglesey. However, the local context suggests deeper patterns: violence and anti-social behaviour may be linked to the town’s proximity to a major ferry port, where transient populations and late-night activity could contribute to higher incidents. Meanwhile, property crimes remain relatively low, with shoplifting and vehicle crime showing contrasting trends. While shoplifting fell by 55.6% compared to May, vehicle crime more than doubled, tied to increased car travel during the summer season. These shifts highlight the combination of local geography, tourism rhythms, and policing priorities in a coastal built-up area.