Dementia Day programmes are considered important in supporting the well-being of both people living with dementia and their caregivers. There is, however, limited evidence on the effectiveness of these programmes. This article reports on a study undertaken in New Zealand on the effectiveness of community-based dementia day programmes. The small-scale pilot study was aimed at investigating the elements that make up an effective client-focused dementia day programme and the methods employed by organisations to measure the outcomes of these programmes. A mixed methods approach was employed with multiple stakeholders. The research revealed that effective day programmes comprised five core elements, and that surveys, reporting and auditing processes are routinely used to measure the quality of outcomes of day programmes. Although these findings are reflective of a specific context, it raises concerns about the nature and availability of evidence informing decisions regarding the design and implementation of day programmes internationally.