Portugal’s national health service experienced a significant increase in demand for emergency care in June, coinciding with a heatwave. The SNS24 helpline received 110,000 more calls this June compared to the same month last year, indicating a substantial rise in health-related concerns. This surge likely strained resources across the emergency medical system, including the INEM (National Institute of Emergency Medical Services) and hospital emergency departments. Authorities have not yet specified the nature of the increased calls, but the timing suggests heat-related illnesses were a contributing factor. The increased demand highlights the vulnerability of the healthcare system during extreme weather events. Further analysis is needed to determine the full impact on service delivery and patient outcomes.