June 11, 2026 – WHO updated their guidance document that provides practical recommendations for governments and health systems for development of their heat-health action plans. The guidance supports coordinated planning, early warning systems, and risk communication to protect populations at increased risk, including young children, caregivers, and older adults. It translates accumulated evidence and implementation experience into practical actions, tools, and decision points for coordinated heat–health risk prevention and response. While tailored to the WHO European Region, it is adaptable to other contexts.