The World Meteorological Organization (WMO) is seeking a web development and design agency to host, maintain, secure and further develop the two public websites of the WHO-WMO Climate and Health Joint Programme: ClimaHealth (climahealth.info) and the Global Heat Health Information Network – GHHIN (heathealth.info). Both sites are built on WordPress. The selected agency will keep the two websites running smoothly, secure and up to date, improve their speed, accessibility and user experience, and carry out a programme of planned upgrades and new features. Ongoing flexible support for additional development needs is also included.