The aim of this review is firstly to assess the impact that FSD and partners have had in catalysing the creation of a commercially viable market for Index Based Weather Insurance (IBWI) in Kenya. Secondly, it will make recommendations about how such a market might be achieved through the existing pilots. We used the approach detailed in “Making [financial] Markets Work for the Poor” (Porteous 2004) which guides FSD’s programme implementation. This approach considers how market systems can be adapted to work for the poor in a sustained manner by examining the broader environment, identifying relevant obstacles and incentives. This review is not intended to be a detailed investigation of how IBWI works or document all that has happened in Kenya. This has been covered in numerous papers and articles by the World Bank, IFAD, ILRI and others.