Traditional weather and climate forecasting is used by many indigenous communities worldwide as a guide in making important decisions that enable them cope and adapt to climate change-induced extreme weather variation. In many pastoral communities in Africa, traditional weather and climate forecasting remains the most accessible and affordable source of weather and climate information. In this study, we used individual interviews and focused group discussions to systematically document indigenous weather and climate forecasting knowledge among Afar pastoralists, with the aim of making such information available, and enhance use of this knowledge in climate change adaptation and explore synergies with modern weather forecasting system. The Afar pastoralists traditionally predict weather and climate variation through the observation of diverse bio-physical entities including livestock, insects, birds, trees and wildlife. No single indicator is taken at face value; weather forecasting is undertaken in a dynamic process where information collected from different sources, including weather information from the modern weather forecasting system, is triangulated to make the safest livelihood decisions. Before any forecasting information is used, it is evaluated through three traditional institutions that collect, share and analyse the information. These institutions include (1) the Edo or range scouting where traditional rangeland scouts are sent on a mission to assess weather and other spatially and temporally variable attributes on rangelands;(2) the Dagu, a traditional secured and reputable network, where weather information is shared among users; and (3) the Adda or the traditional Afar governance system, which analyses traditional weather information before community decisions are made. This first-time systematic documentation of indigenous weather and climate forecasting knowledge among the Afar communities demonstrated the dynamic process of indigenous weather and climate knowledge production, analysis and communication. This shows the value of indigenous knowledge in contemporary pastoral communities, while highlighting synergies with the modern weather and climate knowledge system for co-production of knowledge that serves the objectives of local people.

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