This bulletin reviews the March 2019 climate conditions over the Greater Horn of Africa (GHA) region and highlights the May 2019 rainfall and temperature forecasts together with the socio-economic impacts associated with both the observed and the forecasted climate conditions. There are six sections in this bulletin. The major highlights from both the observed and expected climate conditions are outlined in Section 2. Section 3 discusses the climate patterns that prevailed in the month of March 2019, while the dominant weather systems are discussed in Section 4. In Section 5, the May 2019 climate forecasts over the GHA are presented. The socio-economic impacts associated with the observed climatic conditions and those expected from May 2019 climate forecasts are outlined in Section 6.