This bulletin reviews the climatic conditions observed during the third dekad (21-31) of January 2018, and highlights the climate forecast for the second dekad (11-20) of February 2018 and the associated climate impacts over the Greater Horn of Africa (GHA). The observed and forecasted conditions are compared to the average of the climatological period of 1981-2010 and 2008-2017 for rainfall and temperature, respectively.