In the context of global climate change and increasing impact of some types of natural disasters, there has been significant interest in investigating the influence of climatic factors on human migration. We explore a more comprehensive set of climatic factors than used in most previous work to predict the effects of sudden natural disasters and climatic variations on migration. By following province-to-province movement of more than 7,000 households in Indonesia over a decade and a half, this study reveals that an increase in temperature (e.g., due to natural variations or global warming) and, to a lesser extent, variations in rainfall are likely to have a greater effect on permanent outmigration of households than natural disasters.