East Africa is divided into six unique climatic regions – hot and humid e.g. Dar es Salaam, hot-arid e.g. Garissa, hot semi-arid / savannah e.g. Dodoma, great lakes e.g. Kampala, upland e.g. Kigali and high upland e.g. Eldoret - each requiring different design strategies to minimise energy consumption and maximise indoor thermal comfort. This report presents climatic data of different regions in East Africa that was compiled within the project Promoting Energy Efficiency in Buildings in East Africa.