The contribution summarises the Beja lexicon connected with natural phenomena, including astronomical, temporal, and geographical terminology. Every lexeme is documented in available sources and etymologized in areal or genealogical perspectives. In the case of borrowings, the ambition is to trace primary donor-languages, usually Arabic or Ethio-Semitic, sometimes Nilo-Saharan. The inherited lexemes are identified, if no convincing donors were determined, while there are promising comparanda in other Cushitic, Omotic or other Afroasiatic branches.