Africa is a vast continent with over 2000 languages spoken. To know how to say "sunset" in a specific African language, you'll need to tell me which language you're interested in.
For example:
* Swahili: "Machweo ya jua"
* Yoruba: "Irorun"
* Zulu: "Ukushona kwelanga"
* Amharic: "ማታ ፀሀይ" (Mata Tsahay)
* Hausa: "Faduwar rana"
Let me know which language you'd like to know, and I can tell you how to say "sunset"!