Summiting Mount Kilimanjaro on, soon before or soon after a full moon is very beautiful and helps illuminate the landscape without using headlamps. However, it is also very bright for sleeping and stars are not as visible. Hiking around a new moon will illuminate the stars.

To summit on a full moon, you will want to start a 6-day trek 4 days before the full moon (3 days before if doing a 5-day trek).