At the summit of the mountain it could get to sub zero temperatures ranging from -7°up to -29°c
But if you mean Kilimanjaro as an area, it may reach temperatures of 21°C to 33°C on any given weekday…
On chilly days, temperatures in regions like Tarakea, Kibosho Machame, and Marangu can reach 15°c -21°c…
The area around Moshi town and Uru, Old Moshi, Kibosho road area, and Hai town (Bomangombe) is a little warmer during the day and comparably not that chilly at night… Temperatures range from 21°C to 33°C.
On the Leeward side of the mountain, it’s the same… It doesn’t get much rain, and the land is a little dry…with temperatures ranging from 15°C at night to 33°C on a perfect day…
You may still rely on Tanzania’s Metreological Service local forecast for accuracy.