Rukira Wetmill is situated between River Mumwe and River Thuti in Nyeri county. Nyeri has cool temperatures and fertile central highlands, lying between the Eastern base of the Aberdare (Nyandarua) Range, which forms part of the Eastern end of the Great Rift Valley, and the Western slopes of Mt. Kenya. Nyeri town (county headquarters) acts as a destination for those visiting Aberdare National Park and Mt. Kenya.
The combination of fertile soil, seasonal rainfall and high altitude provide the ideal climate for coffees characterised by high acidity, full body and ripe fruit flavours. Due to the cool temperatures at altitude, particularly at night time, coffees from Nyeri tend develop and mature slowly producing very dense, hard beans high in acidity and complexity.