Between in elevation mean temperatures are about with cold nights, while at Omate, mean temperatures reach with little seasonal variation. Precipitation averages , falling mainly during a summer wet season between December and March. This results in an arid climate, where little erosion occurs and volcanic products are well preserved. Vegetation in the area of Huaynaputina is scarce, and on the pumice deposits from the 1600 eruption it only occurs during the wet season. Cacti can be found on rocky outcrops and valley bottoms.