Keeping iPhone, iPad, and iPod touch within acceptable operating temperatures. Learn about the operating temperatures and temperature management of iPhone, iPad, and iPod touch (4th generation and later). Use iOS devices where the ambient temperature is between 0º and 35º C (32º to 95º F). Low- or high-temperature conditions might cause the device to change its behavior to regulate its temperature. Using an iOS device in very cold conditions outside of its operating range might temporarily shorten battery life and could cause the device to turn off.