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. Battery life will return to normal when you bring the device
back to higher ambient temperatures. Store the device where the
temperature is between -20º and 45º C (-4º to 113º F). Don’t leave the
device in your car, because temperatures in parked cars can exceed
Your device might get warm
When you use the device or charge the battery, the device might get
warm. You might notice that your device feels warmer in these
- When you set up your device the first time
- When you restore from a backup
- When apps reindex or reanalyze data, like Photos tagging for faces, places, or keywords after a software update
These conditions are normal, and your device will return to a regular
temperature when complete.
Here are some of the higher ambient-temperature conditions and
activities that might cause the device to change performance and
- Leaving the device in a car on a hot day.
- Leaving the device in direct sunlight for an extended period of time.
- Using certain features in hot conditions or direct sunlight for an extended period of time, such as GPS tracking or navigation in a car,
or playing a graphics-intensive game.
If your device gets too warm
If the interior temperature of the device exceeds the normal operating
range, the device will protect its internal components by attempting
to regulate its temperature. If this happens, you might notice these
- The device stops charging.
- The display dims or goes black.
- Cellular radios enter a low-power state. The signal might weaken during this time.
- The camera flash is temporarily disabled.
Additionally, if you're navigating, the device might show this alert
and turn off the display: "Temperature: iPhone needs to cool down."
Navigation still provides audible turn-by-turn directions. When
approaching a turn, the display will illuminate to guide you through
If you see a temperature warning screen
If the device exceeds a certain temperature threshold, it will present
a temperature warning screen similar to this:
An iPhone showing this message might still be able to make emergency
To resume use of your device as quickly as possible, turn it off, move
it to a cooler environment, and allow it to cool down.