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iOS 26 Includes Adaptive Temperature Option for Automatic Thermostat Adjustment

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iOS 26 includes a new Home app feature called Adaptive Temperature, which is designed to adjust the thermostat automatically when you leave the house or arrive back home.

homekit-showdown-redux.jpg

Adaptive Temperature can be turned on by opening up the Home app, selecting a thermostat, opening up the settings, and then tapping on Adaptive Temperature. With permission, Adaptive Temperature can switch between temperature modes (Cool/Heat/Auto/Off) as needed, predict user arrival based on daily schedule to adjust temperature, and change the temperature based on room occupancy if occupancy sensors are available.

According to Apple, Adaptive Temperature relies on Activity History to determine whether someone is home. The thermostat will adjust temperature based on a "home" state, which is when someone is in the house, and an "away" state, which is when no one is home. There's also an "extended away" state that further tweaks the temperature if no one is home for longer than 24 hours, or if every member of the home is a certain distance away.

The Activity History feature in the Home app does not specifically log when someone leaves or arrives home, but it does keep track of when the home's activity state changes. Turning off location sharing with the Home app will prevent Activity History from using a device's location to trigger Adaptive Temperature.

It's not yet clear if Adaptive Temperature is working, or if thermostat makers need to release software updates to enable the feature. On Reddit, several users have been unable to find the Adaptive Temperature setting for their HomeKit or Matter-compatible thermostats.

Article Link: iOS 26 Includes Adaptive Temperature Option for Automatic Thermostat Adjustment
 
Article Link
https://www.macrumors.com/2025/09/17/ios-26-adaptive-temperature/
Last edited:
Why wouldn't this be part of an automation? like "when I leave home, turn the thermostat down to 65, when I arrive home, turn the thermostat to 73" or something, no need for "learning". But I guess we need all this "automated stuff"
 
ecobee is notorious for not allowing full control over their devices via the Home app. All new ecobee thermostats and sensor come with Thread radios yet they refuse to implement Matter over Thread.

Hopefully they supports Adaptive Temperature, otherwise Apple really needs to build in automatic support for all HomeKit devices.
 
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I'm sure it's a good feature for some people, but it's useless to me. I use the Aqara W100 remote sensor & M100 Hub to control the climate in our music room. The Matter Nest thermostat is in the hall, and is not reflective of the temperature in the music room. The Aqara system is more responsive, and if you use Celsius, you can set things in half degree increments. Using an automation, I can keep the music room in a 4 degree range, which solved the problem of the piano going out of tune every 2-3 months. (BTW, the Matter Nest thermostat is not compatible with the Nest remote sensor. Fail!)
 
GIZBUG said:
Where do you find this setting
Click to expand...
You're asking about the Homekit integration with a Nest, right?
Same here if you are, but I don't think it is going to come. At least not with Nest products, at least not mine (Not Homekit based).

But I don't think Google/Nest even makes any Homekit compatible products, do they?

You could set something like this up using Home Assistant yourself, or use the Nest builtin somewhat "adaptive temperature" which for me just runs over the temperature you set by a degree usually. That's about how "smart" it is, again for me at least.
 
parameter said:
You're asking about the Homekit integration with a Nest, right?
Same here if you are, but I don't think it is going to come. At least not with Nest products, at least not mine (Not Homekit based).

But I don't think Google/Nest even makes any Homekit compatible products, do they?

You could set something like this up using Home Assistant yourself, or use the Nest builtin somewhat "adaptive temperature" which for me just runs over the temperature you set by a degree usually. That's about how "smart" it is, again for me at least.
Click to expand...
Only the 4th Gen Nest learning thermostat is matter enabled, which is the key to HomeKit integretion.
 
parameter said:
You're asking about the Homekit integration with a Nest, right?
Same here if you are, but I don't think it is going to come. At least not with Nest products, at least not mine (Not Homekit based).

But I don't think Google/Nest even makes any Homekit compatible products, do they?

You could set something like this up using Home Assistant yourself, or use the Nest builtin somewhat "adaptive temperature" which for me just runs over the temperature you set by a degree usually. That's about how "smart" it is, again for me at least.
Click to expand...

Nest has had Matter integration for a while now, which means it has HomeKit integration. I routinely manage my two Nest thermostats using the Home app across my Apple devices.

Regarding the automation, based on your phone, it's called Home/Away Assist. That has to be managed in the Google Home app.
 
tennisproha said:
ecobee is notorious for not allowing full control over their devices via the Home app. All new ecobee thermostats and sensor come with Thread radios yet they refuse to implement Matter over Thread.

Hopefully they supports Adaptive Temperature, otherwise Apple really needs to build in automatic support for all HomeKit devices.
Click to expand...

Ecobee already does this on its own. It should be the first thing you turn off.
 
I'm interested in the Nest Learning Thermostat, but I don't think it can "speak" to my two Mitsubishi split-level heat pumps (we call them "minisplits"), which are connected to air handlers mounted on the walls. Each air handler has its own remote. That means the interior temperature for each room that has an air handler is set by a physical remote...and I'm not sure the Nest device can speak to the air handlers directly. The heat pumps and their remotes are fairly old now: the newer equipment was originally installed in 2015. The older equipment was around 2010. I'm not sure if the air handlers can be updated to become Matter-enabled.
 
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