Apple Health
Nightly wrist temperature over time.
The app reads existing wrist-temperature values from Apple Health and shows deviations, longer trends and cycle context. It does not measure temperature itself.
Views
- Daily readings and baseline deviations
- Weekly, monthly and yearly trends
- Heat maps and cycle comparisons
- Widgets, watch complications and configurable notifications
Before values appear
You need a compatible Apple Watch, Track Sleep with Apple Watch and Sleep Focus for at least four hours per night. Establishing a personal baseline usually takes about five nights.
Not a thermometer
Wrist-temperature deviation is not a clinical body-temperature reading. Cycle insights are not intended for contraception, diagnosis or treatment.
Apple Health
Values are read from Apple Health only after permission. If Health has no wrist-temperature samples, the app cannot display them.