How is Body Temperature Measured?

To find your temperature reading from last night, go to the Readiness tab. Tap "Body Temperature" to explore trends in your temperature. 

How does Oura measure your temperature?

  • - From your skin rather than your internal body temperature through an invasive thermometer.
  • - Directly from your finger rather than other wearables, which may use external sensors that can only estimate your body temperature as they measure your environment rather than your skin.
  • - Exclusively from your night time temperature. Body temperature is a highly sensitive measure and many day time habits can influence your measurement. Measuring at night is the best way to keep conditions stable and reveal your body's recovery status. 

Why can't you see absolute values?

Oura shows temperature changes around your baseline, so absolute values (Fahrenheit/Celsius) aren't available.

During the first days of using your Oura ring, your insights are based on population norms so it's normal for the graph to stay at 0.0. As the ring measures more data and learns more about your body, you'll start noticing trends and variations relative to your baseline. 

Once your baseline has been established, it's continuously updated and will adjust to your normal body temperature over time.

How to interpret your body temperature (a value) 

Oura measures your body temperature to analyze your recovery status. If your body temperature is clearly out of your normal range (e.g., due to illness), you'll see a lowered Readiness score. 

The Readiness tab displays your average body temperature for the previous night relative to your baseline (e.g., it is +0.3 or -0.2 today compared to your average normal temperature). Normal fluctuation is typically 0.5 °C (0.90 °F). Anything outside of that likely indicates something is challenging your system.


How to interpret your body temperature Trends (a graph)

You can view your body temperature Trends in two different views.

The Daily view focuses on short-term temperature changes. It displays the same value you see in your Readiness tab for each night. This view is ideal for spotting when something is starting to tax your body so you can prioritize rest and recovery.


The Trend view is a little different. This view is optimized for spotting large trends in your temperature over time (e.g., a prolonged illness or hormonal shifts in a menstrual cycle). Each date displays a weighted average of how your temperature varies from your baseline based on a three day window. This window weighs days closer to the current day more heavily.  


If you're using the Trend view to manage your menstrual cycle you're likely to see lower temperatures during your follicular phase, followed by a rise during your luteal phase. 


Note for Android users: The Daily view corresponds to the 30 Days view in the Android app.


Learn How to Engage With Your Body Temperature Data

Where Can I Learn More? 


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