Your body’s ability to maintain your ideal temperature range is an indicator of whether your system is taxed and needs rest or is ready to face the day.

Where Is It?

To find your temperature reading from last night, go to the Readiness tab and tap “Body Temperature”.

How Does Oura Measure Your Body Temperature?

Usually, measuring your core body temperature requires an invasive thermometer. Oura opts for measuring your skin temperature instead, which shows much more variation, making it a key indicator of what influences your health. 

Other wearables use outward-facing sensors to estimate your temperature based only on your external environment or approximate it based on your heart rate, whereas Oura prioritizes accuracy by reading your temperature directly from your finger. 

To provide you with meaningful insights, Oura reports your temperature exclusively from your average nighttime temperature. Temperature is a highly sensitive measure and many daytime habits can influence your readings. Measuring at night is the best way to keep conditions stable to reveal your body’s true status.

How to Interpret Your Body Temperature

Oura measures your body temperature to help analyze your recovery. If your body temperature is clearly outside of your normal range (e.g., due to illness), you will see a lower than average Readiness Score.

The Readiness tab displays your previous night’s average temperature relative to your baseline (e.g., it was +0.3 or -0.2 compared to your average normal temperature).

An individual’s body temperature typically changes by about 1 °C (1.8 °F)  between its highest and lowest points each day. Anything outside of that range signals that something is challenging your body and preventing it from maintaining your ideal temperature range.

Keep in mind that internal changes (e.g., a fever) or external changes (e.g., a warm bedroom) can both cause temperature changes.

How to Interpret Your Body Temperature Trends

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

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

This view answers the question: “How much higher or lower is my body temperature today compared to my long-term temperature average?”

The Trend view is optimized for spotting trends in your temperature over longer time periods (e.g., a prolonged illness or hormonal shifts in a menstrual cycle). Each day displays a value that takes into account the previous three days of data. Rather than weight each date equally, the Trend view values recent days more than days further in the past.

This view answers the question: “What are my monthly body temperature variations like?”, or specifically, “When am I likely to start menstruating?”

If you’re using the Trends view to manage your menstrual cycle, look for these patterns:

  • lower temperatures during your follicular phase
  • higher temperatures during your luteal phase
  • spikes in temperature after ovulation
  • decreases in body temperature during menstruation

Keep in mind: Hormone cycles are highly individual and you may see different patterns in your temperature that are unique to your body.  Some cycles are more consistent or vary less than others. Certain types of hormonal birth control may also suppress variation altogether.