> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sonohealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# When to Check Your Blood Pressure: Morning vs Evening

> The best times of day to measure blood pressure at home, why morning readings often run higher, and how to build a routine your doctor can rely on.

Blood pressure naturally rises and falls across the day, so *when* you measure changes what you see. A consistent routine gives you and your doctor the most useful picture.

<Note>
  A home monitor like the SonoHealth [BPpro](/blood-pressure/overview) is a tracking tool. Single readings matter less than patterns over time, interpreted by your doctor.
</Note>

## Why is blood pressure higher in the morning?

Blood pressure follows a daily rhythm. It typically rises in the hours around waking (the "morning surge"), stays steadier through the day, and dips during sleep. That's normal — but a very high morning reading pattern is worth discussing with your doctor.

## What are the best times to measure?

Most guidance suggests measuring **twice a day**: once in the **morning** before medication, food, or caffeine, and once in the **evening**. Take two or three readings a minute apart each time and record them all. Measuring at consistent times makes day-to-day comparisons meaningful.

## What to avoid right before a reading

For at least 30 minutes beforehand, avoid caffeine, exercise, and smoking, and empty your bladder. Then sit quietly for five minutes with your back supported, feet flat, and arm resting at heart level — see [how to measure accurately](/blood-pressure/how-to-measure-at-home). Talking or a full bladder can both push readings up.

## Building a routine

Pick two times you can keep consistently, such as before breakfast and before bed. Logging readings the same way each day helps reveal patterns like a high morning surge or [white-coat effect](/blood-pressure/white-coat-hypertension). Many monitors, including the BPpro, store readings so you can share them at appointments.

## When readings vary a lot

Some variation is normal, but big swings can come from technique, timing, stress, or an [irregular heartbeat](/blood-pressure/irregular-heartbeat-detection). If your numbers are inconsistent or trending high, bring your log to your doctor rather than reacting to any single reading.

***

**Related:** [How to Measure at Home](/blood-pressure/how-to-measure-at-home) · [White-Coat Hypertension](/blood-pressure/white-coat-hypertension) · [Irregular Heartbeat Detection](/blood-pressure/irregular-heartbeat-detection) · [Blood Pressure Categories](/blood-pressure/blood-pressure-chart-by-category)