In young children, migraines most frequently come in the late afternoon, but as the child ages, they more often begin in the early morning.
In some people, a strong indicator of a coming migraine is an aura lasting about 20 minutes, which starts about half an hour before the migraine itself. The most common auras are visual, such as blurred or distorted vision, blind spots, brightly colored and flashing or moving lights or lines. Other auras may include changes in speech, movement, hearing, smell, taste or touch.