Late-afternoon agitation and confusion affect many people with dementia. Here is how San Diego families can respond, and where local help is available.
By Providence Senior Advisor Care Team · September 30, 2026
Sundowning is the term families and clinicians use for a pattern in which confusion, anxiety, pacing, or irritability grows worse in the late afternoon or evening. A parent who is pleasant at breakfast may, by five o'clock, insist on going home even though they are home, hide belongings, or become suspicious of familiar caregivers. It is not a separate disease. It is a symptom pattern seen in many people living with Alzheimer's disease and other forms of dementia.
Researchers do not fully agree on the cause. Fatigue, changes in the body's internal clock, dim or shadowy light, hunger, unmet needs, and a noisy or rushed household can all contribute. For San Diego families, one practical point matters most: a sudden change in behavior is worth a call to the doctor before anyone assumes it is just dementia. Pain, a urinary tract infection, constipation, poor sleep, and medication side effects can all look like sundowning.
Most of the strategies that help are low-cost and non-medical. A steady routine, with meals, activity, and bedtime at predictable hours, reduces uncertainty. Many families schedule the busiest activities, such as appointments, bathing, and visitors, for the morning, when energy and mood tend to be best, and keep the late afternoon quiet.
Light matters. Getting outdoors in the morning helps regulate sleep, and San Diego's mild weather makes a walk practical most of the year. As dusk approaches, turn on lamps before the room gets dim, since shadows can be frightening or misread. Limit caffeine after noon, offer an early dinner, and keep a simple snack available. Some people find that soft music, a familiar photo album, or folding laundry gives them a calming task during the hard hour.
When agitation does appear, try to respond to the feeling rather than the facts. Arguing that it is not time to go to work rarely helps. Saying you can see they are worried and offering a cup of tea, a gentle walk, or a change of scenery usually works better. Also check the basics: bathroom, thirst, hunger, and pain.
Bring a written log to the appointment: what time the behavior starts, how long it lasts, what happened earlier in the day, and what seemed to help. Ask the physician to review every medication, including over-the-counter sleep aids, since some can increase confusion in older adults. Ask whether a hearing or vision problem could be adding to disorientation.
Medication for agitation is sometimes discussed, but it carries real risks in people with dementia, and doctors generally recommend trying environmental and routine changes first. If you do not yet have a formal diagnosis, our guide to memory evaluations in San Diego explains where to start.
Evenings are exhausting for the person providing care, and burnout is a real risk. The Alzheimer's Association runs a free 24/7 Helpline at 800-272-3900, and its San Diego/Imperial chapter offers caregiver education classes and support groups. The county's Aging & Independence Services, the Area Agency on Aging, can be reached at 800-339-4661 for information about respite care, adult day programs, and in-home supports.
Adult day health programs are especially useful for sundowning, because a structured, engaging day often leads to a calmer evening. If you are considering a move, ask any memory care community how staff handle late-day restlessness, whether activities are scheduled in the late afternoon, and what dementia-specific training caregivers receive. Then check the facility's licensing and inspection history on the California Department of Social Services Community Care Licensing website, ccld.dss.ca.gov. Veterans can also ask the VA San Diego Healthcare System in La Jolla about geriatric and caregiver support programs.
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