---
title: "Seasonal Affective Disorder Test: Free 15-Item SAD Screening"
id: "10597"
type: "snax_quiz"
slug: "seasonal-affective-disorder-test"
published_at: "2026-09-22T21:26:21+00:00"
modified_at: "2026-09-22T21:26:21+00:00"
url: "https://psymed.info/all_quiz/seasonal-affective-disorder-test/"
markdown_url: "https://psymed.info/all_quiz/seasonal-affective-disorder-test.md"
excerpt: "This free Seasonal Affective Disorder test helps you reflect on whether your mood follows the seasons in a way consistent with SAD — a form of depression that arrives at the same time each year, most often in the darker..."
taxonomy_category:
  - "Mood and Depression"
taxonomy_snax_format:
  - "Personality quiz"
---

[Mood and Depression](https://psymed.info/category/mood-and-depression/)

# Seasonal Affective Disorder Test: Free 15-Item SAD Screening

- Published: September 22, 2026
- Last Reviewed: September 22, 2026

[Take the test now →](#begin-test-section)

This free **Seasonal Affective Disorder test** helps you reflect on whether your mood follows the seasons in a way consistent with SAD — a form of depression that arrives at the same time each year, most often in the darker fall and winter months, and lifts as the days grow longer. Unlike ordinary “winter blues,” SAD is a recognized clinical condition that can genuinely interfere with your life. It’s a screening tool for reflection, not a diagnosis.

If you notice your energy, mood, and motivation reliably sink when the days get short — and return in spring — this quiz can help you make sense of that pattern. Whatever your result, please know that SAD is a real medical condition driven by your body’s response to light and seasonal rhythms, not laziness, weakness, or something you should be able to just push through. And importantly, it’s very treatable.

If you’re struggling, support is available right now.

Seasonal Affective Disorder is real depression, and it can bring thoughts of hopelessness or self-harm. If you’re in emotional distress or thinking about harming yourself, call or text **988** (Suicide & Crisis Lifeline) any time — it’s free, confidential, and available 24/7 in the US.

Outside the US, find a local line at [findahelpline.com](https://findahelpline.com/)
. You don’t have to wait for winter to pass to get support.

## What Is Seasonal Affective Disorder?

Seasonal Affective Disorder (SAD) is a form of depression that follows a seasonal pattern — symptoms appear and remit at the same times each year, most commonly beginning in fall or winter and easing in spring and summer. In the DSM-5-TR, it isn’t a separate diagnosis but a specifier: “major depressive disorder with seasonal pattern.” It was first described by Dr. Norman Rosenthal and colleagues in 1984, and it affects roughly 5% of US adults, with the most difficult months typically being January and February.

The defining feature of SAD is its **timing**, not just its symptoms. Everyone can feel a bit flat on a dark, cold day — that’s normal. SAD is diagnosed when full depressive episodes recur predictably with the seasons, over at least a two-year period, and the seasonal episodes clearly outnumber any non-seasonal ones. In other words, it’s the seasonal *rhythm* that distinguishes SAD from both ordinary “winter blues” (which is milder and doesn’t meet the threshold for depression) and from non-seasonal depression. SAD is more common farther from the equator (where winter days are shorter), in younger adults, and in women, and it’s thought to stem from how reduced winter light disrupts circadian rhythms, melatonin, and serotonin.

## Winter SAD, Summer SAD, and the Symptoms That Set It Apart

Most SAD is winter-pattern (about 90% of cases), and it often looks different from “classic” depression in a way that’s genuinely useful to recognize. Where typical depression frequently brings insomnia and loss of appetite, **winter SAD tends to bring the opposite** — a cluster of “atypical” symptoms: sleeping too much (hypersomnia), heavy morning fatigue, increased appetite with strong cravings for carbohydrates and sweets, weight gain, and a leaden, weighed-down heaviness in the limbs. Alongside these come the core depressive symptoms: low mood, loss of interest, low energy, difficulty concentrating, and social withdrawal (the urge to “hibernate”).

Less commonly, some people experience **summer-pattern SAD**, which tends to look more like classic depression — insomnia, reduced appetite, weight loss, agitation, and irritability — arriving in late spring or summer and lifting in fall. Recognizing which pattern you have matters, because it shapes both understanding and treatment. This Seasonal Affective Disorder test focuses mainly on the far more common winter pattern, but it captures the seasonal timing either way.

## Signs of Seasonal Affective Disorder

SAD shows up as a recognizable set of symptoms that arrive and depart with the seasons — and the seasonal timing is the thread that ties them together. As you read these signs, notice which feel familiar *and* whether they follow a yearly pattern. Recognizing several, tied to a particular time of year, is worth taking seriously.

### Your mood sinks at the same time each year

The clearest sign: low mood, sadness, or depression that reliably arrives in a particular season (usually fall or winter) and lifts months later as the season changes. This seasonal rhythm, repeating year after year, is what defines SAD.

### You sleep much more but still feel exhausted

You oversleep, struggle to get up in the morning, and feel heavy, groggy, and fatigued through the day no matter how much you rest — a hallmark of winter SAD that’s the reverse of the insomnia seen in typical depression.

### You crave carbs and sweets, and may gain weight

Your appetite increases, especially for starchy and sugary comfort foods, and you may put on weight over the season. This carbohydrate craving is one of SAD’s most distinctive atypical features.

### Your energy drops and everything feels heavy

You feel a profound, leaden fatigue — low energy, sluggishness, and a sense that even small tasks take enormous effort. Motivation drains away, and you may feel like you just want to “hibernate.”

### You lose interest and withdraw socially

Activities and people you usually enjoy stop appealing to you during the season, and you pull back from friends, plans, and hobbies — wanting to stay in and avoid contact until the season passes.

### You struggle to concentrate and feel low about yourself

Difficulty focusing, thinking clearly, or making decisions sets in, often alongside feelings of hopelessness, worthlessness, guilt, or being “not yourself” — the core cognitive and emotional signs of depression, appearing on a seasonal schedule.

### It clearly lifts when the season changes

Crucially, these symptoms noticeably improve or disappear when the season turns — typically brightening in spring as daylight returns. That spring recovery is a key part of the seasonal pattern that distinguishes SAD from year-round depression.

These signs exist on a spectrum, and having a few in one hard winter doesn’t necessarily mean you have SAD — but a clear, repeating seasonal pattern that affects your life is worth discussing with a professional.

## How This Seasonal Affective Disorder Test Works

This test has 15 questions about your mood, energy, sleep, and appetite — and, crucially, how they relate to the seasons. Answer based on your **typical yearly pattern** (not just today), choosing how often each is true for you:

**Never = 0 | Rarely = 1 | Sometimes = 2 | Often = 3 | Always = 4**

Your answers add up to a score from 0 to 60, reflecting how closely your experience matches the pattern of Seasonal Affective Disorder. Because the seasonal *timing* is what defines SAD, pay special attention to the questions about whether your symptoms follow a yearly rhythm — those matter most. Answer honestly; your result is private, and it’s a starting point for reflection, not a diagnosis.

## Understanding Your Results

Your score reflects how closely your experience matches Seasonal Affective Disorder — but remember that the seasonal *timing* is essential, so a high score matters most when your symptoms genuinely follow a yearly pattern. Read your result as a screening signal, not a diagnosis.

| Score | Level | What It Suggests |
| --- | --- | --- |
| 0 – 15 | Few Signs | Few signs of a seasonal mood pattern right now. |
| 16 – 30 | Some Seasonal Patterns | Some seasonal mood changes worth monitoring and reflecting on. |
| 31 – 45 | Significant SAD Patterns | A significant seasonal depression pattern; a professional conversation is recommended. |
| 46 – 60 | Strong SAD Patterns | A strong seasonal depression pattern; reaching out to a professional is strongly encouraged. |

## Treatment for Seasonal Affective Disorder

SAD is one of the more treatable forms of depression, in part because its link to light gives clinicians a specific and effective tool — and treatment often works best when started before or early in your difficult season. Care is usually tailored to you and may combine several approaches.

- **Light therapy (phototherapy)** is the signature treatment for winter SAD: sitting near a specially designed bright light box (typically around 10,000 lux) for about 30 minutes in the early morning, through the darker months, can meaningfully lift symptoms — the atypical features of SAD (like carb craving and oversleeping) actually predict a good response.
- **Talk therapy**, especially cognitive behavioral therapy adapted for SAD (CBT-SAD), helps with the thoughts and behaviors that deepen the seasonal dip and can have lasting, preventive benefits.
- **Medication** — commonly SSRIs such as fluoxetine — helps many people, sometimes started proactively before symptoms begin, as decided with a doctor.
- **Lifestyle support** matters too: maximizing natural daylight (getting outside in the morning, sitting near windows), regular exercise, a steady sleep schedule, and staying socially connected all help.

**One important note**: if you have bipolar disorder, treatments like light therapy and antidepressants should be used carefully and under medical supervision, because they can occasionally trigger manic symptoms. A doctor can help you find the right, safe combination — our [SAMHSA National Helpline](https://www.samhsa.gov/find-help/national-helpline)
 and your physician are good starting points.

## Frequently Asked Questions

### Can this test diagnose seasonal affective disorder?

No. This is an educational screening tool, not a diagnostic instrument. It can help you reflect on whether your mood follows a seasonal pattern consistent with SAD, but only a qualified professional — a doctor, psychologist, or psychiatrist — can diagnose it. A proper diagnosis requires confirming that full depressive episodes recur with the seasons over at least two years, that they outnumber any non-seasonal episodes, and that other causes have been ruled out.

A high score here means it’s worth seeking a professional evaluation; it doesn’t by itself confirm SAD. Think of your result as useful information to help you decide whether to reach out — and if your mood is affecting your life, that step is worthwhile regardless of the exact score.

### What’s the difference between SAD and the “winter blues”?

The difference is severity and impact. The “winter blues” is a common, milder experience — feeling a bit low, sluggish, or less motivated during dark months — that doesn’t seriously disrupt your ability to function. Seasonal Affective Disorder is a form of clinical depression: the symptoms are more intense and persistent, meet the threshold for a major depressive episode, and genuinely interfere with your work, relationships, and daily life.

Both follow a seasonal pattern, but SAD is a diagnosable condition that often needs treatment, while the winter blues can usually be managed with self-care like getting outside and staying active. If your seasonal low is significantly affecting your life, that points toward SAD rather than simply the blues, and it’s worth taking seriously.

### Why does less sunlight cause depression in some people?

The leading explanation is that reduced winter daylight disrupts the body’s internal systems in people who are vulnerable to it. Shorter days can throw off your circadian rhythm (your internal biological clock), alter the timing and amount of melatonin (the sleep hormone), and affect serotonin, a neurotransmitter involved in mood — research has found that some people with SAD don’t regulate their serotonin transporter normally in winter.

Less sunlight also means less natural cue for your body to feel alert and awake during the day. Because sunlight exposure is central, SAD is more common at higher latitudes where winter days are shortest, and light therapy — which substitutes for missing daylight — is one of its most effective treatments. Not everyone is equally sensitive to these changes, which is why some people get SAD, and others don’t.

### Does seasonal affective disorder happen only in winter?

No, though winter is by far the most common. About 90% of SAD is winter-pattern, beginning in fall or winter and lifting in spring. But a smaller number of people experience summer-pattern SAD, which starts in late spring or summer and eases in fall. Interestingly, summer SAD often looks different: instead of the oversleeping and increased appetite typical of winter SAD, it tends to bring insomnia, reduced appetite, weight loss, restlessness, and irritability — more like classic depression.

Whatever the season, the defining feature is the same: a depressive pattern that reliably comes and goes at a particular time of year. If your low mood consistently arrives in summer rather than winter, that’s still a seasonal pattern worth discussing with a professional.

### How is seasonal affective disorder treated?

SAD is very treatable, often with a combination of approaches. Light therapy — using a bright light box (around 10,000 lux) for about 30 minutes each morning through the difficult season — is the signature treatment for winter SAD and helps many people. Cognitive behavioral therapy adapted for SAD (CBT-SAD) addresses the thoughts and behaviors that worsen the seasonal dip and can have lasting benefits. Antidepressant medication, usually an SSRI, is effective for many and is sometimes started before symptoms begin.

Lifestyle steps — getting outside in daylight, exercising, keeping a regular sleep schedule, and staying connected — support all of these. Because SAD is predictable, starting treatment before or early in your difficult season often works best. If you also have bipolar disorder, treatment needs careful medical supervision, since light therapy and antidepressants can occasionally trigger mania.

## Related Tests

- [Depression Test (PHQ-9)](https://psymed.info/all_quiz/clinical-depression-test/) — for depression that isn’t tied to a specific season
- [Dysthymia Test](https://psymed.info/all_quiz/dysthymia-test/) — for persistent, longer-term low mood
- [Bipolar Test](https://psymed.info/all_quiz/bipolar-test/) — seasonal patterns can occur in bipolar disorder, which needs different treatment
- [Anxiety Test](https://psymed.info/all_quiz/anxiety-test/) — anxiety often co-occurs with seasonal depression
- [Anhedonia Test](https://psymed.info/all_quiz/anhedonia-test/) — for the loss of interest and pleasure that seasonal depression brings
- [Burnout Test](https://psymed.info/all_quiz/burnout-test/) — low energy and exhaustion can overlap with seasonal low mood

## References

1. American Psychiatric Association. Seasonal Affective Disorder (SAD). [MDD with seasonal pattern; ~5% prevalence; symptoms and treatment] [psychiatry.org](https://www.psychiatry.org/patients-families/seasonal-affective-disorder)
2. Rosenthal, N.E., et al. (1984). Seasonal affective disorder: A description of the syndrome and preliminary findings with light therapy. *Archives of General Psychiatry, 41*(1), 72–80. [The original description of SAD] [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/6581756/)
3. National Institute of Mental Health. Seasonal Affective Disorder. [Symptoms, causes, light therapy, and treatment] [nimh.nih.gov](https://www.nimh.nih.gov/health/publications/seasonal-affective-disorder)
4. Melrose, S. (2015). Seasonal Affective Disorder: An Overview of Assessment and Treatment Approaches. *Depression Research and Treatment*. [Atypical symptom cluster; assessment] [ncbi.nlm.nih.gov](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4673349/)

## Leave your vote

**0** Points

[Upvote](#)
[Downvote](#)

[More](#)
- Read Later
- Add to Favourites
- Add to Collection
- [Report](mailto:info@psymed.info?subject=Hey,%20I%20would%20like%20to%20report%20an%20abuse&body=Reported%20link:%20https://psymed.info/all_quiz/seasonal-affective-disorder-test/)

Written by

[Anthony Miller](https://psymed.info/author/amiller/)

Mood and Depression

[Free Bipolar Test — Bipolar Disorder Self-Assessment](https://psymed.info/all_quiz/bipolar-test/)
→

Mood and Depression

[Free Dysthymia Test — Do I Have Persistent Depression?](https://psymed.info/all_quiz/dysthymia-test/)
→

Mood and Depression

[Edinburgh Postnatal Depression Scale (EPDS) — Free Online Screening](https://psymed.info/all_quiz/edinburgh-postnatal-depression-scale/)
→

Mood and Depression

[Do You Have Cyclothymia? Take This 20-Item Mood Swings Test](https://psymed.info/all_quiz/cyclothymia-test/)
→

Sexual Orientation & Gender Identity

[What Type of Lesbian Am I Quiz – Discover Your Lesbian Identity](https://psymed.info/all_quiz/what-type-of-lesbian-am-i/)
→

Body Image and Eating Disorders

[Free Eating Disorder Test](https://psymed.info/all_quiz/eating-disorder-test/)
→

Sexual Orientation & Gender Identity

[Free Asexuality Spectrum Test — Where Do You Fall?](https://psymed.info/all_quiz/asexuality-spectrum-test/)
→

Depression & Mood

[Types of Anhedonia: Social, Physical, Anticipatory and Consummatory](https://psymed.info/anhedonia-a-closer-look/)
→