Summer Seasonal Affective Disorder (SAD): When Sunshine Doesn't Improve Mental Health
- Jenine Lillian
- Jun 8
- 5 min read
Written by Jenine Lillian, #ActuallyAutistic Neurodiversity Consultant & Educator (www.jeninelillian.com) and BCPF Society Board Member: Regional Director - Kootenays
When we hear about Seasonal Affective Disorder (SAD), the conversation almost always centers on winter — the short days, the grey skies, the way darkness seems to seep into everything. And that's real. But it's not the whole story.
I have Summer SAD. And every year, as the world starts buzzing with energy about patio season and lake days and outdoor adventures, I brace myself — not with excitement, but with the knowledge that the next few months are going to require a lot of careful, intentional self-management.
Summer SAD, sometimes called reverse SAD or summer-pattern SAD, is a real and valid form of seasonal depression. It's less talked about, partly because it doesn't match the cultural script. How do you explain that the sunshine is making things harder? How do you say "I'm struggling" when everyone around you is celebrating? That gap between lived experience and cultural expectation is part of what makes it so isolating.
I want to help close that gap — for myself, and for anyone else who has ever felt like the wrong kind of person for not loving summer.
What Summer SAD Can Look Like
Summer-pattern SAD doesn't always look like what we imagine when we picture depression. Instead of low energy and withdrawal, it often involves a kind of wired-but-exhausted dysregulation — the nervous system running too hot.
Common experiences include:
Difficulty sleeping or disrupted sleep cycles — longer daylight hours shift melatonin production and can make rest feel impossible
Restlessness or agitation — a feeling of being activated without anywhere for that energy to go
Irritability and emotional sensitivity — things that would normally roll off suddenly feel overwhelming
Reduced appetite or changes in eating patterns
Difficulty concentrating
Feeling overstimulated or overwhelmed — by heat, light, noise, crowds, or simply the pace of the season
Increased sensitivity to heat and light
Because these symptoms don't match the common image of depression, they're frequently misread — by others and by ourselves — as stress, burnout, or just "being difficult." That misreading delays support and adds a layer of shame that doesn't belong there.
Why Summer Can Be Hard: It's Not Just the Weather
Several overlapping factors contribute to summer-related changes in mood and regulation. Understanding them doesn't fix everything, but it does help us stop blaming ourselves.
Sleep and Circadian Rhythm Disruption Longer days throw off our internal clocks. Melatonin production shifts, sleep timing drifts, and rest becomes less restorative — which affects everything downstream.
Heat, Light, and Sensory Overload For neurodivergent people and those with sensory sensitivities, summer isn't just warm — it's loud. The combination of heat, humidity, bright light, crowded spaces, and increased noise creates a sustained sensory load that drains energy faster and contributes to emotional overwhelm or shutdown.
The Pressure to Perform Summer Here's the part that doesn't get said enough: summer comes with a social script, and it is exhausting.
We're expected to be outdoors, active, social, and visibly enjoying ourselves. Social media amplifies this with a very narrow version of what "good summer living" looks like. And in many parts of Canada — including here in British Columbia, where winters are long and grey — there's added cultural pressure to make the most of it, to not waste a single sunny day.
For people living with disability, chronic illness, mental health conditions, fatigue, sensory differences, or financial barriers, this cultural pacing can feel not just overwhelming, but exclusionary. It sends the message that if you're not participating the "right" way, something is wrong with you.
Nothing is wrong with you. The script was written without you in mind.
Weekend Culture and the Erosion of Rest Summer weekends often become packed with recreation, events, and social obligations. Rest becomes invisible — or something that has to be justified and defended. This is especially challenging for people experiencing burnout, disabled and chronically ill individuals, neurodivergent people managing sensory or routine needs, caregivers with limited downtime, and introverts who need significant recovery time.
Rest is not something that must be earned.
Summer SAD and Neurodiversity
For many neurodivergent people, summer introduces a cluster of changes that affect regulation and wellbeing all at once: loss of routine (especially for those attached to school or structured schedules), increased sensory demands, sleep disruption, higher social expectations, and transitions.
These don't stack neatly. They compound. And the result — burnout, fatigue, emotional overwhelm, shutdown — is not a personal failing. It's the nervous system responding to a high environmental load that most people around us aren't experiencing in the same way.
Being #ActuallyAutistic, I know this compounding effect personally. Summer asks a lot of my nervous system. Understanding that is part of how I advocate for myself.
Heat Sensitivity: A Note on Physical Safety
Heat affects people differently. Some medications, health conditions, and neurological differences increase heat sensitivity significantly. Heat exhaustion and heat stroke are serious — early signs include dizziness, headache, nausea, confusion, irritability, and difficulty concentrating.
In a culture that encourages pushing through discomfort, these warning signs can be easy to minimize or dismiss. They shouldn't be. Recognizing your own heat limits and responding — by resting, cooling down, or removing yourself from the environment — is self-advocacy, not weakness.
Self-Advocacy and Disability Justice in Summer
Disability advocacy challenges the assumption that everyone experiences seasons the same way, or should meet the same seasonal expectations. In self-advocacy communities, there is growing recognition that wellbeing cannot be measured by participation in seasonal norms.
Summer self-advocacy might look like:
Setting boundaries around social and outdoor commitments
Requesting accommodations for sensory or environmental needs
Prioritizing rest and recovery without guilt or explanation
Adjusting plans based on actual energy levels, not perceived obligations
Leaving overwhelming environments early
Communicating needs clearly, before you're already overwhelmed
These are not avoidance. They are access strategies. They are self-knowledge in action.
Practical Self-Care for Summer Mental Health
Self-care during summer doesn't need to look like what the wellness industry sells. It doesn't need to be photogenic or inspiring. It just needs to work for your nervous system, in real conditions.
Strategies that help me and many others include:
Maintaining consistent sleep routines as much as possible
Managing sensory input deliberately — controlling light, sound, temperature, and clothing textures
Reducing time on social media, especially content that triggers comparison
Staying hydrated and cool, and treating heat limits seriously
Avoiding over-scheduling, even with things that feel fun
Building predictable daily routines that offer stability amid seasonal chaos
Protecting rest and recovery time as a non-negotiable, not an afterthought
Rethinking What a "Good Summer" Looks Like
A good summer does not have to be busy, social, adventurous, or outwardly active.
For some of us, a healthy summer looks like: stability, routine, reduced burnout, quiet environments, emotional regulation, and the freedom to rest without guilt.
That is a good summer. It counts. It is enough.
When to Reach Out for Support
It may be helpful to seek support if seasonal changes persist over time, repeat annually, affect sleep, work, or relationships, cause significant distress, or impact daily functioning.
Recognizing a pattern is the first step — and you don't have to figure it out alone.
Summer is often portrayed as universally joyful. But lived experience is more complex, more varied, and more valid than any cultural script can capture.
For some people, summer brings energy and connection. For others — for me — it requires more rest, more structure, and more intentional self-protection.
Both experiences are real. Both are valid. And the more we talk openly about summer being hard, the more we make space for people who have been quietly struggling alone.
You are not the wrong kind of person. The conversation just hasn't caught up to you yet.
Jenine Lillian (Jenine, they/them) is an #ActuallyAutistic neurodiversity consultant, educator, artist, writer, and librarian based in the West Kootenays, BC. They serve as Regional Director: Kootenays for the BC People First Society. Learn more about Jenine's work at www.jeninelillian.com
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