A note on what this page is and isn't
To be clear about scope: this page doesn't claim that weather or seasons cause ME/CFS, and it makes no medical claims about weather sensitivity. What it reflects is simply what people report: some people notice that seasonal conditions change what feels manageable, while others notice little difference. Where a season genuinely changes nothing for someone, that's one of the two normal experiences, and none of what follows is a programme to follow.
Winter
The season people mention most often, for a stack of practical reasons:
- Cold — heavier clothing to wear and carry, more layers to manage, and the constant small business of staying warm; for some people cold also makes symptoms harder to tolerate
- Darker mornings — getting up and moving happens against the darkest part of the day, which can make the morning's first hour heavier than in summer
- Shorter daylight overall — less natural light for tasks, errands and the walk that used to be easy after 6pm; the day effectively closes earlier
- Heavier clothing and bedding — physically heavier to wear, wash, dry and change, all of which is quiet load
- Heating — bills, the effort of managing warmth room by room, and the choice between the cold room and the stuffy one
- Illness season — more coughs and colds around, and for many people with ME/CFS an ordinary infection can set things back for weeks; this is also the season requiring the most advance thought about staying away from illness where possible
- Travel in bad weather — every errand becomes slower, wetter, more layered, and less predictable
- Holiday and social expectations — covered in their own section below, because they can outweigh everything else on this list
Spring
- Changing temperatures — the coat-or-no-coat weeks, where the day starts one season and ends another; layering is the practical answer, at the cost of more clothing decisions
- Increased light — brighter days and longer evenings, which many people find genuinely easier; a few find the extra brightness harder on light-sensitive symptoms
- Pollen and environmental changes — some people notice seasonal environmental changes affecting how they feel; this page makes no allergy claims — where pollen seems relevant, that's a question for a GP rather than a resource page
- The pressure to “get out more” — the seasonal expectation that better weather means more activity, arriving exactly as if the winter version of the illness had been a choice
- Household and garden tasks increasing — the spring-clean pressure, the garden waking up, the jobs that didn't exist in January; all of it optional, none of it feeling optional in April
Summer
- Heat — hot rooms that can't be cooled, hot nights, and for some people heat making symptoms noticeably harder to manage; overheating is one of the more commonly reported summer difficulties
- Bright light — long bright days, glare, and for light-sensitive people a season of squinting; hats, sunglasses and blackout options are practical, not dramatic
- Travel — the holiday season, with its packing, planning, transport and disruption of whatever fragile daily arrangement exists
- Social events — invitations arrive in clusters, each one warm, welcome and costly; the summer can be socially relentless compared with February
- Visitors — people come, in twos and fours, and stay; lovely, and a scheduling problem for anyone whose week has a carefully small amount of contact in it
- Hydration access — staying hydrated requires access to drinks, which requires either getting to the kitchen or someone bringing them; in hot weather, the cost of under-doing it is higher
- Difficulty with hot rooms — the kitchen on a hot day, the stuffy bedroom, the bus with no air: summer has its own version of the winter problem of controlling temperature
Autumn
- Temperature shifts — the reverse of spring: the layers come back, the heating decisions resume, the mornings darken in the other direction
- Shorter days — the daylight closes down week by week, which for many people is the truer start of winter than the calendar
- Returning routines — school runs, clubs, work rhythms ramping up after the summer; the September restart is a genuine demand even for people without children
- School and work changes — new teachers, new timetables, new colleagues, new versions of the year's ordinary logistics to learn
- Preparation for colder weather — the sensible jobs (checking heating, sorting winter clothes, restocking the cold-weather essentials) that are much cheaper done in October than discovered in December
Small preparations, not systems
The practical layer of all of this, without turning the year into a project:
- Keeping layers accessible — the cardigan within reach, the blanket where it's used, rather than at the far end of a wardrobe that requires standing
- Reducing overheating where possible — fan, lighter bedding, curtains on the bright side, the cool room identified before the hot week rather than during it
- Planning around bright light where it's difficult — errands timed to the gentler hours, seating chosen away from glare, sunglasses kept where they're actually needed
- Simpler social plans — the seasonal version of everything on the Low-Energy Days page: shorter, seated, with exits
- Preparing frequently used seasonal items — the winter things washed and reachable before the first cold week; the summer versions likewise; last-minute preparation is the expensive kind
- Adjusting timing where it helps — moving tasks to the part of the day or year that costs least, which is ordinary planning rather than a concession
“Seasonal pressure”
The demand that arrives with each season wearing a social costume:
- Christmas — the densest concentration of expectation in the calendar: presents, food, gatherings, travel, family logistics, and a cultural requirement to enjoy it; the Boundaries and Family pages cover the individual pieces of the season
- School holidays — routines invert, the house is full, childcare demand peaks, and for parent and non-parent alike the ordinary scaffolding of the week changes shape for six weeks
- Weddings — the events that cannot be resized: travel, a whole day, an outfit, a room of people, and an invitation that is also a declaration of relationship
- Summer outings — the group trips, the picnics, the invitations to be out in the sun while the sun is briefly out
- Family gatherings — the seasonal versions of everything on the Family page, concentrated, often loud, and arriving on a fixed date that ignores pacing entirely
The point of naming these is that social expectation can create as much demand as the weather itself — the effort of managing other people's assumptions about participation often costs more than the event would have. Practical responses live on the pages just linked; seasonally, the one thing worth doing early is declining sooner rather than later, because a decision made calmly in November is cheaper than one negotiated in the December aisle of a supermarket.