Every Pakistani school knows the pattern. By late April the classrooms are warm; by May, in much of Sindh, Punjab and Balochistan, the afternoon is genuinely dangerous for children, and the news carries reports of heat-related illness every summer. Children are more vulnerable to heat than adults: they heat up faster during play, they often do not drink enough on their own, and they may not recognise or report feeling unwell until they are already in trouble. Yet most school heat illness is preventable, and prevention is mostly about decisions made in advance — at what temperature the timetable changes, when assembly moves indoors, when school closes early — rather than heroics during a crisis. This heatstroke prevention schools Pakistan summer guide sets out a practical protocol: thresholds, shade, water, recognition and cooling-first response, written for schools that cannot afford air-conditioning in every room.
A note on scope first. This article gives general first-aid and safety guidance for schools; it is not medical advice for any particular child, and any child with suspected heatstroke needs professional medical help urgently. The protocol below is designed to keep children safe up to the point of hospital care, and to make sure the school recognises the emergency early rather than late. It should be written into the school's school emergency plan, briefed to all staff before the summer term, and shared with parents on WhatsApp so families know what to expect on hot days. A protocol nobody has read is no protocol at all.
Heat Thresholds and Early Dismissal
The single most important decision is also the simplest: decide in advance what triggers what. A workable set of thresholds for most Pakistani schools is: above about 38°C, move assembly indoors and cancel outdoor physical activity in the afternoon; above about 40°C, shorten the school day or shift to an early-morning timetable where the education department or school management allows it; and on days when the district administration or education department issues a heatwave closure or early-dismissal instruction, follow it immediately. These numbers should be adapted to local conditions — humidity makes heat far more dangerous than dry heat at the same temperature, and a school in humid Karachi faces different risks from one in dry Jacobabad — but the principle is fixed: thresholds are agreed before summer, written down, and applied without debate on the day.
Early dismissal deserves special planning, because a badly handled early dismissal creates its own danger: children leaving into the hottest part of the day with no transport arranged. When early dismissal is triggered, inform parents by WhatsApp at least an hour ahead where possible, hold children in shaded rooms until their transport or parent arrives, and never send young children out to wait in the sun for a van. Coordinate with van drivers in advance so they know the early timetable. If the school cannot dismiss early — for example, where parents cannot collect children sooner — then the fallback is a shortened, indoor-only day with no outdoor activity, frequent water breaks and fans running in every occupied room. The goal is always the same: no child exposed to the worst heat of the day without shade, water and supervision.
Shaded Assembly and Timetable Changes
Assembly is the most dangerous routine of a hot school day, and the easiest to fix. A full-school assembly standing in direct sun for twenty minutes, often in dark uniforms, is a classic trigger for fainting and heat exhaustion, and it is entirely avoidable. From the start of the hot season, move assembly into shade — under trees, a covered area, or indoors — shorten it to ten minutes, and excuse any child who feels unwell without question. Better still, on very hot days, replace standing assembly with classroom announcements over the speaker or by class teachers. No school tradition is worth a child collapsing in the sun, and parents understand that message when it is explained plainly.
The timetable needs the same treatment. Move physical education, sports practice and outdoor games to the first period of the morning, and cancel or replace them on the hottest days; a games period at noon in May is not character-building, it is a health risk. Keep classroom windows open for cross-ventilation where there is no air-conditioning, use fans in every occupied room, and allow children to sit away from sun-facing walls where possible. Consider the uniform too: on hot days, allow the summer uniform without blazers, ties or heavy sweaters, and allow caps or hats outdoors. These are small, free changes, and together they lower the heat load on every child in the building — which is the whole point of a heat protocol, as with any school safety infrastructure decision: many small protections, applied consistently.
Heat Rule
Water Breaks and Hydration Habits
Children do not drink enough on their own, especially when they are busy playing, so the school must build drinking into the day rather than hoping for it. Require every child to bring a water bottle, keep a supply of clean drinking water available for refills, and schedule formal water breaks: at the start of the day, mid-morning, before lunch, after lunch, and before dismissal, with teachers reminding classes to drink. On very hot days, add extra breaks and allow bottles on desks, so drinking does not depend on a child asking permission to leave class. Check the water supply itself: safe drinking water, tested and filtered, is a health basic, and our drinking water safety guide covers testing and filter routines in detail.
Food and drink habits matter too. Advise parents, through a short WhatsApp note at the start of summer, to send a full water bottle and a light lunch, and to avoid sending children to school on an empty stomach on hot days. At school, ORS sachets kept in the sick bay are useful for a child with heat exhaustion who is conscious and alert, mixed exactly as directed — but ORS is not a substitute for medical care, and a child who is vomiting, confused or unable to drink must not be given fluids by mouth. Teachers should also watch for the children most at risk: younger children, children who are overweight, children with chronic illness, and any child who has been ill recently. A quiet word to those children's teachers — watch them a little more closely on hot days — costs nothing and can prevent the worst outcomes.
Recognising Heat Exhaustion and Heatstroke
Every teacher should be able to recognise the two stages of heat illness, because the difference between them is the difference between a rest and an emergency. Heat exhaustion usually shows as heavy sweating, weakness, dizziness, nausea, headache, pale or clammy skin, and muscle cramps. The child is usually conscious and able to talk, and the condition often improves with rest in shade, cooling and fluids. Heatstroke is different and far more serious: body temperature rises dangerously, sweating may stop, the skin feels hot and dry or flushed, and the child may become confused, vomit, have a seizure, or lose consciousness. Heatstroke is a medical emergency — it can damage organs quickly — and it must never be managed by rest alone.
Train all staff, not just the sick-bay attendant, to spot these signs, with a short briefing at the start of the hot season and a one-page poster in the staff room and the sick bay. The briefing should stress two common mistakes: assuming a quiet child is fine (children often go quiet before they collapse), and assuming that because a child is still sweating they cannot have heatstroke (sweating can continue in some cases, especially after exercise). Any child who vomits, becomes confused, stops making sense, or collapses on a hot day is an emergency, full stop — no waiting to see if they improve, no debate about whether it is "just the heat". That clarity, drilled before summer, is what saves time when minutes matter.
Cooling-First Response Before Hospital Transfer
When heatstroke is suspected, the response has two tracks running at once: cool the child fast, and get professional medical help fast. Move the child to the coolest shaded place available, loosen or remove excess clothing, and cool the body by any available means: wet the skin with water and fan it, apply wet cloths or ice packs to the neck, armpits and groin, and if a shower or large water container is available, cool with water. At the same time, another staff member calls the parents and arranges immediate transfer to the nearest hospital — the school van or a parent's vehicle if an ambulance will take too long — and a staff member travels with the child, carrying a note of what happened, when symptoms began, and what cooling was given. Do not give fluids to a child who is unconscious, confused or vomiting, and do not delay transfer to finish cooling at school; cooling continues on the way.
For heat exhaustion, the response is calmer but still structured: rest in a cool shaded room, loosen clothing, cool with wet cloths and fanning, give small sips of cool water or ORS if the child is fully conscious and alert, and keep them resting until fully recovered before any return to class. Inform parents the same day, even when the child recovers quickly, and record the incident in the sick-bay register with the temperature, the activity at the time, and the care given — because a pattern of heat exhaustion cases in one class or on one field points to a timetable or shade problem the school can fix. After any serious incident, review the protocol within the week: what triggered it, what worked, what should change before the next hot day. A heat protocol is a living document, revised every summer from the school's own experience, and that revision habit is what turns one frightening day into lasting safety for every child.
AI Help: Muse AI
Muse AI is Meta's personal AI assistant, available in the Muse app. A principal can ask it to draft a short summer heat-safety notice for parents, or a one-page checklist of heat-illness warning signs for the staff room. Join Muse with invite code LTGSWD — in the Muse app, go to Settings > Redeem token and enter the code.
Disclosure: LTGSWD is the author's Muse invite code.