During very hot and extreme heat conditions, students, staff and the school community are at greater risk of health problems. These can be specific heat-related illnesses or a worsening of existing medical conditions. Health risks are greater when high temperatures combine with increased humidity.
School closures
Unless the principal or regional director determines that the school must temporarily close due to a disaster or emergency situation, Queensland state schools remain open and students are not sent home during periods of excessive heat or heatwave conditions. Staff manage risks associated with excessive heat at schools through a variety of
strategies.
Extreme heat
Extreme heat conditions occur when the temperatures reach about 5 degrees Celsius above the average for sustained periods of time. People are most at risk of heat-related illnesses when the weather is very hot with high humidity. For more information including tips for beating the heat visit the Queensland Health website.
Heatwave
The Australian Bureau of Meteorology defines a heatwave as occurring when the maximum and minimum temperatures are unusually hot over 3 days in comparison to the local climate and past weather in that location.
The Bureau of Meteorology provides a
Heatwave Service for Australia with heatwave forecasts and heatwave assessments.
Heat-related illness
Heat-related illness can occur when the body is not able to cool itself. A broad range of symptoms can be associated with heat-related illness, ranging from swelling of hands and feet, heat rash and cramps, through to the more severe and potentially fatal heat stroke.
Further information is available from the
Queensland Government website.
Animals affected by excessive heat
Animals can also be affected by heat-related illness. Animals in the care of a school should be monitored and sufficient food, water and shelter provided to safeguard their welfare.
In excessive heat conditions there is an increased risk of contact with bats that may have the Australian bat Lyssavirus (ABLV). This is because heat-stressed bats may drop their young as a survival strategy, and when the bats are on the ground, children may try to pick them up. ABLV can cause serious illness or death. If you have bats in your local area, refer to
living with bats for further advice.
Strategies
Heat management planning:
- Create infrastructure that reduces exposure to heat e.g. room ventilation, access to additional fans, shade provision (plant trees or build structures), source alternative venues for outdoor activities.
- Consider the provision of at least 1 priority area of the school with artificial cooling.
- Build staff and student awareness about the prevention, monitoring and identification of heat stress symptoms.
- Consider suitable uniform options that incorporate UV protection and cooling fabrics.
Managing schools during excessive heat or heatwave conditions:
- Modify or suspend normal school activities during excessive heat.
- Postpone any outdoor or sporting activities where appropriate.
- Increase access to the coolest areas of the school grounds or facilities for lessons or other activities.
- Ensure students with additional support needs are appropriately supervised, including the monitoring of their hydration.
- Utilise water spray bottles.
- Ensure school lunch boxes are stored in cool areas.
- Facilitate and encourage students to drink plenty of water and to stay out of the sun. Department of Health recommends that during hot weather, water (room temperature or slightly cool rather than very cold) is the best fluid to drink.
- Undertake normal first aid procedures in the event of a student or staff member becoming heat stressed.
- Prepare a communication strategy for the school community, informed by the Assistant Regional Director, that the school falls within the Extreme Heat Warning Zone (a heatwave is imminent).
For further information, refer to the
managing excessive heat in schools guidelines and visit Queensland Health's website.
Playing and exercising safely in hot weather
Factors to consider when
cancelling or postponing a sporting event include, but are not limited to:
- the temperature—both ambient and relative humidity (local weather conditions can be checked on the Bureau of Meteorology website)
- the duration and intensity of the event (for example, an endurance or distance event has more potential for problems than a stop-start team event)
- rest and drink breaks
- time of day
- local environment
- acclimatisation of the participants
- fitness levels of participants
- age and gender of participants.
If the ambient temperature is between 31 and 35 degrees Celsius
and the relative humidity is over 50%, there is a high to very high risk of heat illness. Planned vigorous, sustained physical activity should be limited in intensity or duration to less than 60 minutes per session.
If the ambient temperature is over 36 degrees Celsius
and the relative humidity is over 30%, there is an extreme risk of heat illness. Planned vigorous, sustained physical activity should be postponed to a cooler part of the day or even cancelled.
Refer to the
Sports Medicine Australia Hot Weather Guidelines.