Hot, humid temperatures are expected over Canada Day and through to the end of the week
BRAMPTON, Ont. – June 30, 2026. Peel Public Health has issued a heat warning for Peel region as hot temperatures and humidity begin June 30, lasting until Friday, July 3, and possibly into the weekend.
This warning comes as residents get ready to enjoy many outdoor events across the region this week, and Peel Public Health wants to remind everyone how to stay safe and avoid heat-related illnesses, including heat stress, heat exhaustion and heat stroke.
Peel’s Medical Officer of Health issues heat warnings when Environment and Climate Change Canada forecasts that the following thresholds have been reached:
- Daytime maximum temperatures are expected to reach 31 C or higher and overnight temperatures are 20 C or higher
OR
- Humidex values are expected to reach 40 C or higher.
An extended heat warning will be issued if a heat warning lasts 3 or more days.
“With many residents planning to spend time outdoors celebrating Canada Day and enjoying summer activities, it’s important to remember that extreme heat can quickly become dangerous,” said Dr. Alexa Caturay, Medical Officer of Health for Peel Region. “Heat-related illnesses are preventable. We encourage everyone to drink water frequently, take breaks in cool or shaded areas, and check in on older adults, young children, neighbours, those with chronic illness and others who may be more vulnerable to the effects of extreme heat.”
Health risks of hot temperatures
People at higher risk of experiencing heat-related illness include older adults, infants and young children, individuals with chronic illness, and people who work outdoors. Since it is still early in the summer, many people may not be adapted to the heat, so pay attention to how you and those around you are feeling.
Be aware of the following signs and symptoms of heat illness:
- High body temperature
- Skin rash
- Muscle cramps
- Dizziness or fainting
- Nausea or vomiting
- Heavy sweating
- Headache
- Rapid breathing and heartbeat
- Extreme thirst
- Dark urine and decreased urination
- Confusion and lack of coordination
If residents experience any of these symptoms during extreme heat, they should immediately move to a cooler place and drink water.
The following are signs and symptoms of heat stroke. Heat stroke is a medical emergency. Call 911 or your local emergency number immediately.
- High body temperature
- Lack of coordination and confusion
- Dizziness or fainting
- No sweating, but very red, hot skin
Keeping cool in extreme heat
There are places across the region where residents can go to keep cool. See your local municipality’s website for information on how to respond to heat including cooling centres, splash pads, pools, libraries and community centres. Hours at these locations may vary on July 1, Canada Day.
Peel Region’s website has information on the status of public beaches in Peel. Stay cool when it’s hot outside with these tips:
- Drink water regularly, even before you’re thirsty
- Wear lightweight, loose-fitting clothing and a wide-brimmed hat while outdoors
- Avoid direct sun exposure
- Plan any outdoor activities according to the weather conditions
- Take a cool shower or apply a cool, wet towel to the back of your neck
Resources:
Drop-in and homeless support programs – peelregion.ca.
https://peelregion.ca/health/protecting-your-health/hot-weather-heat-warnings
https://www.canada.ca/en/environment-climate-change/services/weather-health/uv-index-sun-safety.html