- Norfolk County Public Libraries - Check olc.ncpl.on.ca for locations and hours of operation.
- Waterford Tricenturena Arena - 32 E Church Street, Waterford. Check norfolkcounty.ca/skating for hours of operation.
Extreme Heat
Extreme heat events can put the public at risk of heat-related illnesses.
On this page
Heat Alerts
The Grand Erie Health Unit’s Medical Officer of Health will issue a Heat Alert or an Extended Heat Alert when extreme heat thresholds have been met. Subscribe to receive Weather Alerts by email.
Extreme heat effects
Knowing the risks and how to protect yourself and your family will keep you safe over the summer. When out in the heat, watch for symptoms of heat illness, which include:
- dizziness or fainting
- nausea or vomiting
- headache
- rapid breathing and heartbeat
- extreme thirst
- decreased urination with unusually dark yellow urine
If you experience any of these symptoms during extreme heat, immediately move to a cool place and drink liquids. Water is best.
Heat stroke is considered the most serious heat-related illness and can result in death if not addressed quickly. Symptoms of heat stroke include a high body temperature, confusion, and fatigue. If you suspect you or someone else is experiencing heat stroke, call 911 immediately.
Who is most at risk?
- Infants and young children
- Pregnant women
- Older adults
- People with certain chronic illnesses, such as breathing difficulties, heart conditions, or psychiatric illnesses
- People under the influence of drugs or alcohol
- People who have mobility constraints
- People who work or exercise outside
- Socially disadvantaged individuals such as those who are isolated, have low income or are homeless
- Newcomers to Canada (e.g. tourists, immigrants) who may not be acclimatized
How to stay safe
Visit Grand Erie Public Health's website for more information on how to protect yourself from heat-related illnesses.
Stay hydrated
- Drink plenty of cool liquids, especially water, before you feel thirsty
Dress for the heat
- Wear loose-fitting, light-coloured clothing made of breathable fabric
- If you need to be outdoors, wear a wide-brimmed, breathable hat or use an umbrella
Plan your day
- Schedule outdoor activities during the cooler parts of the day, such as early morning or evening
- Stay in the shade as much as possible when outside
Know your health risks
- If you take medication or have a health condition, ask your doctor or pharmacist if heat increases your risk and follow their advice
Keep others safe
- Never leave people or pets in a parked vehicle or in direct sunlight
- Check on neighbours, friends and family members—especially older adults, those who live alone, or people with chronic illnesses—to make sure they are staying cool and hydrated
Keep cool indoors
- Take cool showers or baths until you feel refreshed
- Block the sun by closing awnings, curtains or blinds during the day
- Take a break from the heat by spending time in a cool indoor space
The following locations can help you stay cool.
- Annaleise Carr Aquatic Centre – 182 South Drive, Simcoe (closure in place for 2026)
- Delhi Kinsmen Pool – 336 Talbot Road, Delhi
Swim programs and schedules vary. Admission rates apply. Visit norfolkcounty.ca/swimming for details.
- Simcoe Kinsmen Splash Pad – 281 Head Street North, Simcoe
- Delhi Splash Pad – 336 Talbot Road, Delhi
Visit norfolkcounty.ca/swimming for hours of operation.
Emergency housing
The Emergency Housing Program is a temporary housing program provided by Haldimand & Norfolk Housing and Social Services that provides brief support for those facing a crisis of absolute homelessness. Housing Support Workers are available to assist in re-establishing transitional or permanent housing.
Lean more about temporary housing support for Haldimand and Norfolk residents.
Causes of extreme heat
Four environmental factors work together to make it hot enough to endanger health:
- High temperature, high relative humidity (moisture in the air)
- Radiant heat (from the sun)
- Low wind speed (lack of air movement)
Additionally, an individual’s health can depend on their sensitivity, acclimatization, and their own, as well as their community’s, adaptability to extreme heat.
