Ottawa Public Health extends heat warning

For immediate release:

August 17, 2015


Ottawa – Ottawa Public Health (OPH) has extended a heat warning for Ottawa, effective August 16 until August 20. A heat warning is issued when the Environment Canada temperature forecast is expected to exceed 31°C during the daytime and the night time temperature is not cooler than 20°C or the humidex is expected to exceed 40°C for two consecutive days.

Extreme heat can cause dehydration, heat exhaustion, heat stroke and even death. OPH is encouraging residents to check on family, friends and neighbours who may be isolated or more vulnerable to the heat. Seniors, infants, young children, people who are homeless and people taking certain prescription medications for conditions such as Parkinson’s disease and depression are at a greater risk of suffering from heat-related illness. 

During a heat warning, residents and visitors should:


  • Drink plenty of fluids, preferably water and limit or avoid caffeine and alcohol
  • Avoid strenuous physical activity outdoors
  • Avoid direct exposure to the sun and look for shade
  • Spend time in an air-conditioned location such as a shopping mall, local library or community centre
  • Never leave children, the elderly or pets unattended in a car, even with the windows open

Residents and visitors can cool down at City of Ottawa pools, splash pads, wading pools, and community centres as well as Ottawa Public Library branches. Indoor pools are open until 10 p.m. All scheduled swimming times; senior swim, family swim, lane swim, 50-plus swim, woman-only swim, preschool swim, (excluding morning instructional programs) have been converted to open public swims. Ottawa beaches are no longer supervised by lifeguards, so please exercise caution.

In addition, Rainbow Cinemas in the St. Laurent Centre has partnered with OPH to provide reduced ticket rates to help people access air conditioning and to cool down during heat warnings.

High air pollution and UV index levels often occur during hot weather conditions.

People with breathing and heart problems, and parents and caregivers of children, should pay attention to the hourly Air Quality Health Index available at

Check the UV index forecast daily at, or in the local media.

Choose a sunscreen and lip balm with a SPF30 or higher.

For additional information, visit or call Ottawa Public Health Information at 613-580-6744 (TTY: 613-580-9656). You can also connect with us on Facebook, Twitter, Pinterest and Tumblr.


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