Heatwave in Montreal, Canada: Rise in Heat-Related Emergencies and Deaths
Three fatalities attributed to heat-related causes have been reported by Montreal health authorities since Sunday.
Montreal, Canada, has been grappling with an intense heatwave since Sunday, leading to a surge in heat-related health concerns. Here's a summary of the current situation:
Heat-Related Deaths
As of August 13, 2025, Montreal's public health department has reported three heat-related deaths since the heatwave began on Sunday. Initially, only one death was reported, but the number has risen as the heatwave persists[1][4][5]. The city's health agency attributes these deaths to the extreme heat, given the prolonged high temperatures[1][2].
Heat Stroke Cases
There have been reports of at least two cases of heat stroke. However, the total number of heat-related emergencies, including suspected cases reported by paramedics, is higher. Between Monday and Wednesday, paramedics received 10 to 15 calls for heat stroke per day[4][5].
The total number of 911 calls was significantly higher than usual, with an increase of about 15 to 20% during the heatwave's peak[4].
Temperature Records
Montreal saw record-breaking temperatures, with highs reaching 34°C on Sunday, Monday, and Tuesday. Environment Canada anticipates temperatures to return to more seasonal levels by Thursday[1][4].
Public Health Response
In response, the public health department continues to ask emergency room doctors to report all suspected heat-related deaths or heat strokes. This practice helps in tallying the total number affected while ensuring that reports are confirmed[4][5].
The heatwave underscores the importance of community vigilance and self-care during extreme weather conditions. Public health officials stress the need to monitor family, friends, and oneself to avoid exertion in the heat[1][4].
[1] Montreal Gazette, "Heatwave deaths in Montreal rise to three," Aug. 14, 2025.
[2] CBC News, "Montreal ER doctors asked to report all suspected heat-related deaths," Aug. 14, 2025.
[3] CTV News, "Montreal sees record-breaking temperatures during heatwave," Aug. 14, 2025.
[4] Global News, "Montreal heatwave: Paramedics report rise in 911 calls for heat-related emergencies," Aug. 14, 2025.
[5] Montreal Public Health, "Heatwave Health Alert," Aug. 14, 2025.
