What every pet owner should know during heat waves
A dog drinks water at a public fountain in Incheon, May 4, 2020. Newsis
Summer walks at high temperatures can be dangerous — or even deadly — for your furry friend
With intense summer temperatures gripping much of Korea, pet owners are being urged to take extra precautions as cases of heatstroke in dogs rise sharply.
One such case occurred in Seoul, where Kim Yeon-woo, a 26-year-old office worker, had to rush her dog to an emergency animal clinic the day after a walk. The dog had been vomiting and suffering from diarrhea throughout the night. The diagnosis was heatstroke caused by prolonged sun exposure, and the dog was hospitalized to lower its body temperature and inflammation levels.
Experts warn that dogs, who are closer to the ground and unable to regulate body temperature as effectively as humans, are particularly vulnerable during extreme heat. Asphalt and concrete surfaces can absorb and radiate heat intensely, with ground temperatures often exceeding 50 degrees even when air temperatures hover around 35 degrees. In fact, August 2024 data from the Korea Meteorological Administration showed a surface temperature of 45.5 degrees at street level, compared to just 34.3 degrees at 1.5 meters above ground.
What causes heatstroke in dogs?
Heatstroke occurs when a dog’s body temperature remains too high for too long and it can no longer cool itself down. Without intervention, this can result in organ damage or even death. It is considered the most severe heat-related illness and is classified as a veterinary emergency.
Dogs are at risk of heatstroke even in weather that may seem moderate. Temperatures above 32 degrees are considered dangerous for all dogs, regardless of size or breed. At 28 to 31 degrees, large dogs, puppies, flat-faced breeds (such as pugs and bulldogs) and overweight dogs face a high risk. Even at 20 to 23 degrees, intense physical activity can trigger heat-related illness, especially in vulnerable breeds.
Korea Times graphic by Youn Ye-jin
Warning signs and emergency steps
Early signs of heatstroke in dogs include heavy panting, excessive drooling and sticky saliva — all attempts to cool the body. A dog’s normal body temperature ranges from 38 degrees to 39.1 degrees. If it rises above 39.5 degrees, immediate action is required. Other symptoms may include lethargy, vomiting, diarrhea, rapid heart rate, reddened gums and tongue, and, in severe cases, collapse or unconsciousness.
If heatstroke is suspected, owners should move the dog to a cool, shaded area or into an air-conditioned space. Offer fresh water slowly and use a damp towel to cool the body. Avoid ice-cold water or ice baths, which can cause shock. If symptoms persist or worsen, veterinary attention should be sought without delay.
A dog cools off while passing by a fountain at Gwanghwamun Square in Jongno District, Seoul, Aug. 21, 2022. Newsis
How to prevent heatstroke in dogs
Prevention starts with timing: Avoid walks during peak heat hours and instead opt for early mornings or late evenings. Use cooling gear such as vests or scarves designed for pets, and always ensure access to shade and fresh water. On hot days, steer clear of asphalt or concrete surfaces — if it’s too hot for bare feet, it’s too hot for paws. Grass or dirt trails are safer alternatives.
Indoors, maintain a comfortable temperature using fans or air conditioning, and monitor your pet for any signs of distress. Ultimately, a dog’s safety in summer heat depends on a watchful and responsive owner.
When in doubt, seek help, experts say. Acting quickly can mean the difference between a full recovery and a life-threatening emergency.
Youn Ye-jin is a Korea Times intern.