Most dogs are comfortable at temperatures between 15-25°C, but this is very much dependent on their age, breed, size, coat length, amount of exercise they're engaging in, health and fitness. Is it dangerous to walk your dog on a warm day? Yes, it can be, but it depends on how hot it is and how well your dog copes in warmer weather. Dogs can overheat on hot days, and some dogs can even struggle in warm weather, especially during the midday sun. However, early morning or evening walking, when it’s cooler, should reduce the risk of heatstroke, depending on the temperature. Giving your dog a drink during a walk will help to keep them hydrated and cooler, but heatstroke can still happen, even if they have access to water. If it’s too painful for you to place the back of your hand on the pavement for seven seconds then it’s too painful for your dog to walk on. Heatstroke can happen within minutes, which is why it's incredibly important to make sure your dog isn’t too hot when you’re walking them during warm weather.