It is normal, but other reasons cannot be ruled out. Hot weather causes your dog's body temperature to rise, which increases the amount of energy the body uses. In addition, high temperature may also affect the dog’s digestive system, slowing down the digestion of food, thereby reducing appetite. In addition, dogs may become less active as they seek cooler areas, further reducing energy expenditure and appetite.

However, although a decrease in appetite is common in the summer, it does not mean that it is completely normal. If your dog has a loss of appetite for several days in a row or is accompanied by other symptoms (such as vomiting, diarrhea, lack of energy, etc.), it may be a sign of illness. In this case, a veterinarian should be consulted immediately.