Dogs don't eat or vomit in summer.

It may be heatstroke, gastroenteritis, or canine distemper.

It may be because the weather is too hot, and putting the dog in a place without ventilation and heat dissipation leads to heatstroke. It is recommended to take it to the hospital in time, because heatstroke for too long may lead to renal failure. Food tends to go bad in summer, and eating stale food may cause vomiting. It is recommended to feed dogs with fresh food, especially meat.

It is also possible that vomiting is not caused by summer, and there may be problems with internal organs. This situation needs to be dealt with as soon as possible. Diseases that cause vomiting in dogs: enteritis, pancreatitis, liver disease and renal failure are the most common vomiting symptoms.