The ideal water temperature for bathing a dog is typically lukewarm, between 100°F to 102°F (approximately 38°C to 39°C). This temperature is warm enough to be comfortable for most dogs without being too hot or too cold. However, it's essential to consider the individual preferences of your dog, as some dogs may prefer slightly warmer or cooler water.
Always test the water temperature before bathing your dog to ensure it's comfortable. You can use a bath thermometer or gauge the water temperature with your hand. Make sure the water is not too hot to avoid burning or discomfort, and not too cold to prevent your dog from feeling anxious or stressed during the bath.
Keep in mind that some dogs may have specific needs or medical conditions that affect their sensitivity to water temperature. If you have any concerns about your dog's health or preferences, it's always best to consult with your veterinarian.