Ideally, depending on the weather and your child's activity level, a 1-3-year-old should drink about 5 cups of water daily. An easy way to remember how much a toddler should drink is to add 8 ounces for each year of their life. For example, a one-year-old should have 8 ounces of water, and a two-year-old should have 16 ounces of water, etc. Of course, if they run around a lot on a hot day, they may need a bit more to stay hydrated. Check out our blog to learn more about how much your toddler should drink daily.