July 2nd, 2025 / 0 Comments

One of the most common – and preventable – issues I see as a pediatrician during the summer months is children with dehydration. Kids are often outside for longer stretches enjoying sports, camps and backyard play.
Sunshine and fresh air are wonderful and important for childhood health. But without drinking enough water, the heat, humidity and increased physical activity can make kids begin to feel tired and weak and lead to serious complications if not addressed.
Did you know that by the time a child feels thirsty, they are likely already dehydrated? The body loses water throughout the day through urine, sweat and breathing. It is important to replace those fluids by making sure kids drink enough before they feel thirsty and prevent symptoms of dehydration, especially in the hot summer months.
Children and babies are more likely to become dehydrated than adults. Their bodies don’t cool down efficiently and they may not recognize the signs of thirst until they’re already mildly dehydrated. In the heat, children lose fluids more quickly than adults through sweating and faster breathing and heart rates during physical activity.
Some kids can’t or won’t always tell you they are thirsty. One good way to know if a child is drinking enough water is to look at their urine. It should be light yellow to clear like water; if it is dark yellow or orange, this is a sign of dehydration. In fact, no matter how old you are, urine color is a great way to see if you’re drinking enough water.
Getting active kids to keep drinking can be a challenge. Here are some tips to help your entire family build healthy hydration habits.
The amount of water that is best for a child to drink each day depends on their age and any health conditions. General recommendations for daily water intake for children are:
Of course, on hot days or during physical activity, children may need to drink even more. As a rule of thumb, they should be encouraged to drink water before, during, and after outdoor play or exercise.
Babies less than 1 year old generally get all the fluid they need through breast milk or formula and do not need additional water to drink. However, infants older than 6 months can have an extra 4 to 8 ounces of water each day if needed. Check with a primary care provider before giving water to your baby.
Also, be sure to follow package instructions when adding water to formula and only add the necessary amount. Diluting the formula inappropriately can make your baby very sick with an illness called water intoxication and/or keep your baby from gaining weight.
Summer is a magical time for childhood – long days, warm nights and endless play. With a little planning and attention to hydration, your child can enjoy everything the season has to offer safely and healthily. Encourage water breaks, keep those water bottles filled and pay attention to the signs of dehydration. Your pediatrician is around all summer to support you with any concerns. And one more thing as the weather gets hot: Don’t forget to check the back seat of your car and trunks of SUVs for little children before leaving and locking your car.
This blog post originally appeared in Northern Virginia Magazine online.
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