Summer Sun Safety: Why Every Child Needs Sunblock – and How to Choose the Right One

Protect your child’s skin this summer with expert tips from Miami Pediatrics. Learn how to apply sunblock for all ages, the meaning of SPF, and which sunscreens are safest for kids.

As the school year winds down and summer break begins, families across South Florida are heading outdoors for beach days, pool parties, summer camps, and playground adventures. But with all this extra fun in the sun comes the need for an essential health habit: daily sun protection.

At Miami Pediatrics, we’re passionate about helping families keep their children safe and healthy year-round. One of the most important – and often overlooked – summer safety tools is sunblock. Here's everything parents need to know to protect their children from harmful UV (ultraviolet) rays this summer and beyond.

Why Child Sunblock Matters – Especially in South Florida

Children’s skin is more delicate and vulnerable to sun damage than adults'. Even one bad sunburn during childhood can double the risk of skin cancer later in life, including melanoma. In sunny climates like Miami, UV exposure is a year-round concern, but especially critical in the summer months when kids are outside more often and for longer periods. If possible, avoid spending extended time outside between 10:00am and 4:00pm when the sun's UV rays are the strongest.

What Does SPF Mean?

SPF stands for Sun Protection Factor. It measures how well a sunscreen protects against UVB rays, which are the primary cause of sunburn and contribute to skin cancer.

• Chose an SPF factor between 15 and 50.

• SPF 30 blocks about 97% of UVB rays

While higher SPFs offer slightly more protection, no sunscreen blocks 100% of UV rays. More important than the SPF number is using the product correctly and reapplying every two hours – or more frequently if swimming or sweating.

How to Apply Sunblock for Different Ages

Infants under 6 months

• Avoid direct sun exposure entirely. Dress babies in lightweight or UPF labeled (ultraviolet protection factor) clothing that covers arms and legs, and use hats with wide brims.

• If sun exposure is unavoidable, a small amount of mineral-based sunscreen (like zinc oxide) may be applied to exposed skin, such as the cheeks or back of the hands. Try to avoid any body parts that will end up in a baby's mouth and avoid around the eyes. If a baby does rub sunscreen into their eyes, flush them gently with cold water.

Babies and toddlers (6 months – 2 years)

• Use broad-spectrum, mineral-based sunscreens with SPF 30-50.

• Apply 15–30 minutes before sun exposure, and reapply every 2 hours.

• Make application fun – try a “sunscreen song”, a powder brush applicator like that for make up, or let your toddler help apply it to a toy first!

Young children (3–8 years)

• Choose a lotion-based sunscreen over sprays for better coverage and reduced inhalation risk. Use a stick on the face which is quick to apply.

• Teach kids how to apply sunscreen themselves (with supervision), helping to instill lifelong healthy habits.

• Don’t forget commonly missed spots like the ears, neck, tops of the feet, and scalp near the part line. Most people use too little sunscreen, be sure to use a generous amount.

Tweens and Teens

• This age group is the most likely to skip sun protection. Empower them by:

  • Letting them choose their favorite sunscreen brands.

  • Highlighting the cosmetic benefits of sunscreen (preventing premature aging, spots, acne discoloration).

  • Using tinted or matte-finish mineral sunscreens that don’t leave a white cast.

  • Keeping convenient stick or spray formats in their sports bags or beach kits.

Best Types of Sunscreen for Kids: What to Look For

Sunscreen labeled Broad-Spectrum protects against both UVB and UVA rays.

Mineral (Physical) Sunscreens - look for zinc oxide or titanium dioxide as active ingredients. These sit on top of the skin and reflect UV rays, making them less irritating and ideal for sensitive skin.

Water-Resistant Formulas are especially important for kids who are swimming or sweating.

Fragrance-Free and Hypoallergenic are used to minimize the risk of irritation or allergic reactions.

What to Avoid in Sunscreens for Children

Oxybenzone and Octinoxate These chemical filters may cause skin irritation, may have minor hormonal effects, and are being banned in some areas due to environmental concerns.

Spray Sunscreens (especially for young kids) While convenient, they’re harder to apply evenly and pose an inhalation risk. If using a spray, always apply in a well-ventilated area and rub it in thoroughly.

High Fragrance or Tinted Products (in young children) Added dyes and fragrances can cause allergic reactions in children with sensitive skin types.

Make Sun Safety a Family Routine

• Set a timer to reapply sunscreen every 2 hours.

• Pack sun protection essentials in every bag: hats, sunglasses, and sunscreen.

• Model good habits! When kids see their parents using sunscreen, they’re more likely to do the same.

Final Thoughts from Miami Pediatrics

The sun is strong – but your child’s skin can be stronger with the right protection. At Miami Pediatrics, we encourage all families to make sunscreen use part of their daily routine during the summer and throughout the year.

If you have questions about which sunblock is best for your child, or if you notice any unusual skin changes, don't hesitate to schedule a visit with one of our pediatricians. We're here to keep your family healthy, happy, and sun-safe!

Call us at (305) 868-5181 or visit www.miamipediatrics.com to schedule your next appointment.