#Many parents believe sun protection is a "summer-only" task. With the arrival of September and the gradual cooler weather, many mistakenly assume that the sun is no longer as strong and that children no longer need extra protection.

But in reality, UV rays in late summer and early autumn remain very strong, even approaching summer levels in some areas. For children with delicate skin, sun protection is not a seasonal issue; it's a year-round health concern.

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UV rays exist year-round and don't "disappear" in autumn.

* Ultraviolet (UV) intensity isn't completely tied to temperature. Even when temperatures drop, UV levels can remain high.
* The World Health Organization (WHO) states that "sun protection measures are necessary when the Ultraviolet Index (UVI) reaches 3 or above." In many areas in September (such as North America, Europe, and East Asia), the UVI is still in the mid-to-high range of 5-7.
* Data from the U.S. Environmental Protection Agency (EPA) indicates that UV exposure in early autumn can still cause skin damage in children, especially during periods of high outdoor activity (10:00 AM to 3:00 PM).

👉 Even in autumn, UV rays still pose a threat to children's skin.

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Children's skin is more fragile than adults'.

* Thinner stratum corneum: Children's skin barrier is not fully developed, making them less able to protect against external irritants and UV rays.

* Lower melanin production: Melanin is the body's natural shield against UV rays, making children more susceptible to sunburn and redness than adults.
* Significant cumulative effects: Studies show that "repeated sunburns in childhood significantly increase the risk of melanoma and other skin cancers later in life" (American Cancer Society, 2023).

👉 Children are not "mini-adults"; they require stronger physical protection.

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Why is sunscreen not enough? Physical sun protection is more critical.

* Limitations of sunscreen: Regular reapplication is required, and even application is difficult to ensure. Some chemical ingredients may be irritating to infants and young children.
* Advantages of physical sun protection: UPF 50+ sun-protective clothing blocks over 98% of harmful UV rays, does not require frequent reapplication, and is suitable for extended outdoor activities.
* Best practice: Combine sun-protective clothing, a wide-brimmed hat, and safe sunscreen for multi-layered protection.

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Practical sun protection tips for late summer and early autumn

1. Managing time outdoors: Avoid strong UV rays between 10:00 AM and 3:00 PM.

2. Comprehensive physical protection: Choose a UPF 50+ swimsuit and a sun hat, covering easily overlooked areas like arms, back, and neck.

3. Topical sunscreen: Use a child-specific sunscreen on exposed areas such as hands, feet, and face.

4. After-sun care: Hydrate and cool down promptly, and avoid using irritating products containing alcohol.

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Upandfast New Product Recommendations 🌊

Even in this transitional season, scientific sun protection remains crucial. Upandfast's new products this season are especially suitable for babies and children:

* Baby Girls' Recyclable Swimsuit Set: Eco-friendly fabric, half-zipper back design, long sleeves, and a matching sun hat, providing comprehensive UPF50+ protection.

* Boys' UPF50+ Beach Shorts: Quick-drying and breathable, comfortable and safe for both water and beach play.

These new products are now available on our official website, allowing parents to safely enjoy outdoor activities with their children in late summer and early fall.

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Autumn is approaching, but UV rays don't disappear with the drop in temperature. "Children's sun protection is a year-round health issue."

Instead of worrying about your child getting sunburned, it's better to prepare professional sun protection equipment in advance so they can grow freely and safely in the sun.

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## References/Appendices

1. World Health Organization. *UV radiation and health*. (2023).
2. U.S. Environmental Protection Agency (EPA). *UV Index*. (2024).
3. American Cancer Society. *Skin Cancer Prevention and Early Detection*. (2023).
4. Washington Post. *Record heat wave hits Pacific Northwest and Canada*. (2025).
5. Reuters. *WMO warns La Niña won’t erase global warming trend*. (2025).