Last updated: May 3, 2025
In Alpine, United States, staying informed about the UV Index is essential for protecting your skin and overall health. Understanding UV levels is crucial not only for sunburn prevention, but also for long-term skin wellness, especially in a region where the Dfb climate brings varied exposure risks throughout the year. With peak UV Index readings reaching as high as 11 during midday, residents and visitors alike must be mindful of the sun's intensity, ensuring proper precautions are taken to enjoy the outdoors safely. Whether you’re hiking in the stunning landscapes or engaging in other outdoor activities, knowing the UV forecast helps you make informed choices for your skin's health.
The UVI hourly data reveals a dynamic pattern throughout the day, peaking at 12 PM with a formidable UV Index of 10. As the morning sun rises, the UV Index gradually climbs from a mere 1 at 7 AM to a moderate 3 by 9 AM. The intensity escalates sharply, reaching 8 by 11 AM and hitting its zenith at 11 between 1 PM and 2 PM. Following this peak, there's a noticeable decline, as the index eases to 9 at 3 PM, then gradually drops to 5 by 5 PM, tapering off to 2 by 6 PM before settling back to 1 as evening approaches. This data underscores the importance of sun protection from late morning to early afternoon when UV exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal changes, with notable increases from early spring through summer. March marks the transition to a very high risk of UV exposure, peaking in May and June with an extreme classification where the burn time is as little as 10 minutes. July and August maintain this intensity, emphasizing the importance of sun protection. Visitors and residents should stay vigilant during these high-risk months of March to August, taking precautions such as wearing sunscreen, protective clothing, and seeking shade to minimize the risk of skin damage. As the seasons shift into October and November, UV risks decrease, transitioning back to moderate levels with longer burn times, providing a safer environment for outdoor activities.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chicago UVI | 3 | 4 | 6 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
| Brooklyn UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
| New York City UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
| Alpine | 3 | 5 | 8 | 10 | 11 | 12 | 11 | 11 | 9 | 6 | 4 | 3 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |