Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Summit, United States, where the climate can lead to significant sun exposure. With UV levels often peaking at 12 during midday, being aware of the UV Index not only helps prevent painful sunburns but also supports long-term skin health. Whether you're enjoying outdoor activities in the beautiful, semi-arid climate of Summit or simply soaking in the sun, staying informed about UV risks can make all the difference in safeguarding your skin and overall well-being.
The UV Index today showcases a dynamic pattern, starting off gently with a maximum of 1 at 7:00 AM. As the day progresses, the intensity rises, peaking at an impressive 12 between 12:00 PM and 1:00 PM—the moment when sun safety becomes paramount. Just before noon, the index hits 11, inviting sun-seekers to enjoy the warmth but reminding them to stay protected. After its zenith, the index gradually declines, dropping to 10 at 2:00 PM, and continues to decrease throughout the afternoon and evening, falling to 1 by 7:00 PM. This daily UV cycle highlights the importance of being mindful around midday when UV exposure is at its highest. Remember to apply sunscreen and wear protective gear during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure levels vary significantly, with the most intense months being March through September. During this period, particularly from April to September, the UV Index reaches extreme levels (11-13), corresponding to a burn time of just 10 minutes. February marks the beginning of the high-risk season with an Index of 7, while the months of October and November see a gradual decrease, falling back to moderate and high exposure categories, respectively. Visitors and residents should be particularly cautious during the summer months, adopting protective measures such as wearing sunscreen, protective clothing, and seeking shade, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. By staying informed about these seasonal changes, individuals can better protect their skin and overall health.
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 |
| 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 |
| Summit | 5 | 7 | 10 | 11 | 12 | 13 | 12 | 12 | 11 | 8 | 6 | 5 |