Last updated: June 2, 2025
In Grand Canyon Village, understanding the UV Index is vital for protecting your skin from harmful ultraviolet rays. With peak UV levels soaring to 12 during midday, awareness of these levels can significantly help in preventing sunburn and promoting skin health. This beautiful location, characterized by a cold semi-arid climate, presents unique exposure risks, particularly during the summer months. By paying close attention to the UV Index, visitors can enjoy the awe-inspiring landscapes while safeguarding their well-being under the Arizona sun.
As the sun rises, the UV Index begins to climb, peaking dramatically around 12:00 PM when it hits an intense 12, indicating a high risk of harm from unprotected sun exposure. From 7:00 AM with a low 2, it steadily increases, crossing 8 by the afternoon and reaching its zenith at 11:00 AM with a blistering 11. After the midday sun, the index gently tapers off, dropping to 5 by 4:00 PM and ultimately settling back to 1 by 6:00 PM as the day draws to a close. It's crucial to take precautions during those peak hours to safeguard your skin and enjoy the sunshine safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal changes, with high-risk months predominantly from February to August. The UV Index peaks at 12 during the summer months of May, June, July, and August, categorizing exposure as extreme and resulting in a burn time of just 10 minutes. Visitors and residents are strongly advised to take protective measures during these times, such as wearing sunscreen, protective clothing, and seeking shade during peak hours. Conversely, January, November, and December present moderate UV levels (Index 4-5), where burn times extend to 30 minutes, indicating a lower risk of UV-related harm. As seasons transition, awareness and proactive sun safety become crucial in protecting skin 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 |
| Grand Canyon Village | 4 | 7 | 9 | 11 | 12 | 12 | 12 | 11 | 10 | 8 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |