Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Mancos, United States, where the high altitude and sunny climate can elevate sun exposure risks. With UV levels often peaking at 11 midday, being informed about these measurements helps in taking essential steps for sunburn prevention and maintaining skin health. Mancos falls within a Dsb climate zone, characterized by warm summers and significant sunlight, making it vital for everyone to monitor UV levels to enjoy outdoor activities safely and protect their skin from harmful rays. With a daily UV Index that varies significantly throughout the day, awareness can be your first line of defense against potential damage.
The UV Index rises sharply as the day unfolds, starting gently at 1 by 7:00 AM. As the sun climbs higher, it reaches 2 by 8:00 AM and then jumps to 4 by 9:00 AM. The intensity peaks around midday, hitting a striking 11 at 12:00 PM, followed closely by a maximum of 12 from 1:00 PM to 2:00 PM. In the afternoon, the index begins to decline, dropping to 10 by 3:00 PM and further down to 5 by 5:00 PM. As daylight wanes, the value lowers to 1 by 7:00 PM, indicating a rapid decrease in UV exposure. This cyclical pattern highlights the importance of sun protection during peak hours, especially between 11:00 AM and 2:00 PM when the UV Index is highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | 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 |
Throughout the year, the UV Index exhibits significant seasonal changes, peaking during the summer months. High-risk months for UV exposure include March through August, with the highest values recorded in June (UV Index 13) and July (UV Index 12), classified as extreme exposure, allowing only 10 minutes of burn time with no protection. As spring transitions to summer, caution should be exercised, especially in April (UV Index 11) and May (UV Index 12), where exposure is still deemed extreme. In contrast, the UV levels decrease significantly in the fall and winter months, dropping to a moderate level in December (UV Index 4). It is advisable for visitors and residents to take protective measures, such as wearing sunscreen, hats, and sunglasses, particularly from March through August, to mitigate the risks associated with high UV exposure.
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 |
| Mancos | 5 | 7 | 9 | 11 | 12 | 13 | 12 | 11 | 10 | 8 | 6 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |