Last updated: August 1, 2025
In Sublette, United States, awareness of the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. Understanding UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With a BSk climate characterized by sunny summers and significant UV exposure, particularly during peak hours—where values can soar to as high as 11 around noon and early afternoon—it's vital to stay informed and take protective measures. Whether you're enjoying outdoor activities or simply soaking up the sun, being aware of the UV Index can help you enjoy safe, sun-filled days in Sublette.
The UV Index begins its day gently, peaking at a maximum of 1 at 7:00 AM and holding steady until 9:00 AM when it climbs to 2. As the sun reaches its zenith, the index surges dramatically, hitting 5 by 10:00 AM and soaring to its peak of 11 at both 1:00 PM and 2:00 PM. This period marks the hours where sun protection is critical. As the afternoon progresses, the index gradually descends, dropping to 10 by 3:00 PM, then tapering off to 8 at 4:00 PM, and continuing its decline until reaching 2 by 7:00 PM. It's a vivid reminder that while the sun graces us with its warmth, vigilance against UV exposure is essential during peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, indicating varying risks of sun exposure. January sees a moderate UV Index of 4, but this rises sharply to 11 in May and June, marking the high-risk months for sunburn and skin damage. April and July follow closely with their respective UV levels of 10 and 12. Visitors and residents during these peak months should take precautions by seeking shade, wearing protective clothing, and regularly applying sunscreen, as the burn time decreases to as little as 10 minutes in extreme conditions. As the year progresses to October, the risk lowers, dropping back to a high exposure level, while November and December return to moderate indexes of 5 and 3 respectively, allowing for safer 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 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Sublette | 4 | 6 | 7 | 10 | 11 | 12 | 12 | 10 | 9 | 7 | 5 | 3 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |