Last updated: June 2, 2025
In Geneva, United States, being aware of the UV Index is essential for safeguarding your skin health. Understanding UV levels not only helps prevent painful sunburns but also reduces the long-term risk of skin damage and skin cancer. With a humid subtropical climate typical of the region, the UV exposure can soar, particularly during the midday hours when levels peak at 12. Whether you're enjoying outdoor activities or pursuing daily errands, staying informed about the UV Index can empower you to take the necessary precautions against harmful rays and ensure a safer, healthier lifestyle.
The day begins gently with a UV Index of 1 at both 07:00 and 08:00, indicating minimal sun exposure. However, as the clock strikes 09:00, the index rises to 3, signifying a gradual increase in UV intensity. By 10:00, it reaches 5, and the sun takes center stage at 11:00 with a striking 8. The peak arrives at 12:00, soaring to an impressive 10, and continues to climb, hitting its pinnacle with a dazzling 12 at 13:00. As the afternoon unfolds, values begin a slow descent: 11 at 14:00, 10 at 15:00, and then dropping to 7 by 16:00. The evening brings relief, with the index tapering down to 4 at 17:00, 2 at 18:00, and finally returning to a safe 1 by 19:00. Remember to stay protected during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, with the high-risk months spanning from February to September. During this period, the UV Index reaches extremes, peaking at 12 in June and July, signaling a very high to extreme risk of harm from unprotected sun exposure. Notably, April, May, June, July, August, and September all maintain an index of 11 or higher, presenting a burn time of only 10 minutes. As such, it is crucial for visitors and residents to take precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours, particularly from late morning to early afternoon. In contrast, late fall and winter months like November and December exhibit moderate UV levels, allowing for a more extended safe exposure time of 25-30 minutes. However, vigilance remains urged year-round to safeguard against UV damage.
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 |
| Geneva | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 11 | 9 | 7 | 5 |