Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Okanogan, United States, where the climate can expose you to varying levels of ultraviolet radiation. Being informed about UV levels is essential for preventing sunburn and maintaining long-term skin health. On sunny days, the UV Index can reach as high as 9 around midday, indicating a risk of harm from unprotected sun exposure. Given Okanogan's unique weather patterns, particularly during summer months, it's important to stay vigilant and protect your skin from potential damage while enjoying the outdoors.
As the sun rises, the UV Index gradually climbs, starting at a gentle 1 at 07:00. By 09:00, it reaches 4, indicating it's time to take protective measures. The afternoon brings peak intensity, with the UV Index soaring to a striking 9 at noon, where it remains steady until 14:00. This strong level of UV radiation highlights the importance of sun safety during these hours. As the day progresses, the index begins to dip, settling at 5 by 16:00 and tapering off to 1 by 19:00, making the early evening hours much safer for outdoor activities. Be vigilant and protect your skin during peak hours!
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | 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, with the most intense exposure occurring during the summer months. January and December see low UV levels (Index 2), indicating a burn time of 45 minutes, thereby posing minimal risk. As the year progresses, both February and March bring moderate levels (Index 4-5), with shorter burn times of 30 minutes. April marks the transition to high exposure (Index 6), and this escalates notably in May and June, reaching very high levels (Index 8-9) with a burn time of just 15 minutes—indicative of high risk. July and August maintain this peak, before September signals a slight decrease to high exposure (Index 7) and a burn time of 25 minutes. Moving into autumn, October and November revert to moderate levels (Index 3-5), allowing for a burn time of 30 minutes, while January returns to the safety of low UV exposure. Visitors and residents should take extra precautions during the high-risk months of May through August, such as applying sunscreen, wearing protective clothing, and seeking shade, to minimize the risk of UV-related harm.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Okanogan | 2 | 4 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| 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 |