Last updated: May 3, 2025
Understanding the UV Index is essential for residents of Twisp, Washington, especially given the area's unique climate characteristics. This region, classified as Dsb, experiences varying levels of UV radiation throughout the day, peaking at 9 during midday hours. Being aware of these UV levels is crucial for preventing sunburns and maintaining skin health, as overexposure can lead to serious long-term effects. With Twisp's distinct seasonal patterns and outdoor recreational opportunities, keeping an eye on the UV Index empowers locals and visitors alike to enjoy the sun safely while protecting their skin from harmful rays.
The UV Index shows a distinct daily rhythm, peaking at 1 PM with a significant value of 9—a strong indicator for sun exposure. As the day unfolds, early morning starts at a comfortable 1 at 7 AM, gradually climbing to 2 by 8 AM. By 10 AM, it reaches 5, and just before noon, it surges to 8. The afternoon sees a slight dip from 9 at 1 PM to 7 by 3 PM, before slowly descending back to 1 by 7 PM. This data highlights the importance of sun protection during those peak hours, especially from 11 AM to 2 PM. Remember to stay safe and enjoy the sunshine!
| 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 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels vary significantly, indicating changing sun exposure risks. The months of May through August are particularly notable, as they experience a very high UV Index of 9, with a burn time of only 15 minutes—marking them as high-risk months for sunburn. In contrast, the winter months of January and December show a low UV Index of 2, allowing up to 45 minutes of exposure with minimal risk. As spring transitions into summer, it's vital for both visitors and residents to take precautions during the high-risk months: wear sunscreen, seek shade during peak hours, and consider protective clothing to reduce UV exposure. As the season shifts into fall and winter, the risk decreases, but staying informed remains essential year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Twisp | 2 | 4 | 6 | 7 | 9 | 9 | 9 | 9 | 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 |