Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Holland, United States, where the climate can expose you to varying levels of ultraviolet radiation. As a Dfb climate zone, Holland experiences distinct seasonal changes, making it essential to be mindful of your skin health throughout the year. Awareness of UV levels is vital not only for preventing painful sunburns but also for safeguarding against long-term skin damage. With peak UV Index readings reaching as high as 9 during midday hours, knowing when to seek shade or apply sunscreen can make all the difference in enjoying the beautiful outdoors while protecting your skin. Stay informed and keep your skin safe!
Throughout the day, the UV Index displays a dynamic progression that's crucial for sun safety. Starting at a low 1 at 7:00 AM, it gradually ascends, reaching 2 by 8:00 AM. As the sun climbs higher, the index peaks at 9 by 1:00 PM, marking the time for heightened caution. From this zenith, it gradually declines: 8 at 2:00 PM, down to 6 by 3:00 PM, and further softening to 3 by 5:00 PM. By evening, the index settles back at 2 at 6:00 PM, and finally returns to 1 as the sun sets at 7:00 PM. It's imperative to protect your skin during the peak hours, especially from 10:00 AM to 2:00 PM, when the UV rays are most intense.
| 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 | 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 | 6 | high | 25 min |
| 16:00 | 4 | 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 exposure varies significantly, with the highest risk occurring during the summer months of May through August. During this period, the UV Index reaches a peak of 9, classified as very high, with a minimal burn time of just 15 minutes. Conversely, the UV Index is at its lowest in January and December at 2, indicating a low risk of harm from sun exposure, allowing for a burn time of 45 minutes. April and September mark transitional months where the UV Index is high at 7, prompting caution with a burn time of 25 minutes. To protect against harmful UV radiation, it is crucial for both visitors and residents to take appropriate precautions, particularly from May to August, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Holland | 2 | 4 | 5 | 7 | 9 | 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 |