Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of Dunkirk, United States, especially given its Dfa climate which experiences significant sunlight throughout the year. By being aware of UV levels, individuals can take proactive measures to prevent sunburn and maintain skin health, safeguarding themselves against long-term damage. In Dunkirk, UV exposure peaks during midday, with levels reaching a notable 10 at 1 PM and 2 PM. This highlights the importance of monitoring the UV Index to enjoy the outdoors safely while minimizing risks associated with overexposure to the sun. Stay informed, stay protected!
The UV Index throughout the day presents a dynamic portrait of solar intensity. Early morning hours from 7:00 to 8:00 maintain a gentle glow with a consistent level of 1, suggesting low sun exposure risk. As the day progresses, a noticeable shift occurs; by 9:00, the index climbs to 3, marking the onset of stronger rays. The peak is reached at 1:00 PM and 2:00 PM, where the UV Index soars to an intense 10, indicating very high exposure risk, making sun protection vital. Post-peak, from 3:00 PM onward, the index gradually declines, settling to 5 by 5:00 PM and dwindling further to low levels of 1 by 7:00 PM. This data underscores the importance of being sun-smart during those midday hours when UV radiation is strongest.
| 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 | 4 | moderate | 30 min |
| 11:00 | 7 | 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 exposure varies significantly, peaking during late spring and summer months. High-risk months for UV exposure are April through September, where the UV Index frequently reaches levels classified as very high; particularly notable are May, June, and July, when it consistently hits a maximum of 10. Visitors and residents are advised to take precautions during these months, with burn times dramatically reduced to as little as 15 minutes. In contrast, January, February, and November present moderate UV levels, and December has a low index, making sun safety measures less critical during these months. To protect against skin damage, it is essential to wear sunscreen, seek shade, and wear protective clothing, especially between peak months of April and September.
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 |
| Dunkirk | 3 | 5 | 6 | 9 | 10 | 10 | 10 | 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 |