Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Rockport, United States, where the climate offers both beautiful sunny days and potential skin health risks. With peak UV levels reaching as high as 10 around midday, awareness of these fluctuations is essential to prevent sunburns and long-term skin damage. Rockport's Dfb climate borders on a humid continental zone, presenting unique UV exposure challenges, especially during the summer months. By staying informed about the UV Index, you can take proactive measures to protect your skin and enjoy all that Rockport has to offer safely.
The UV Index reaches its peak during the midday hours, showcasing a vibrant sun's intensity. Starting with a gentle 1 at 07:00, it gradually escalates to 3 by 08:00. As the day progresses, the index soars to 5 at 09:00, hitting 7 by 10:00. The real highlight occurs between 11:00 and 13:00, when it peaks at an impressive 10, urging everyone to take caution. Following this, the index begins a slow descent, dropping to 9 at 14:00 and gradually declining to 5 by 16:00. By 18:00, it reduces to 2, finally settling back at 1 by 19:00. This hourly data highlights the importance of sun safety during the peak hours of the day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | 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 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index varies significantly, indicating changing levels of sun exposure risk. January and December have the lowest UV Index at 2, categorized as low, with a burn time of 45 minutes, making them relatively safe months for sun exposure. As spring approaches, February and March see an increase to a moderate 4 and 5 respectively, where care is still needed, with burn times reducing to 30 minutes. The risk escalates in April with a high 7, leading into the peak months of May, June, and July, where the UV Index reaches a 10 and stays at 9, classified as very high, making sunburn possible in as little as 15 minutes. August maintains this high UV Index, while September and October show a slight decline to 7 and 6, categorized as high, with burn times increasing to 25 minutes. Finally, November returns to a moderate 3, urging continued skin protection. Visitors and residents are advised to take precautions during the high-risk months of May through September, including seeking shade, wearing protective clothing, and applying sunscreen regularly to reduce the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rockport | 2 | 4 | 5 | 7 | 9 | 10 | 9 | 9 | 7 | 6 | 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 |