Last updated: July 2, 2025
Understanding the UV Index in Madras, United States is essential for safeguarding your skin and overall health. With high levels of ultraviolet radiation peaking around midday—especially with readings reaching up to 10—it's crucial to be vigilant about sun exposure to prevent sunburn and long-term skin damage. Madras, known for its Csb climate features mild winters and warm summers, but its UV exposure can be deceptively high, particularly during midday hours. Awareness of daily UV levels can help residents and visitors make informed decisions about outdoor activities, ensuring a healthy balance between enjoying the sunshine and protecting their skin.
The UV Index throughout the day showcases a notable rise, peaking at an impressive 10 between 1 PM and 2 PM. Starting from a mild 1 at 7 AM, sun lovers can expect a steady ascent, reaching 9 by noon. As the afternoon sun intensifies, the index holds a robust 10, signaling extreme UV exposure, before gradually tapering off to 4 by 5 PM and descending further to 1 by 7 PM. It's a classic reminder to stay protected during those peak hours, especially between 11 AM and 3 PM, when the sun's rays are most potent. Enjoy the sunshine, but don’t forget your sunscreen!
| 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 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index varies significantly throughout the year, demonstrating a clear seasonal pattern. High-risk months for UV exposure occur from March to September, where the index peaks at 10 in May, June, and July, categorized as very high with a burn time of only 15 minutes. April begins the high-risk period, followed by August and September, both registering at 9 and 8 respectively. In contrast, January, February, October, November, and December present lower risk levels, with the index falling between 2 and 4. To ensure health and safety, visitors and residents are strongly advised to take precautions, such as using sunscreen and protective clothing, particularly during the peak months when UV exposure poses significant risks.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Madras | 2 | 4 | 6 | 7 | 10 | 10 | 10 | 9 | 8 | 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 |