Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Vadakku Viravanallur, India, where the Aw climate brings warm temperatures and significant sun exposure. Awareness of UV levels can help prevent sunburn and promote long-term skin health, making it essential for daily outdoor activities. During peak hours, especially between 10 AM and 1 PM, the UV Index can soar to levels as high as 13, indicating a severe risk of harm from unprotected sun exposure. By staying informed about these conditions, you can safeguard your skin and enjoy the vibrant outdoor lifestyle that Vadakku Viravanallur has to offer.
As the sun rises, the UV Index begins its ascent, starting at a modest 1 at 07:00. By 08:00, it reaches 3, signaling a gradual increase in UV exposure. The peak arrives just before noon, with the index soaring to a maximum of 13 at 12:00, which means it's time to seek shade and apply sunscreen! As the afternoon unfolds, the index gradually declines, dropping to 9 by 14:00, and further easing to 5 at 15:00. As the sun sets and the day cools, the index tapers off to 1 by 17:00 and finally drops to 0 by 19:00. This hourly journey illustrates the critical need for sun protection during peak hours, especially from 10:00 to 13:00, when the sun’s rays are at their most intense. Stay safe and enjoy the sunshine!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences minimal variation throughout the year, consistently remaining in the extreme exposure category from January to October, with burn times averaging around 10 minutes. Notably, March and April peak at a UV Index of 14, making these months particularly high-risk for sun exposure. The UV Index dips slightly in November to 11 and December to 10; however, December still presents a very high exposure category with a burn time of 15 minutes. Visitors and residents are strongly advised to take precautions year-round, particularly during high-risk months, by wearing appropriate sun protection such as broad-spectrum sunscreen, hats, and sunglasses, and seeking shade whenever possible.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Delhi UVI | 5 | 6 | 9 | 10 | 10 | 10 | 12 | 12 | 9 | 8 | 5 | 5 |
| Mumbai UVI | 8 | 9 | 10 | 11 | 11 | 12 | 13 | 13 | 11 | 10 | 7 | 7 |
| Ahmedabad UVI | 7 | 8 | 10 | 12 | 11 | 12 | 13 | 13 | 11 | 10 | 7 | 6 |
| Hyderabad UVI | 10 | 11 | 12 | 11 | 13 | 13 | 15 | 14 | 13 | 11 | 8 | 8 |
| Bengaluru UVI | 11 | 13 | 13 | 14 | 13 | 14 | 14 | 14 | 14 | 12 | 11 | 10 |
| Vadakku Viravanallur | 11 | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 13 | 11 | 10 |