Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Nangavalli, India, particularly given its Aw climate zone, which exposes inhabitants to varying levels of ultraviolet radiation throughout the year. The UV Index is a vital tool for protecting your skin health and preventing painful sunburns, especially with peak readings reaching as high as 13 around midday. As the sun climbs higher in the sky, awareness of UV levels becomes increasingly important, helping you make informed decisions about sun protection to enjoy the beautiful outdoors safely. So, whether you're spending the day outdoors or simply enjoying your backyard, stay informed about the UV Index and take the necessary precautions to shield yourself from harmful rays.
As the day unfolds, the UV Index rises significantly, peaking at 13 between 11:00 AM and 12:00 PM—a clear indicator for sun safety. Early risers at 7:00 AM face a mild 2, but by 9:00 AM, the intensity escalates to 7, urging caution for outdoor activities. Just past mid-morning, a sharp climb to 10 at 10:00 AM signals a high risk of harm from unprotected sun exposure. Gradually tapering off after noon, the UV levels drop to 5 by 3:00 PM, before winding down to 1 by 5:00 PM and fading to zero as evening approaches. Always stay vigilant during those peak hours to protect your skin!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | 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 notable seasonal changes, peaking in the spring and summer months. High-risk months for UV exposure are March through October, when the index consistently registers in the extremes, particularly hitting 15 in April and 13 in July, August, and September. During these months, the burn time is reduced to as little as 10 minutes, emphasizing the need for precautions. Residents and visitors are advised to protect themselves by applying sunscreen, wearing protective clothing, and seeking shade during peak UV hours, especially between 10 AM and 4 PM. While January and February have very high exposure risks, the UV Index decreases in the fall and winter, declining to 10 in November and 9 in December, yet vigilance is still warranted to prevent sunburn.
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 |
| Nangavalli | 10 | 12 | 13 | 15 | 12 | 12 | 13 | 13 | 13 | 12 | 10 | 9 |
| Bengaluru UVI | 11 | 13 | 13 | 14 | 13 | 14 | 14 | 14 | 14 | 12 | 11 | 10 |