Last updated: June 2, 2025
The UV Index is a vital tool for residents of Asansol, India, as it provides essential information about the intensity of ultraviolet (UV) radiation from the sun. Understanding UV levels is crucial for preventing sunburn and protecting skin health, particularly in a region characterized by an Aw climate, which often sees high UV exposure. With peak UV Index values soaring to 12 around noon, awareness of these levels can help you make informed decisions about sun safety. By staying vigilant and planning outdoor activities accordingly, you can enjoy the sunshine while minimizing the risks associated with harmful UV rays.
The UV Index paints a vivid picture of sun intensity throughout the day. Starting with a gentle 3 at 7:00 AM, the index swiftly climbs to a peak of 12 by 11:00 AM, marking the height of midday sun exposure. As 12:00 PM rolls around, the value dips slightly to 10, still signaling the need for sun protection. The afternoon brings a gradual decline, with readings of 9 at 1:00 PM and 6 by 2:00 PM, before dropping to a more manageable 4 at 3:00 PM. By 4:00 PM, the UV intensity continues to fade, reaching 2, and then vacates completely by 6:00 PM, when it sits at 0. For sun enthusiasts and those outdoors, the 10:00 AM to 2:00 PM window offers the highest UV exposure to be mindful of.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 6 | high | 25 min |
| 09:00 | 9 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, seasonal UV changes reflect significant variations in the UV Index, which peaks during the summer months. High-risk months occur from March to September, with the highest readings in August (UV Index 13), indicating an extreme risk of harm from unprotected sun exposure, where burn time drops to just 10 minutes. Visitors and residents should take precautions, especially during these months, by seeking shade, wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure during peak hours. As we transition into the cooler months of October to February, UV levels decrease, but it is still important to remain vigilant, as high exposure categories persist. Overall, awareness of the UV Index can significantly aid in minimizing sun-related health risks throughout the year.
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 |
| Asansol | 6 | 7 | 9 | 10 | 11 | 12 | 12 | 13 | 12 | 10 | 7 | 6 |
| 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 |