Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Hiranagar, India, especially given its Cwa climate, which features hot summers and varying UV exposure levels throughout the day. With peak UV indices soaring to 12 during midday hours, awareness of these levels is essential for preventing sunburn and protecting skin health. As we navigate life in this sun-drenched region, being informed about UV risks helps us take the necessary precautions to enjoy the outdoors safely, ensuring that our time under the sun remains enjoyable and harm-free.
The UV index shows a striking pattern throughout the day, starting off at a mild 2 at 07:00 and gradually climbing to a peak of 12 by noon. As the morning warms, it reaches an energetic 9 at 10:00, then surges to its maximum intensity of 11 at 11:00 before hitting 12 at 12:00, urging sunbathers and outdoor enthusiasts to take precautions. The afternoon sees a gentle decline, with the UV index slipping back to 9 at 14:00 before tapering to 6 and finally dropping to 2 by 17:00. As night approaches, the UV exposure diminishes dramatically, resting at 0 by 19:00. Embrace the sunshine early, but remember to seek shade and protect your skin during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV levels vary significantly, with the highest risks occurring during the spring and summer months. March to August marks a period of very high to extreme UV exposure, with May and July seeing the peak UV Index of 11 and 12, respectively, where the burn time drops to just 10 minutes. During these months, it is crucial for visitors and residents to take protective measures, such as wearing sunscreen, sunglasses, and protective clothing, particularly during midday hours. April and June also exhibit very high levels, with burn times of only 15 minutes. Transitioning into September and October, the UV Index decreases but remains high enough to warrant caution, with a burn time of 25 minutes in October. The high-risk months are therefore from March through August, requiring extra vigilance to avoid harmful effects of sun exposure. As the UV Index returns to moderate levels in November and December, precautions remain advisable during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hiranagar | 4 | 5 | 9 | 10 | 11 | 10 | 12 | 11 | 8 | 7 | 5 | 4 |
| 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 |