Last updated: May 3, 2025
In Birganj, Nepal, understanding the UV Index is crucial for protecting your skin and overall health. With high UV levels peaking at 10 around midday, awareness of these numbers can help you take necessary precautions against sunburn and long-term skin damage. Birganj's Cwa climate, characterized by its hot summers and mild winters, often leads to increased UV exposure, especially during the sunniest hours. By staying informed about the UV Index, residents and visitors can enjoy the outdoors while minimizing health risks associated with intense sunlight.
The UV Index reveals a captivating daily rhythm in sunlight intensity. Starting at 3 at 07:00, the day begins gently, but as the sun rises higher, so does the UV Index, peaking at a striking 10 from 11:00 to 12:00. This is the time when sun protection is crucial, as the intensity drops back to 8 at 13:00. By mid-afternoon, the UV levels begin to decline, falling to 5 by 14:00 and decreasing further to 3 by 15:00. As the evening sets in, the UV Index diminishes gradually to 1 at 17:00 and finally reaches 0 by 18:00, marking the end of a sun-soaked day. For those enjoying the outdoors, it's essential to stay vigilant around midday when the sun's power peaks!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | 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, the UV Index displays significant seasonal variation, with the highest levels observed during the summer months. From June to September, the UV Index reaches its peak, classified as extreme (12-13), resulting in an acute burn time of just 10 minutes. This period marks the high-risk months for sun exposure, where individuals are strongly advised to take protective measures to prevent skin damage. As spring approaches, the UV Index also escalates, with March to May categorized as very high (8-10), necessitating precautionary actions. Conversely, the UV Index lowers during the winter months, returning to a moderate level in January and December (UV Index 5), with a safer burn time of 30 minutes. Visitors and residents are encouraged to remain vigilant, particularly from March to September, by utilizing sunscreen, wearing protective clothing, and seeking shade during peak hours to safeguard their skin health.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Biratnagar UVI | 5 | 6 | 8 | 9 | 10 | 11 | 13 | 12 | 12 | 9 | 7 | 5 |
| Birganj | 5 | 6 | 8 | 10 | 10 | 12 | 13 | 12 | 11 | 9 | 7 | 5 |
| Patan UVI | 5 | 7 | 9 | 11 | 11 | 13 | 14 | 13 | 12 | 10 | 7 | 5 |
| Kathmandu UVI | 5 | 7 | 9 | 11 | 11 | 13 | 14 | 13 | 12 | 10 | 7 | 5 |
| Pokhara UVI | 7 | 9 | 12 | 13 | 14 | 15 | 15 | 15 | 14 | 12 | 8 | 6 |