Last updated: June 2, 2025
Being aware of the UV Index in Birganj, Nepal is crucial for safeguarding your skin and overall health under the sun's rays. With typical UV levels soaring to a maximum of 12 around noon, understanding these fluctuations is essential for effective sunburn prevention and long-term skin health. Birganj experiences a Cwa climate, characterized by hot summers and a significant presence of sunlight, increasing exposure risks throughout the day. By staying informed about UV levels, you can take proactive measures to protect yourself and enjoy the outdoors safely.
The UV Index throughout the day presents a fascinating journey of sunlight exposure. Early risers will notice a gentle start at 3 by 7:00 AM, quickly escalating to a more intense 5 by 8:00 AM. As the sun climbs higher, the index peaks dramatically at 11 by 10:00 AM and reaches its zenith of 12 at 11:00 AM, signaling the most potent UV rays of the day. The afternoon sees a gradual decline, with the index dropping to 9 at 1:00 PM and further to 7 at 2:00 PM, before easing to 4 by 3:00 PM. As the evening approaches, protection from UV exposure becomes less critical, with values tapering to 1 by 5:00 PM, and finally settling at 0 by 7:00 PM, inviting a safe end to the day’s sun-soaked adventures. Sun safety is paramount during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | 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 |
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 |