Last updated: May 3, 2025
Understanding the UV Index in Siddharthanagar, Nepal, is vital for ensuring the health and safety of its residents. With an average climate characterized by warm summers and mild winters, Siddharthanagar sees significant UV exposure throughout the year, especially during peak hours when the index can reach levels as high as 10 around noon. Awareness of UV levels can significantly aid in preventing sunburn and protecting long-term skin health. By staying informed and taking appropriate precautions, you can enjoy the beautiful sunny days while safeguarding your skin from the harmful effects of ultraviolet radiation.
The UV Index begins its ascent at 7:00 AM with a low of 2, but by 11:00 AM, it peaks at a striking 10, signaling a high risk for sun exposure. From this peak, the UV levels start to decline, dipping to 8 by 1:00 PM and further down to 6 at 2:00 PM. As the afternoon rolls in, the index continues to fall, reaching 3 by 3:00 PM and dropping to 1 by 5:00 PM, where it remains until sunset. This data highlights the importance of sun protection during the midday hours when UV radiation is most intense. Stay safe and enjoy the sun wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 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 | 6 | high | 25 min |
| 15:00 | 3 | 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, UV Index levels exhibit notable seasonal changes, indicating varying risks for sun exposure. From March to September, the UV Index reaches its peak, categorizing April to September as high-risk months with UV Index values predominantly in the very high to extreme range. Specifically, June and July present the highest risk, with UV Index levels of 12 and 13, during which the burn time reduces to just 10 minutes. Residents and visitors are strongly advised to take precautions during these months, such as seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen frequently. As the year progresses towards October and November, a gradual decline in UV levels signifies a reduction in risk, yet vigilance is still essential, especially in the lingering high exposure months like February and November.
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 |
| Siddharthanagar | 4 | 6 | 8 | 10 | 10 | 12 | 13 | 12 | 11 | 9 | 7 | 5 |
| Birganj UVI | 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 |