Last updated: May 3, 2025
Understanding the UV Index is crucial for the residents of Walin, Nepal, where the subtropical highland climate elevates exposure to harmful ultraviolet rays. Awareness of UV levels helps in effectively preventing sunburn and maintaining skin health, allowing you to enjoy outdoor activities while reducing the risk of long-term effects like skin cancer. In Walin, UV levels soar in the late morning and early afternoon, peaking at an alarming 11 between 11 AM and 12 PM, making it essential to protect your skin during these hours when exposure risks are at their highest. Be informed and stay safe under the sun!
The UV Index throughout the day paints a vivid picture of sun exposure risk. Starting with a moderate score of 3 at 7:00 AM, it quickly climbs to a high of 11 between 11:00 AM and 12:00 PM, marking the peak intensity of sunlight. Just before noon, the UV Index reaches its height at 10, where caution is advised for prolonged sun exposure. In the early afternoon, it begins a gradual decline, moving down to 9 by 1:00 PM and tapering off to 4 by 3:00 PM. As the evening approaches, the index diminishes further, dropping to 1 by 5:00 PM, and eventually reaching 0 after 7:00 PM, signaling a safe retreat from the sun's rays. Sun safety is paramount, especially during those prime hours when UV radiation poses the highest threat!
| 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 | 10 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 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 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal variation, peaking during the summer months. High-risk months for UV exposure are from March to September, where the index reaches extreme levels. Specifically, May through July sees the highest values, with a UV Index of 11 to 14 and burn times as low as 10 minutes. Residents and visitors are advised to take precautions during these months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize the risk of skin damage. In contrast, January and December show moderate exposure levels (UV Index of 5), allowing for more extended outdoor activities with less risk, as the burn time increases to 30 minutes. Overall, awareness and proactive sun safety measures are crucial as the UV Index rises throughout the year.
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 UVI | 5 | 6 | 8 | 10 | 10 | 12 | 13 | 12 | 11 | 9 | 7 | 5 |
| Walin | 5 | 6 | 9 | 10 | 11 | 13 | 14 | 13 | 11 | 10 | 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 |