Last updated: May 3, 2025
Understanding the UV Index in Nepalgunj, Nepal, is crucial for protecting your skin and overall health. With the region's Cwa climate experiencing significant sunlight, especially during peak hours, awareness of UV levels can help prevent sunburn and long-term skin issues. At its highest, the UV Index can reach 10 around noon, indicating a very high risk of harm from unprotected sun exposure. Staying informed about these levels is essential for enjoying the outdoors safely and ensuring your skin remains healthy. Always remember to take precautions when the UV Index rises, especially during the sunniest parts of the day!
As the sun rises, the UV Index begins its ascent, starting at a mild 2 at 7:00 AM. By 8:00 AM, it ramps up to 4, signaling the need for some sun protection. The intensity peaks between 10:00 and 12:00, reaching a maximum of 10, meaning it’s crucial to stay shaded and apply sunscreen during these hours. The numbers start to decline after 1:00 PM, with the index dropping to 8 at 1:00 PM, then further easing to 6 at 2:00 PM, and tapering off to 4 by 3:00 PM. As the day winds down, the index falls to 1 by 5:00 PM, and eventually to 0 after sunset, reminding us that while the daytime sun can be intense, the evening cools both temperature and UV exposure.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | 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 | 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 |
As the months progress, the UV Index experiences significant seasonal changes that pose varying levels of risk for sun exposure. January begins with a moderate level (5) but quickly escalates to high in February (6). The risk peaks notably from March to August, with March and April showing very high levels (9 and 10), before hitting an extreme index of 12 in June, July, and August. This extreme exposure continues into September, with a slight drop to very high again in October (9). The UV levels diminish in the fall and winter months, returning to moderate in November and December (5). Visitors and residents are advised to take precautions, especially during the high-risk months of March to October, ensuring proper sun protection measures, such as sunscreen, protective clothing, and seeking shade during peak hours to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nepalgunj | 5 | 6 | 9 | 10 | 10 | 12 | 12 | 11 | 11 | 9 | 5 | 5 |
| 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 |
| 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 |