Last updated: August 1, 2025
Understanding the UV Index is essential for the residents of Sundar Basti, Nepal, where the climate often pushes UV exposure to significant levels. With a peak UV Index reaching 14 around midday, awareness of UV levels is crucial to prevent sunburn and protect skin health. This vibrant community, nestled in a Cwa climate zone, is exposed to heightened UV risks during sunny days, making it imperative for locals to stay informed. By understanding UV indices and adapting outdoor activities accordingly, you can enjoy the sun safely while safeguarding your skin from harmful effects.
The UV Index exhibits a dramatic rise throughout the morning, starting at a mild 3 at 07:00 and surging to a peak of 14 by 11:00. This intensity signals the need for sun protection, especially as it reaches its highest point of 12 at 10:00. The afternoon sees a gradual decline, dipping to 5 by 15:00, and continuing to drop further to just 1 by 17:00. As evening approaches, the UV Index falls to 0 by 19:00, marking a significant reduction in sun exposure. Remember to stay vigilant during those peak hours for optimal sun safety!
| 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 | 13 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 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 seasons change, so do UV levels, impacting sun exposure risks for residents and visitors. January and December feature moderate UV indices of 5, allowing for longer burn times of 30 minutes, while February sees an increase to 6, marking the onset of high exposure with a burn time of 25 minutes. The risk escalates sharply from March through September, where UV indices peak at 14 in July, categorizing these months as extreme, with burn times dropping to just 10 minutes. High-risk months include March to September, where precautions should be taken seriously. As autumn approaches, October sees a decrease to a very high index of 10, again allowing for a longer burn time of 15 minutes, while November returns to high exposure. It’s crucial for everyone to apply sunscreen, wear protective clothing, and seek shade during peak hours, especially in high-risk months.
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 |
| Sundar Basti | 5 | 6 | 9 | 10 | 11 | 12 | 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 |