Last updated: July 2, 2025
In Birganj, Nepal, understanding the UV Index is crucial for safeguarding your skin and overall health. With temperatures often soaring and the sun's rays peaking at levels as high as 13 during midday, awareness of UV levels can mean the difference between a day of fun in the sun and painful sunburn. Protecting your skin is especially important in this region's Cwa climate, where the risks of UV exposure can be significant, particularly between 9 AM and 3 PM. By staying informed about the UV Index, residents can take proactive steps to enjoy the outdoors while keeping their skin healthy and safe.
As the day breaks, the UV Index begins at a modest 3 at 07:00, signaling a gentle start to sun exposure. However, by 08:00, it climbs to a 5, hinting at more intense rays ahead. The peak arrives at 11:00 with a striking 13, where precautions against sunburn become essential. Following this zenith, the index gradually tapers off, dipping to 10 at 13:00 and then dropping significantly to 4 by 15:00. As evening approaches, the UV Index continues its descent, reaching a mere 0 by 19:00, ensuring a safe end to the day. Remember, safeguarding your skin during those midday hours is crucial in this dynamic spectrum of sunlight!
| 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 | 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 |