Last updated: May 3, 2025
In Rajbiraj, Nepal, understanding the UV Index is essential for safeguarding your skin against harmful ultraviolet rays. With the region's Cwa climate, residents and visitors alike must be informed about the daily UV levels, especially during peak hours when the risk of sunburn and long-term skin damage significantly increases. During mid-day, the UV Index can soar to as high as 10, making it crucial to take preventive measures. By staying aware of the UV levels, you can enjoy the sun safely while protecting your skin health and preventing unpleasant sunburns.
The UV Index data presents an intriguing day of sun exposure. Beginning at 7 AM with a low UVI of 3, the intensity ramps up quickly, reaching its peak at 11 AM with a high of 10—a time when sun protection is crucial. Between 10 AM and 12 PM, the index remains high, hitting 9 before gradually declining. By 3 PM, it drops to 3, indicating a notable decrease in sun intensity as the afternoon progresses. After 4 PM, UV levels plummet, falling to 1 by 5 PM and ultimately to 0 by 6 PM, signaling a safe end to outdoor activities. This data highlights the importance of being mindful of sun safety during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 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 | 9 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, UV exposure varies significantly, with peaks in the summer months. High-risk months for UV exposure include June through September, when the UV Index reaches extreme levels (11 to 13), with dangerously short burn times of just 10 minutes. Additionally, March and April also present high risk with very high UV levels (8 to 10), demanding vigilance. Visitors and residents are strongly advised to protect themselves by seeking shade, wearing protective clothing, and applying sunscreen regularly, especially during these peak months. In contrast, the winter months of January and December show a moderate risk, with longer burn times of 30 minutes, allowing for safer outdoor activities if precautionary measures are still taken.
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 |
| Rajbiraj | 5 | 6 | 8 | 10 | 10 | 11 | 13 | 12 | 12 | 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 |