Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Lungtenzampa, Bhutan, given the region's unique climate and elevation. With UV levels reaching a peak of 16 around noon, awareness of these radiation levels is essential for sunburn prevention and maintaining long-term skin health. The temperate climate (Cwb) can sometimes disguise these risks, leading individuals to underestimate their exposure to harmful UV rays. Stay informed and protect your skin—knowing the UV Index helps you enjoy the sun safely!
As the sun rises, UV Index levels gradually climb, starting at a modest 2 at 07:00. By 08:00, the intensity picks up, reaching 5, but it's at 09:00 that the sun truly asserts its power with a notable 9. The peak occurs between 11:00 and 12:00, where it skyrockets to an impressive 15 and 16, making it essential to seek shade and apply sunscreen. A steady decline follows, dropping to 11 by 14:00 and 7 by 15:00. As the afternoon fades, the UV Index dwindles into safer numbers—4 at 16:00, 2 at 17:00, and gracefully tapering off to 1 by 18:00 before settling at 0 by 19:00. Utilize this data to plan your outdoor activities wisely and protect your skin when the sun is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 9 | very high | 15 min |
| 10:00 | 12 | extreme | 10 min |
| 11:00 | 15 | extreme | 10 min |
| 12:00 | 16 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV exposure significantly varies, with the highest UV Index levels occurring from March to October. During this peak period, particularly in April, May, June, July, and August, the UV Index reaches extreme levels (14-16), requiring only 10 minutes of sun exposure before burning occurs. Visitors and residents should take extra precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade when necessary. The high-risk months are February through October, with the most critical months in April and May. As the year progresses, the UV Index gradually decreases, dropping to very high levels in November and high in December, where burn times increase to 15 and 25 minutes, respectively. Staying informed and protected is crucial for everyone's health throughout all seasons.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phuntsholing UVI | 5 | 7 | 9 | 10 | 11 | 13 | 14 | 13 | 12 | 10 | 8 | 6 |
| Pemagatshel UVI | 6 | 8 | 10 | 13 | 13 | 14 | 15 | 14 | 13 | 11 | 8 | 6 |
| Tsirang UVI | 6 | 9 | 10 | 12 | 13 | 14 | 15 | 14 | 13 | 11 | 8 | 6 |
| Punakha UVI | 8 | 10 | 12 | 14 | 15 | 15 | 16 | 15 | 14 | 11 | 9 | 6 |
| Lungtenzampa | 8 | 10 | 13 | 14 | 16 | 16 | 16 | 15 | 14 | 12 | 9 | 7 |
| Thimphu UVI | 8 | 10 | 13 | 14 | 16 | 16 | 16 | 15 | 14 | 12 | 9 | 7 |