Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Son Duong, Vietnam, where the warm, humid climate often leads to high levels of sun exposure. Awareness of UV levels is important not only for preventing painful sunburns but also for maintaining long-term skin health. With peak UV Index readings soaring to 13 during midday, it’s vital to take precautions against the harmful effects of UV radiation, especially for outdoor activities. By keeping an eye on the UV Index, you can enjoy the beautiful, sun-soaked days of Son Duong while safeguarding your skin from potential damage.
The UV Index today displays a dynamic pattern, peaking at a striking 13 around 12:00 PM, signaling the strongest sun exposure of the day. Early risers will enjoy a low UV of just 2 at 7:00 AM, but as the sun ascends, the index climbs sharply, reaching 10 by 10:00 AM and hitting 12 at 11:00 AM. As the afternoon unfolds, it gradually dips to 9 at 2:00 PM and then decreases further to 6 by 3:00 PM. By the evening, the UV Index drops significantly, plummeting to 1 at both 4:00 PM and 5:00 PM, and falling to 0 by 7:00 PM. Stay safe and protect your skin during those peak hours!
| 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 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 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 exhibits significant seasonal fluctuations, with January and February marking the start of very high UV levels (8 and 10, respectively) and a burn time of just 15 minutes. As we progress into March and April, the index escalates to an extreme level of 12, with a reduced burn time of 10 minutes, highlighting a critical time for sun safety. The peak risk months span from May to October, where the index reaches a sustained high of 13, continuing to warrant just 10 minutes of unprotected exposure before burn occurs. The UV levels begin to decline in November with a UV Index of 9, still classified as very high, before tapering off to a high of 7 in December with a burn time of 25 minutes. To ensure safety, it is essential for visitors and residents to wear protective clothing, apply sunscreen regularly, and seek shade during peak hours, especially from March to October when UV exposure is most intense.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hanoi UVI | 8 | 10 | 12 | 12 | 13 | 12 | 12 | 13 | 13 | 11 | 9 | 7 |
| Son Duong | 8 | 10 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 11 | 9 | 7 |
| Haiphong UVI | 8 | 10 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 11 | 9 | 7 |
| Da Nang UVI | 10 | 12 | 14 | 15 | 14 | 13 | 14 | 14 | 13 | 12 | 10 | 9 |
| Ho Chi Minh City UVI | 10 | 13 | 15 | 14 | 14 | 12 | 13 | 14 | 13 | 13 | 11 | 10 |
| Bien Hoa UVI | 10 | 14 | 15 | 15 | 14 | 13 | 14 | 14 | 13 | 12 | 11 | 10 |