Last updated: July 2, 2025
As the sun rises over Lac Duong, Vietnam, understanding the UV Index becomes essential for residents and visitors alike. With the area's tropical Aw climate, the UV levels can soar, peaking during midday at an alarming UV Index of 15—significantly increasing the risk of sunburn and long-term skin damage. Being aware of these levels not only helps prevent painful sunburns but also promotes overall skin health. With midday exposure reaching its zenith, it’s crucial to take protective measures—like seeking shade, applying sunscreen, and wearing protective clothing—especially during the highest UV index hours. Stay informed and sun-safe to enjoy the beautiful outdoors in Lac Duong!
The UV Index throughout the day exhibits a striking pattern, starting with a mild 2 at 07:00 and steadily climbing to a peak of 15 by 12:00. From 08:00 onward, sun-seekers should be cautious as the index escalates; it hits 14 at 11:00 and a maximum of 12 at 10:00. As the afternoon approaches, the intensity begins to taper off, dropping to 10 by 14:00 and further decreasing to 6 at 15:00. The latter hours see a rapid decline, with the index falling to 1 by 17:00 and remaining there until it finally drops to 0 at 19:00. Overall, this data indicates the midday sun is particularly potent, urging everyone to take protective measures during peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 12 | extreme | 10 min |
| 11:00 | 14 | extreme | 10 min |
| 12:00 | 15 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | 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 |
The UV Index displays significant seasonal fluctuations, remaining at extreme levels throughout most of the year. From January to October, the UV levels range from 12 to 16, indicating a consistent risk of sunburn within just 10 minutes of exposure. February and March represent the peak months, with a UV Index of 15 and 16 respectively. Visitors and residents should exercise caution during these high-risk months, particularly from January to September when UV levels remain dangerously high. It is advisable to wear protective clothing, apply sunscreen, and seek shade, especially during midday hours. In November, the UV Index drops to 12 (still extreme), followed by a slight decrease to 10 in December (very high), but vigilance is still recommended to prevent skin damage.
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 |
| 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 |
| Lac Duong | 12 | 15 | 16 | 16 | 15 | 14 | 15 | 15 | 15 | 14 | 12 | 10 |