Last updated: June 2, 2025
In Dak Song, Vietnam, understanding the UV Index is essential for protecting your skin and overall health. The UV Index provides critical information about the intensity of ultraviolet radiation on any given day, helping residents and visitors alike to prevent sunburn and reduce the risk of long-term skin damage. With a tropical climate marked by high UV exposure—especially during peak hours between 10:00 AM and 2:00 PM, when readings can soar to 13—being aware of these levels is not just beneficial, but vital. Equip yourself with the knowledge of local UV patterns to enjoy the beautiful sunny days in Dak Song, while keeping your skin safe from harmful effects.
As the sun rises, the UV Index starts at a mild 2 at 7:00 AM, making it a gentle beginning to the day. By 8:00 AM, it climbs to 4, hinting at the need for a bit of sun protection. The intensity reaches its peak between 10:00 AM and 12:00 PM, soaring to a high of 13. This powerful midday sun calls for extra caution as the UV index hovers at this level for two consecutive hours before gradually tapering off. By 3:00 PM, the UV Index drops to 5 and continues to decline, hitting 1 by 5:00 PM. As evening approaches, the UV levels ease to 0 by 7:00 PM, wrapping up the day with a low-risk, sun-safe atmosphere. Enjoy the bright moments, but don’t forget your sunscreen 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 | 11 | extreme | 10 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 5 | moderate | 30 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 fluctuates significantly throughout the year, peaking from February to September, where values consistently fall within the extreme exposure category. Particularly high-risk months include March, with a UV Index of 16, and April, May, August, and September, all at 15. Visitors and residents are urged to take precautionary measures during these months, such as wearing protective clothing, sunglasses, and applying sunscreen frequently, as burn time is limited to just 10 minutes in most cases. Even as autumn approaches, UV levels remain high; thus, continued vigilance is essential until November. In December, UV levels drop to a very high category, with a slightly longer burn time of 15 minutes, so while the risk reduces, awareness should remain a priority year-round.
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 |
| Dak Song | 11 | 14 | 16 | 15 | 15 | 13 | 14 | 15 | 15 | 13 | 12 | 10 |