Last updated: June 2, 2025
In Phu Vang, Vietnam, understanding the UV Index is crucial for protecting yourself and your loved ones from the sun's harmful rays. With its tropical climate and high UV levels, especially during midday hours, awareness of UV exposure is essential for sunburn prevention and promoting overall skin health. The UV Index often peaks at 13 around noon, signaling a significant risk of harm; thus, knowing when to seek shade or apply sunscreen can make all the difference in enjoying the sun safely. Stay informed and take proactive measures to safeguard your skin while soaking up the beautiful Vietnamese sunshine!
The UV Index for the day reveals a dramatic peak in intensity around midday. Starting at 7:00 AM with a moderate level of 2, the index swiftly climbs, hitting **4 by 8:00 AM and reaching a notable 7 by 9:00 AM. The UV exposure escalates rapidly, peaking at a striking 13 by 11:00 AM and maintaining this high level until 12:00 PM. After this peak, the index experiences a gradual decline: dropping to 11 at 1:00 PM and decreasing further to 5 by 3:00 PM. As the day winds down, UV levels fall to 3 at 4:00 PM before settling at a minimal 1 by 5:00 PM. The UV Index finally tapers off to 0 as evening approaches, emphasizing the importance of sun protection during the most intense hours of the day!
| 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 | 11 | extreme | 10 min |
| 14:00 | 8 | 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 demonstrates significant seasonal variation, with the highest values occurring from February to October, peaking at 14 during April, May, July, and August, all classified under the extreme exposure category. Notably, March through October consistently shows an extreme risk of UV exposure, with a burn time as short as 10 minutes. January and November revert to a very high exposure category, allowing for slightly longer burn times of 15 minutes. Residents and visitors should exercise caution during these high-risk months, ensuring adequate sun protection such as hats, sunglasses, and sunscreen, particularly during the midday hours when UV radiation is most intense. Adopting these precautions is essential to avoid harmful effects from prolonged sun exposure.
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 |
| Phu Vang | 10 | 12 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 12 | 10 | 9 |
| 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 |