Last updated: July 2, 2025
In Yen Dinh, Vietnam, awareness of the UV Index is crucial for anyone looking to enjoy the sun safely. Understanding the UV levels is vital for preventing sunburns and protecting your skin health, especially with the region's Cwa climate, characterized by intense sunlight and fluctuating temperatures. During peak hours, UV levels can soar—reaching as high as 14 between noon and 1 PM—making it essential for residents and visitors alike to stay informed about the potential exposure risks. By taking simple precautions based on the UV Index, you can protect yourself from harmful effects while enjoying all that Yen Dinh has to offer.
The UV Index throughout the day paints a clear picture of sun intensity, peaking dramatically between 11:00 AM and 12:00 PM, where it reaches a scorching 14. Early morning starts off mild with a maximum of 2 at 7:00 AM, gradually escalating to a more cautious 4 at 8:00 AM, before the sun strikes hard at 10 around 10:00 AM. By 9:00 AM, the UV climbs to 7, signaling the importance of sun protection as it escalates further to its zenith. In the afternoon, values begin to descend, dropping to 10 at 2:00 PM, and decreasing steadily to 1 by 5:00 PM, indicating a return to safer conditions as the sun sets. With no UV exposure risks by 7:00 PM, this data underscores the critical times for sunscreen application and shade seeking to prevent harm. Stay safe and savvy under the sun!
| 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 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 12 | 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 |
Throughout the year, the UV Index shows significant seasonal changes, with notably high levels from March to October. The highest risk months are July and August, when the UV Index peaks at 14, categorized as extreme, with a burn time of only 10 minutes. Visitors and residents are advised to take extra precautions during these months, including wearing protective clothing, using sunscreen with a high SPF, and seeking shade during peak sun hours. Notably, January and February also present very high risks, with UV Index values of 8 and 10 respectively, emphasizing the need for vigilance even in the cooler months. As the year progresses into November and December, the UV exposure decreases, but it is still essential to remain mindful of sun safety practices.
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 |
| Yen Dinh | 8 | 10 | 12 | 13 | 13 | 13 | 14 | 14 | 13 | 12 | 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 |