Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Huayuan, China, where varying levels of sun exposure can pose significant risks to skin health. With the climate classified as Cwa, Huayuan experiences both dry and wet seasons that influence UV radiation levels, making it essential to monitor these changes. Knowing the UV levels throughout the day helps prevent sunburn and long-term skin damage, particularly during peak hours when the index reaches a maximum of 10 between 11:00 AM and 1:00 PM. By staying informed and understanding the UV Index, you can protect yourself and enjoy all that Huayuan has to offer while minimizing risk.
As the day begins at 07:00 with a low UV Index of 1, the sun gradually gains strength. By 08:00, it rises to 3, prompting a hint of caution for early risers. 09:00 brings a noticeable jump to 5, while 10:00 reaches a robust 8. The sun peaks at 11:00 and 12:00, maintaining a high UV Index of 10, indicating that sun protection is essential during these hours. Even the early afternoon sees this intensity sustain at 10 until 13:00. As the day progresses, the UV Index slips to 8 by 14:00 and continues to decline to 6 at 15:00. In the late afternoon and evening, the UV levels gently taper off, dropping to 4 at 16:00, and finally resting at 2 by 17:00, before settling back to a safe 1 by 18:00 and 19:00. Be mindful to shield yourself during the peak hours to enjoy the sun safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal variation, particularly rising in the spring and summer months. Notably, March marks the transition into the high-risk category, with a UV Index of 7 (burn time: 25 min), which continues to escalate through April (UV Index 8, burn time: 15 min) and peaks in August at an extreme level of 11, where the burn time is just 10 minutes. The months of May through August are characterized by very high to extreme UV levels, making them critical for sun safety. Residents and visitors are advised to take preventative measures during these months, including wearing sunscreen, protective clothing, and seeking shade, especially between 10 a.m. and 4 p.m. In contrast, December and January reflect the lowest UV exposure, ranking as moderate, allowing for safer outdoor activities. Staying informed on these seasonal changes is essential for protecting skin health year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beijing UVI | 2 | 3 | 5 | 8 | 9 | 9 | 10 | 9 | 7 | 6 | 4 | 2 |
| Huayuan | 4 | 5 | 7 | 8 | 10 | 10 | 10 | 11 | 9 | 8 | 5 | 3 |
| Chengdu UVI | 5 | 6 | 8 | 10 | 12 | 11 | 11 | 10 | 11 | 8 | 6 | 4 |
| Shanghai UVI | 5 | 6 | 8 | 10 | 10 | 11 | 12 | 11 | 11 | 8 | 6 | 4 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |