Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Hanyin Chengguanzhen, China, where UV levels can reach alarming heights, particularly during midday hours. High UV exposure can lead to sunburn and long-term skin damage, making it essential to monitor daily UV fluctuations. With a Cwa climate, Hanyin experiences distinct seasonal variations that can influence UV intensity, especially in the summer months. By keeping an eye on the UV Index, you can protect your skin health and enjoy the beautiful outdoor spaces Hanyin has to offer while minimizing the risks associated with excessive sun exposure.
At dawn, the UV Index begins its ascent with a mild 1 at 7:00 AM, gradually increasing to a moderate 2 by 8:00 AM. As the sun climbs higher, it reaches a noteworthy 5 at 9:00 AM, but the real intensity hits at 10:00 AM with a strong 7. By 11:00 AM, the UV levels soar to a peak of 10, continuing at an impressive 11 from 12:00 PM to 1:00 PM—the highest of the day. After this midday intensity, the numbers begin to wane, dropping to 10 at 2:00 PM, then to 8 at 3:00 PM. The afternoon cools off slightly, falling to 5 by 4:00 PM, and ultimately settling back to 3 by 5:00 PM. As the day draws to a close, the UV Index gently slips to 1 by 6:00 PM, and remains there until 7:00 PM, indicating a safe return to evening activities.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal variation, impacting sun exposure risk for residents and visitors. January starts with a moderate Index of 5, leading to a 30-minute burn time, but as we move into February, the Index climbs to 6, categorized as high with a 25-minute burn time. March and April bring very high levels (8 and 10, respectively), drastically reducing burn times to 15 minutes. The peak of UV exposure occurs in the summer months, with May, June, and July maintaining an extreme Index of 11-12, necessitating a cautious 10-minute limit to avoid burns. August sees a slight decline, still within the extreme category, before gradually tapering off in September and October, where the Index returns to very high levels. November allows a brief reprieve with a high Index of 6, while December concludes the year with a moderate Index of 4 and a more manageable 30-minute burn time. Visitors and residents should remain vigilant, particularly during the high-risk months of March through September, taking necessary precautions such as wearing sunscreen and protective clothing to guard against overexposure.
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 |
| 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 |
| Hanyin Chengguanzhen | 5 | 6 | 8 | 10 | 11 | 12 | 12 | 11 | 10 | 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 |