Last updated: June 2, 2025
Awareness of the UV Index is crucial for residents and visitors in Nanyang, China, where the subtropical climate brings both warmth and significant sun exposure. Understanding UV levels is essential not just for enjoying sunny days, but also for protecting your skin from sunburn and long-term damage. With the UV Index peaking at 10 during the midday hours, Nanyang experiences heightened risks of harmful UV radiation, making it vital to take precautions as you navigate the vibrant outdoor lifestyle this beautiful city has to offer. Stay informed, protect your skin, and enjoy the sunshine wisely!
As the sun rises, the UV Index gradually transitions from a mild 1 at 07:00 to an invigorating 3 by 08:00. The peak UV intensity hits its stride between 12:00 and 13:00, reaching a striking 10, a clear call for sun protection. As the afternoon progresses, the index begins to decline, tapering off to 8 at 14:00, 6 at 15:00, and eventually settling to a gentle 2 by 17:00. By evening, the UV levels dip back down, returning to a safe 1, indicating it's time to relax and enjoy the cooler, softer light of sunset.
| 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 | 7 | high | 25 min |
| 11:00 | 9 | 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, exposure to ultraviolet (UV) radiation shows significant seasonal variation. January and February present moderate UV Index levels of 4 and 5, respectively, allowing for a burn time of 30 minutes. As spring approaches, March sees an increase to a high UV Index of 7 (burn time of 25 minutes), followed by April, which reaches a very high UV Index of 9 and reduces burn time to 15 minutes. The UV intensity peaks in May at an extreme 11, necessitating a cautious approach with a burn time of just 10 minutes. Through the summer months of June, July, and August, the UV Index remains very high at 10, maintaining a burn time of 15 minutes. In September and October, UV levels gradually decline to 9 and 8, respectively, yet still require vigilance during outdoor activities with a burn time of 15 minutes. The UV Index drops again in November to 5 and falls further to 3 in December, with longer burn times of 30 minutes. Visitors and residents should remain cautious during the high-risk months of April through October, seeking shade, wearing protective clothing, and applying sunscreen regularly to mitigate the risks associated with UV exposure.
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 |
| Nanyang | 4 | 5 | 7 | 9 | 11 | 10 | 10 | 10 | 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 |