Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Wulan, China, where the arid BSk climate poses unique challenges for skin health. With UV levels peaking at an alarming 12 during the summer months, it's essential to be aware of the potential for sunburn and long-term skin damage. By keeping track of daily UV exposure, you can take proactive steps to protect your skin, ensuring a safe and enjoyable experience under the sun. So whether you're venturing outdoors for work or leisure, understanding these UV levels can significantly impact your well-being in this beautiful but sun-intense region.
Throughout the day, the UV Index displayed a dynamic pattern, peaking at an intense 12 around 1 PM. Starting off gently at 1 by 7 AM, it climbed steadily, reaching 9 by 11 AM, a clear sign to take precautions. As the sun approached its zenith, the index swelled to its maximum at 12 PM, emphasizing the importance of sun safety. Following the midday peak, the index gradually decreased, dropping to 9 by 3 PM, then tapering off further to 2 by 6 PM and 1 by 7 PM. This data underscores the significance of shielding oneself from the sun's harmful rays during the day, especially when the UV Index is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons progress, the UV Index varies significantly, reflecting changing sun intensity. From January to February, the UV Index remains moderate (3-5), allowing for 30-minute burn times. However, starting in March, a notable increase occurs, with the UV Index reaching 8 and classified as very high, reducing burn time to 15 minutes. The months of May, June, July, and August present the highest risk, with UV Index values peaking at 12-13, categorized as extreme and allowing only 10 minutes of sun exposure before burning. As autumn approaches in September and October, the UV Index decreases but remains very high (10-8), maintaining a 15-minute burn time. By November and December, UV exposure risks lessen to moderate levels again. Visitors and residents should take precautionary measures during high-risk months—especially from March to August—by seeking shade, wearing protective clothing, and applying sunscreen to minimize the risk of skin damage.
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 |
| Wulan | 3 | 5 | 8 | 10 | 12 | 13 | 12 | 12 | 10 | 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 |