Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Dongchuan, China, where the interplay of altitude and climate can significantly elevate UV exposure risks. Being aware of UV levels not only helps in preventing sunburn but also plays a vital role in maintaining skin health for all ages. During the day, particularly between 11 AM and 2 PM, UV Index readings can soar to an intense 12, indicating a high risk of harm from unprotected sun exposure. With Dongchuan's unique ET climate, frequent visitors must take special precautions to shield themselves from harmful UV rays, ensuring a safe and enjoyable time in this picturesque region.
The UV Index during the day showcases a clear peak in intensity, reaching a maximum of 13 between 1:00 PM and 2:00 PM. As the day begins at 7:00 AM with a minimal index of 1, the sunlight gradually intensifies, climbing to 12 by noon. The 10 AM hour marks a pivotal moment, as the index escalates to 7, indicating an increasingly strong potential for skin damage. Post-peak, the UV levels begin to decline, tapering off to 4 by 5:00 PM, and returning to 1 at 7:00 PM. It's a vivid reminder that from morning to early afternoon, sun safety precautions are crucial to protect against harmful UV exposure!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal changes, with the highest risks occurring in the late spring and summer months. March marks the onset of higher risk, classified as very high (UV Index 9), while April through August reach extreme levels (UV Index 13-15), necessitating careful sun exposure management, especially for those with fair skin. Burn time during these peak months is notably short, averaging just 10 minutes. As summer wanes in September, the index remains high but slightly decreases to 11, transitioning to very high in October (UV Index 8) before leveling out again in the winter months. Visitors and residents should take precautions during these high-risk months, particularly from March to October, by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours to mitigate harmful 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 |
| 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 |
| Dongchuan | 3 | 6 | 9 | 13 | 13 | 15 | 14 | 13 | 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 |