Last updated: May 3, 2025
In Yuanwu, China, being aware of the UV Index is crucial for protecting your skin against harmful ultraviolet rays. Understanding UV levels can make a significant difference in preventing sunburn and promoting long-term skin health. With a Cwa climate characterized by hot, humid summers, Yuanwu experiences substantial UV exposure, particularly during midday hours when the index peaks at a striking 9. Staying informed about these levels empowers residents and visitors alike to enjoy the sun safely while minimizing the risk of skin damage.
As the sun rises, the UV Index begins its ascent, peaking at 12:00 PM with a striking 9. Early hours start mild, with a 1 at 07:00, gradually climbing to a 3 by 08:00. The sun's rays intensify, reaching a moderate 5 by 09:00, and quickly soaring to a robust 7 at 10:00. By 11:00, it hits an 8, signaling the need for sun protection. The highest UV exposure occurs between 12:00 PM and 1:00 PM, holding steady at 9—a time to seek shade or don sunscreen. The intensity then begins to wane, dipping to 7 at 2:00 PM, before gradually descending to a 1 by 7:00 PM. Keep in mind the midday sun to stay safe and enjoy your outdoor activities!
| 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 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels vary significantly, indicating seasonal changes in sun exposure risks. High-risk months occur from March to October, with April to August reaching very high levels (UV Index 8-10). Notably, July has the highest UV Index of 10, resulting in a burn time of just 15 minutes. In contrast, during the winter months of January, February, and December, the UV Index drops to a moderate level (UV Index 3-4), allowing for longer burn times of 30 minutes. Visitors and residents are advised to take extra precautions from March through September by wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to reduce 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 |
| Yuanwu | 3 | 4 | 6 | 8 | 9 | 9 | 10 | 9 | 8 | 7 | 4 | 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 |