Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Wudun, China, where the climate is categorized as semi-arid (BWk), leading to varied sun exposure throughout the year. Awareness of UV levels is vital as it helps prevent sunburn and protects skin health, allowing individuals to enjoy the outdoors safely. With peak UV readings reaching a significant 11 between noon and early afternoon, it's essential to recognize how these levels fluctuate throughout the day. Being mindful of UV Index ratings can help you make informed decisions about sun protection and outdoor activities, ensuring you thrive in Wudun’s sunny climate while safeguarding your skin.
The UV Index today paints a vivid picture of the sun's intensity as it rises to its peak around midday. Starting off gently at 1 by 07:00 and 08:00, the sun begins to assert itself, climbing to 3 by 09:00. As the clock strikes 10:00, the UV index soars to 5, and by 11:00, it surges to 7. The real heat hits around noon, with 12:00 witnessing a striking 9 before peaking at 11 from 13:00 to 14:00—ideal conditions for sunbathers and outdoor enthusiasts. However, as the day progresses, the UV levels start to dip; by 15:00, it settles at 10, then recedes to 8 by 16:00. Finally, as evening approaches, the index drops to 5 at 17:00, 3 at 18:00, and returns to a mild 1 by 19:00. It’s a day to embrace the sun early, but don’t forget the sunscreen as the UV rays reach their zenith!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal variations, with high-risk months primarily occurring from March to September. In March, the UV Index rises to 7 (high), intensifying in April and May with values of 9 and 10, respectively, indicating very high exposure risks. The peak occurs in June, with an extreme index of 11, before slightly tapering off in July and August. September still presents a notable risk at 8 (very high), while October sees a decrease to a high index of 6, before falling to moderate and low levels in the winter months of November (4) and December (2). To protect against skin damage, visitors and residents are advised to take precautions during the high UV months by wearing sunscreen, protective clothing, and seeking shade, especially during peak sunlight hours.
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 |
| Wudun | 3 | 4 | 7 | 9 | 10 | 11 | 10 | 10 | 8 | 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 |
| 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 |