Last updated: June 2, 2025
In Suptay, China, understanding the UV Index is crucial for your health, particularly in this semi-arid climate where sun exposure can be intense. With daily UV levels peaking at a staggering 11 around noon, being aware of the UV Index helps you take proactive measures to prevent sunburn and promote healthy skin. As UV rays increase throughout the morning and reach their maximum intensity, residents and visitors should stay informed to reduce their risk of skin damage. By keeping an eye on the UV Index, you can enjoy the abundant sunshine while safeguarding your skin against its harmful effects.
The UV Index begins its climb at 07:00 with a low reading of 2, gradually escalating to a moderate 3 by 08:00. As the sun rises higher, the index spikes to 5 at 09:00, peaking at a striking 11 from 12:00 to 13:00—the time for strong sun protection. Following this zenith, the UV levels start to drop, descending to 9 by 14:00, and further down to 7 at 15:00. The afternoon gives way to a gentle decline, with readings of 5 at 16:00, 3 at 17:00, and tapering off to a mild 1 by 18:00 and 19:00. It's essential to stay aware of these fluctuations as midday approaches, when the sun's rays are at their most intense.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | 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 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, significantly impacting sun exposure risks for both visitors and residents. The highest UV levels are observed from April to August, with June reaching an extreme UV Index of 11, indicating a burn time of just 10 minutes. March also marks the onset of very high UV conditions at an index of 8, while October and November see a decrease to moderate levels with indices of 5 and 3, respectively. High-risk months for sun exposure are predominantly during late spring and summer, specifically from April through August. It is crucial for individuals to take protective measures during these months, such as wearing sunscreen, protective clothing, and seeking shade, especially during peak sunlight hours. In contrast, during the winter months of January and December, the UV levels are relatively low, offering a reprieve for outdoor activities without as much risk of sunburn.
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 |
| Suptay | 2 | 4 | 8 | 8 | 10 | 11 | 10 | 10 | 8 | 5 | 3 | 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 |