Last updated: June 2, 2025
In Shangtuhai, China, awareness of the UV Index is crucial for safeguarding your skin health and preventing sunburn. Understanding the levels of ultraviolet radiation allows residents and visitors to take proactive measures against skin damage, particularly during the peak hours when the UV Index reaches its highest at 11 around noon. With a BSk climate, Shangtuhai typically experiences extended periods of sunshine, making it essential to monitor UV exposure risks daily. Stay informed and enjoy the beautiful outdoors while protecting your skin!
The UV Index data paints a vivid picture of a day under the sun, starting with a gentle maximum of 1 at 7 AM. As the morning progresses, the index gradually climbs, reaching 3 by 8 AM and hitting 5 by 9 AM. However, the real intensity arrives around 10 AM, when the UV Index peaks at a striking 11—a clear signal to seek shade and protect your skin. It remains at this maximum level until 1 PM, heralding the highest potential for sunburn and skin damage. As the afternoon unfolds, the index begins to taper off, dropping to 9 at 2 PM, then further declining to 5 by 4 PM. By evening, the intensity wanes, returning to a mild 1 by 6 PM and staying low through the rest of the night. Enjoy the sunshine, but remember to stay safe during those peak hours!
| 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 | 8 | very high | 15 min |
| 11:00 | 10 | 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 |
Throughout the year, UV levels experience significant seasonal changes, peaking during the summer months. January and December have a low UV Index of 2, allowing for longer exposure times without risk of burning (45 minutes). As spring approaches, February sees a moderate increase (UV Index 4, 30 minutes burn time) and by March, the UV Index rises to 6 (high), reducing safe exposure to 25 minutes. The period from April to August is particularly critical, with UV levels reaching their highest at 11 for three consecutive months, which corresponds to an extreme exposure category and a burn time of just 10 minutes. September declines slightly but remains in the very high category with a UV Index of 8. October and November see further reduction, dropping to moderate levels (UV Index 4, 30 minutes) and then back to low by December. To ensure safety, visitors and residents are advised to take precautions during April to August by seeking shade, wearing protective clothing, and using sunscreen to mitigate the higher risk of skin damage during these months.
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 |
| Shangtuhai | 2 | 4 | 6 | 9 | 10 | 11 | 11 | 11 | 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 |