Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Sixi, China, where the sunlight can be both inviting and perilous. With the region's Cfa climate, characterized by hot summers, being aware of UV levels helps prevent sunburn and protects your skin from long-term damage. From a peak UV Index of 12 around noon, the risks of overexposure can escalate quickly—making it essential to recognize when to seek shade or apply sunscreen. By staying informed about the daily UV Index, you can enjoy the beautiful days that Sixi offers while keeping your skin health a top priority.
As the day unfolds, the UV Index climbs steadily, peaking at a striking 12 around noon, signaling a high risk for skin damage without protection. Early risers at 07:00 encounter a mild 2, but the intensity increases quickly, reaching 9 by 10:00 and a critical 11 by 11:00. From 12:00 to 13:00, the index holds its highest point at 12, making it essential to seek shade or apply sunscreen. After 13:00, the UV levels gradually decrease, dropping back to a manageable 4 by 16:00 and winding down to a safe 1 by 18:00. This hourly data serves as a reminder to take sun safety precautions, especially during peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | 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 fluctuate significantly, indicating varying risks for sun exposure. From January to February, the UV Index is high (6-7), suggesting that individuals should take precautions when spending time outdoors, with a burn time of 25 minutes. However, as spring approaches, March and April experience a surge to very high levels (9-10), reducing safe exposure time to just 15 minutes. The summer months of May through August reach their peak, with an extreme UV Index of 11-12 and a burn time of only 10 minutes, representing the highest risk for sunburn and skin damage. September begins the gradual decline to 11, while October sees a return to very high levels at 9. By November and December, UV levels drop back to high (6) and moderate (5), allowing for longer safe exposure times of 25-30 minutes. Visitors and residents should remain vigilant, especially from March through September, by utilizing protective measures such as sunscreen, hats, and clothing to safeguard against harmful UV radiation during these high-risk 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 |
| 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 |
| Sixi | 6 | 7 | 9 | 10 | 11 | 12 | 12 | 12 | 11 | 9 | 6 | 5 |
| 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 |