Last updated: May 3, 2025
Understanding the UV Index in Siqian, China is crucial for protecting your skin and overall health against harmful ultraviolet rays. With a humid subtropical climate typical of the region, Siqian experiences significant fluctuations in UV exposure throughout the day. The UV Index can soar as high as 13 between noon and 1 PM, indicating extreme risk of harm from unprotected sun exposure. Being aware of these levels allows residents and visitors to take preventive measures against sunburn and long-term skin damage, ensuring that outdoor activities are both enjoyable and safe. Stay informed and shield yourself from the sun’s intense rays!
The UV Index data paints a vivid picture of sun exposure throughout the day. In the early hours, 07:00 starts with a modest 1, but as the sun climbs higher, the intensity rises sharply. By 10:00, the index hits 9, reaching its peak at 12:00 and 13:00 with a striking 13. This marks the time when sun protection is crucial, as the risk of harm from UV rays is at its highest. After 14:00, the numbers begin to decline, with the UV Index falling to 10 and then tapering down to 7 by 15:00. As the day winds down, the levels drop further, reaching a safe 1 by 18:00 and fading to 0 by 19:00. To enjoy the outdoors safely, it's important to stay vigilant during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal variation, peaking in the summer months. The high-risk months are generally from February through September, during which the UV Index reaches extreme levels (12-13), with a notably short burn time of just 10 minutes. In particular, March to August stand out as critical periods for sun exposure. Residents and visitors are advised to take precautionary measures during these months, such as applying high-SPF sunscreen, wearing protective clothing, and seeking shade to minimize UV exposure. Conversely, in January, October, November, and December, while the UV Index drops to high (7) or very high (9-10), residents should still remain vigilant, with burn times increasing to 15 or 25 minutes. Overall, prioritizing sun safety year-round is essential to protect skin health.
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 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Siqian | 7 | 9 | 12 | 12 | 13 | 13 | 13 | 13 | 11 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |