Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Xumai, China, especially given its unique climate conditions. With UV levels peaking as high as 17 during midday, awareness of these levels is vital for sunburn prevention and maintaining skin health. Xumai experiences a cool, highland climate, but that doesn’t shield you from potential UV exposure. Whether you’re soaking up the sun or enjoying outdoor activities, staying informed about the UV Index can help you take the necessary precautions to protect your skin from harmful rays.
The UV Index is an essential measure of sun exposure, and today’s hourly data paints a vivid picture of its fluctuations. As the day begins, from 7:00 AM to 9:00 AM, the UV levels remain low, peaking at 2 by mid-morning. However, as the sun climbs higher, a dramatic increase occurs—by 10:00 AM, the index surges to 5. The heat truly escalates as noon approaches, reaching 13 at 12:00 PM and hitting a staggering 17 by 2:00 PM. This peak at 14:00 PM underscores the intensity of midday sun. After this zenith, the UV Index gradually decreases, settling at 8 by 5:00 PM and finally dropping to a more manageable 2 by 7:00 PM. Stay vigilant and protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 16 | extreme | 10 min |
| 14:00 | 17 | extreme | 10 min |
| 15:00 | 15 | extreme | 10 min |
| 16:00 | 12 | extreme | 10 min |
| 17:00 | 8 | very high | 15 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Seasonal UV levels vary significantly throughout the year, with notable peaks during the spring and summer months. January starts off with a UV Index of 8, categorized as very high, leading to a burn time of just 15 minutes. As we progress into February and March, the UV Index escalates to 11 and 14, respectively, both classified as extreme, necessitating a burn time of just 10 minutes. This trend continues through April and May, where the UV Index reaches its highest at 15 and 18, maintaining that extreme risk with a burn time of 10 minutes during June, July, and August. Even September and October keep the extreme alert with readings between 12 and 17, while November drops slightly to an 11. Finally, December registers a lower UV Index of 7, allowing a slightly increased burn time of 25 minutes. Visitors and residents must be especially vigilant during the high-risk months of February through October, where sun protection strategies should be prioritized to minimize UV exposure. Implementing measures such as wearing sunscreen, protective clothing, and seeking shade when outdoors is crucial during these months to safeguard against the harmful effects of UV radiation.
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 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |
| Xumai | 8 | 11 | 14 | 15 | 18 | 18 | 17 | 17 | 17 | 12 | 11 | 7 |