Last updated: June 2, 2025
Understanding the UV Index is essential for residents and visitors in Ganlan, China, where the sun can be especially intense. With localized UV levels peaking at 12 around midday, awareness helps in the prevention of sunburn and protects long-term skin health. Recognizing these levels is crucial for enjoying outdoor activities safely, especially given Ganlan's Cfa climate, characterized by high humidity and ample sunshine. By staying informed about UV exposure risks, you can take proactive measures to shield your skin while reveling in the vibrant environment this beautiful locale has to offer.
The UV Index throughout the day offers a vivid glimpse into solar intensity, peaking dramatically as the sun reaches its zenith. Starting at 7:00 AM with a moderate 2, the index climbs steadily, reaching 4 by 8:00 AM. By 9:00 AM, it surges to 7, and from 10:00 AM to 12:00 PM, it hits its maximum, soaring to 12 at noon. As the day progresses, a gradual decline begins, with 11 at 1:00 PM and tapering down to 8 by 2:00 PM. The afternoon sees a gentle decrease, settling at 6 by 3:00 PM, and finally dwindling to a mere 1 by 5:00 PM. The sun's impact fades into the evening, where the UV Index drops to 0 by 7:00 PM, signaling a retreat from the day's solar embrace. This data highlights the importance of sun protection from late morning through early afternoon, when UV levels are at their highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the summer months. High-risk months include May through August, where the UV Index consistently reaches extreme levels of 11 or 12 and the burn time is as brief as 10 minutes. As such, residents and visitors should take precautionary measures during these peak months, such as seeking shade, wearing protective clothing, and applying sunscreen regularly. In contrast, the UV Index lowers during the fall and winter months, with January and November presenting high levels but more extended burn times of up to 25 minutes. It remains essential for everyone to stay informed about daily UV levels and adapt their sun protection habits accordingly, especially during the highest risk periods.
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 |
| Ganlan | 6 | 7 | 9 | 10 | 11 | 12 | 12 | 12 | 10 | 8 | 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 |