Last updated: July 2, 2025
In Guang'an, China, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding the levels of ultraviolet radiation throughout the day can help residents and visitors alike protect themselves from harmful effects, especially during peak hours. With a Cwa climate characterized by hot summers, the UV exposure risks can be significant. For example, the UV Index spikes to 11 at noon—well into the very high category—highlighting the need for effective sun protection measures. By staying informed about local UV levels, you can enjoy the beautiful outdoors while keeping your skin safe!
The UV Index reveals a fascinating journey through the day, peaking dramatically as the sun reaches its zenith. Starting off with a mild index of 1 at 07:00, it gradually climbs, reaching 2 by 08:00. As the morning unfolds, the intensity surges, with a notable jump to 4 at 09:00, and skyrocketing to a striking 11 by 12:00. The highest level of 12 is recorded at 13:00, indicating the critical hour for sun exposure, before a gradual decline begins. By 14:00, it dips to 10, followed by a steady drop to 8 at 15:00, and continues to decrease into the evening. The UV Index settles back down to 1 by 18:00, tapering off into the night. It's a stark reminder of the sun's powerful influence, emphasizing the importance of sun safety during peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 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, the UV Index shows significant seasonal changes that indicate varying levels of sun exposure risk. From January to April, the UV Index steadily rises, with March and April presenting very high levels (8-10), reflecting increasing sun intensity as spring approaches. The summer months of May through August are particularly hazardous, reaching extreme levels (11-12) where burn times drop to just 10 minutes. In contrast, September maintains an extreme UV level before gradually decreasing to high in November and moderate by December. Visitors and residents should be especially cautious during the high-risk months of March through September, adopting protective measures such as sunscreen, hats, and UV-blocking sunglasses to minimize skin damage and ensure safety while enjoying outdoor activities.
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 |
| Guang'an | 5 | 6 | 8 | 10 | 11 | 11 | 12 | 12 | 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 |