Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Chisong, China, where the climate (classified as Dwb) provides both opportunities for outdoor activities and significant sun exposure. Knowing the UV levels helps in preventing sunburn and protecting your skin health, guiding you on when to apply sunscreen or seek shade. With peak UV Index values reaching 10 around midday, the sun can be fierce, making it essential to stay informed about UV risks and take appropriate precautions to enjoy the beautiful outdoors safely.
The UV Index showcases a dynamic range throughout the day, starting with a mild 3 at 07:00. As the sun climbs higher, the intensity peaks with a remarkable 10 at both 11:00 and 12:00, indicating a need for sun protection. The index starts to decline in the afternoon; by 15:00, it's back down to 4, and it further drops to a gentle 1 by 17:00, remaining at that level until dusk. This data highlights the importance of planning outdoor activities in accordance with UV exposure, especially during midday hours when levels soar.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, which significantly influences sun safety for both visitors and residents. During the winter months of January and December, UV levels remain low (Index 2), allowing for longer safe exposure times of 45 minutes. Moving into spring, February sees a moderate increase (Index 4) that reduces burn time to 30 minutes, escalating to a high level in March (Index 6) with a 25-minute burn time. The summer months of April through August present the highest risk, as the UV Index peaks at 10 during June, July, and August, necessitating protective measures with a dangerously short burn time of only 15 minutes. In fall, September's UV Index drops to 7 (high), offering 25 minutes of safe time, and October and November see moderate levels (Indexes 5 and 3, respectively) with burn times of 30 minutes. It is essential for everyone to stay informed, taking proactive measures like wearing sunscreen, protective clothing, and seeking shade, especially from April to August, when UV exposure is at its most harmful.
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 |
| Chisong | 2 | 4 | 6 | 8 | 9 | 10 | 10 | 10 | 7 | 5 | 3 | 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 |