Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Chisong, China, where sun exposure can significantly impact skin health. With peak UV levels reaching a high of 9 around midday, awareness of these indices is essential for preventing sunburn and reducing long-term skin damage. Chisong's Dwb climate brings sunny days, making it all the more important to monitor UV risks throughout the day. By staying informed about daily UV fluctuations, you can protect yourself with proper sun safety measures, ensuring your outdoor activities remain enjoyable and safe.
As the sun rises, the UV Index gradually climbs, peaking at a max of 9 at 11:00 AM, indicating a high risk of harm from unprotected sun exposure. Early hours see a modest level of 2 at 07:00, but the intensity escalates quickly, reaching 8 by 10:00 AM. From this point, it remains elevated until noon, where it slightly dips to 8 before gradually declining throughout the afternoon. By 03:00 PM, the index drops to 3, and as the day winds down, it reaches a mere 0 by 07:00 PM. This pattern underscores the importance of sun protection during peak hours, particularly between 10 AM and 2 PM, when the 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 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | 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 |