Last updated: June 2, 2025
Understanding the UV Index is essential for residents of Yongjian, China, especially given its Cwb climate that presents significant sun exposure risks. With UV levels soaring to a maximum of 14 during midday hours, monitoring these levels is crucial for sunburn prevention and maintaining skin health. The potential for harmful effects increases dramatically as the sun reaches its peak, making it vital for the community to stay informed. By being aware of the UV Index, residents can take appropriate precautions to safeguard their skin against potential damage and embrace the sunny days ahead with confidence.
The UVI hourly data for the day presents a striking progression of sunlight intensity. Starting at 07:00, the UV Index is a mild 1, but as the sun rises, it steadily climbs to reach 4 by 09:00. The peak intensity is observed during midday, with a maximum index of 14 recorded between 13:00 and 14:00. This is the time to exercise caution, as the UV Index drops to 11 by 15:00, and then gradually decreases once more until the evening, settling back at 1 by 19:00. This data highlights the importance of protecting your skin during the midday hours when UV exposure is at its highest. Stay protected!
| 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 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, indicating that the risk of harmful UV exposure increases markedly from late winter through summer. January and February remain very high at a UV Index of 8 and 9, with a burn time of 15 minutes. However, from March to October, the UV Index reaches extreme levels, peaking at 15 in May and July. During this period, the burn time dramatically decreases to just 10 minutes. The high-risk months are the late spring and summer, specifically from March through September. As a result, both visitors and residents are strongly advised to take precautionary measures during these months, including wearing sunscreen, protective clothing, and seeking shade during peak sun hours. In November, the UV Index drops to 9 again, signaling a return to very high risk, while December sees a further decline to a high level of 7 with a burn time of 25 minutes.
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 |
| Yongjian | 8 | 9 | 12 | 13 | 15 | 14 | 15 | 14 | 14 | 12 | 9 | 7 |