Last updated: July 2, 2025
Understanding the UV Index in Santai, China, is crucial for safeguarding your skin and overall health. The UV Index serves as a daily reminder of the sun's intensity, helping residents and visitors alike to prevent sunburn and minimize long-term skin damage. With Santai’s semi-arid BWk climate, UV exposure can be particularly high, especially during midday hours when the index peaks at 10. Being aware of these levels allows you to take appropriate precautions, ensuring enjoyable outdoor activities while protecting your skin from harmful UV rays.
At dawn, as the sun begins its ascent, the UV Index starts at a modest 2 at 07:00. By 08:00, it climbs to 4, signaling a gradual increase in sunlight intensity. The day peaks with a maximum UV Index of 10 from 11:00 to 13:00, reminding us to seek shade and wear adequate protection. As the afternoon progresses, the index dips to 8 at 14:00, followed by a steady decline to 6 by 15:00. By the time evening sets in, the UV Index drops sharply to 2 at 17:00, and settles at a minimal 1 by 18:00 and 19:00. This hourly data serves as a stark reminder of nature’s powerful rays—stay protected during the midday hours!
| 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 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, impacting sun exposure and skin safety. January and December see a low UV Index of 2, allowing for safer outdoor activities with a burn time of 45 minutes. However, as we progress into February, the UV Index rises to 4 (moderate), with a burn time reduced to 30 minutes. The risk escalates sharply from March to April, where the UV Index reaches 6 (high) and 8 (very high), respectively, demanding more vigilant sun protection. The peak months of May through August experience extreme UV levels of 10 and 9, requiring minimized sun exposure with a mere 15 minutes burn time. After August, the risk gradually decreases, with September at 7 (high) and October at 5 (moderate). During the fall and winter months, residents and visitors should remain cautious but can enjoy the sun safely with proper precautions, especially during high-risk months of April through August. Always apply sunscreen, wear protective clothing, and seek shade during peak hours to minimize UV exposure.
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 |
| Santai | 2 | 4 | 6 | 8 | 10 | 10 | 10 | 9 | 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 |