Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Tangnan, China, where the climate, classified as Cfa, brings warm summers and a significant risk of UV radiation. Being mindful of UV levels not only helps in preventing sunburn but is also essential for maintaining overall skin health. With peak UV indices reaching 11 around noon, Tangnan experiences intense sun exposure, making it vital for everyone to stay informed and protect themselves from potential skin damage. Embrace the sun safely by staying aware of the UV Index and taking appropriate precautions!
The UV Index data reveals a clear pattern in solar exposure throughout the day. Morning rays begin gently, with a maximum of 2 at 07:00, steadily rising to 4 by 08:00. As the sun climbs higher, the index peaks at an impressive 11 at 12:00, indicating a moment of intense UV radiation. Temperatures remain elevated with a 10 at 11:00 and 13:00, before gradually declining to 8 by 14:00. The afternoon light softens, dropping to 6 by 15:00, then continues to retreat as the sun sets—falling to 3 at 16:00, 2 at 17:00, and reaching 1 by 18:00 and 19:00. This data underscores the importance of protecting your skin during the peak hours, especially between 10:00 and 14:00, when the UV Index is at its 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 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | 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, reflecting the varying intensity of ultraviolet radiation throughout the year. January and December experience moderate UV levels, with burn times of 30 minutes, while February sees an increase to high levels, prompting reduced exposure of just 25 minutes. The high-risk months are from March to August, where the UV Index peaks at 11 during June and July, classifying these months as having extreme exposure risk and requiring careful management of sun exposure, with a burn time of only 10 minutes. Visitors and residents should ideally plan outdoor activities for early mornings or late afternoons, seek shade during peak sun hours, and use sun protection, such as broad-spectrum sunscreen, hats, and sunglasses, particularly during March through August when burn times are significantly shorter. As fall and winter approach, the UV index gradually decreases, making outdoor time less risky, but caution is still advised during the transitional months.
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 |
| Tangnan | 5 | 6 | 8 | 10 | 10 | 11 | 11 | 10 | 10 | 8 | 5 | 4 |
| 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 |