Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Nandan, China, where the subtropical climate can lead to significant sun exposure. Awareness of UV levels not only aids in preventing sunburn but also plays a vital role in maintaining overall skin health. With peak UV readings soaring as high as 14 between noon and early afternoon, it's essential to know when to seek shade or apply sunscreen. Nandan's climate, characterized by warm summers, presents particular risks during the hottest parts of the day, making it imperative for everyone to stay informed about daily UV fluctuations.
The UV Index today showcases a dynamic journey through the hours, beginning with a gentle rise at 07:00 with a safe level of 1. As the sun climbs higher, a noticeable increase brings the index to 4 by 09:00, before peaking at an intense 14 around 13:00. This midday high of 13 is particularly important, signaling a period of significant UV radiation where protective measures are advisable. As the afternoon progresses, the index starts to dip, dropping to 6 by 16:00 and stabilizing at a comfortable 1 by 18:00. This hourly pattern highlights the importance of staying sun-safe during the intensity of the midday sun, while enjoying lower UV levels later in the day.
| 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 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal changes, peaking during the summer months. From January to February, the UV Index rises from 7 to 9, marking the start of increased exposure risk. The high-risk months for sun exposure are from March to September, where the Index ranges from 11 to 14 in the extreme category. This is particularly important for outdoor enthusiasts, as burn times drop to just 10 minutes during these months. A slight decrease occurs in October and November, with UV Index levels dropping to 8, still classified as very high in November. By December, the UV Index lowers to 6, leading to a return to the high exposure category. To ensure safety, residents and visitors should wear appropriate sun protection such as sunscreen and protective clothing, especially from March to September, and limit sun exposure during peak hours.
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 |
| Nandan | 7 | 9 | 11 | 12 | 13 | 13 | 14 | 13 | 11 | 11 | 8 | 6 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |