Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Nam, China, particularly given the area's unique Dwc climate, which can lead to heightened UV exposure. As the sun's intensity peaks during midday, reaching levels as high as 16 between 1 PM and 2 PM, awareness of UV levels becomes vital for preventing sunburn and safeguarding overall skin health. Regularly monitoring the UV Index helps you make informed decisions about outdoor activities, ensuring you enjoy the beautiful surroundings of Nam while protecting yourself from potential harm. Whether you’re planning a day out or simply enjoying the sun, being UV-aware is your best defense against the risks of excessive UV exposure.
Throughout the day, the UV Index experiences significant fluctuations, peaking dramatically at 13:00 with a high of 16. Early morning hours reveal a mild UV Index of 1 until 09:00, when it begins to rise gradually, hitting 5 by 10:00. As the sun reaches its zenith, the intensity surges to a striking 13 at 12:00, followed by a peak of 16 from 13:00 to 14:00. The intensity starts to decline after 15:00, settling at 12 by 16:00, and continuing to dip through the evening, concluding at a safe 2 by 19:00. It’s a vivid reminder to protect your skin during those midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 16 | extreme | 10 min |
| 15:00 | 15 | extreme | 10 min |
| 16:00 | 12 | extreme | 10 min |
| 17:00 | 8 | very high | 15 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV radiation levels exhibit significant seasonal fluctuations, with the highest exposure typically occurring from February to September. Notably, March to May marks the peak UV Index, reaching an extreme level of 15 to 17, where the burn time is as short as 10 minutes. January and December present relatively lower risks, but caution is still advised. For those living in or visiting the area, it's crucial to remain vigilant during the high-risk months of February through October. Recommendations include wearing protective clothing, applying broad-spectrum sunscreen regularly, and seeking shade during peak hours, especially from 10 AM to 4 PM, to minimize the risk of sunburn and long-term skin damage.
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 |
| Nam | 8 | 11 | 14 | 15 | 17 | 17 | 16 | 16 | 15 | 12 | 11 | 7 |