Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Donglan, China, where the climate zone Cwa presents unique challenges for sun exposure. With UV levels soaring to a peak of 13 around midday, awareness of these fluctuations is essential to prevent sunburn and protect skin health. The intense rays during the hottest hours can lead to severe skin damage if precautions aren’t taken. By keeping informed about the UV Index, you can enjoy Donglan’s sunny days while minimizing the risks associated with high UV exposure.
The UV Index undergoes a notable progression throughout the day, beginning at a gentle 1 at 07:00, before gradually rising to a moderate 2 by 08:00. As the sun ascends, the index climbs sharply, peaking at a dizzying 13 around 13:00—a clear indication that sun protection is essential during these hours. From this pinnacle, the UV Index begins its descent, tapering off to a 9 at 15:00 and finally dwindling to 1 by the evening hours of 18:00 and 19:00. With this data in mind, it's crucial to enjoy the outdoors safely, particularly between 11:00 and 14:00, when the sun's rays are at their most intense.
| 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 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | 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, seasonal UV changes present varying levels of risk to residents and visitors. From January to February, the UV Index starts at 8, categorized as very high, indicating a burn time of just 15 minutes. As we transition into spring, March and April reach an extreme UV Index of 11, with burn times decreasing to 10 minutes. The summer months of May through July peak at an Index of 13 to 14, demanding extreme caution and limiting safe sun exposure to just 10 minutes. August to October sees a slight reduction, yet the UV levels remain in the extreme category at 11 to 13, sustaining the critical 10-minute burn time. In November, the UV Index drops to 8, while December sees it further decrease to 6, categorized as high with a burn time of 25 minutes. For safety, it is advisable for visitors and residents to limit their sun exposure during the high-risk months of March through October, particularly from May to July, and to always use sunscreen and protective clothing during these periods to mitigate 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 |
| Donglan | 8 | 10 | 11 | 11 | 13 | 13 | 14 | 13 | 11 | 11 | 8 | 6 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |