Last updated: June 2, 2025
Understanding the UV Index is essential for residents and visitors of Donghua, China, where exposure to harmful ultraviolet rays can significantly impact skin health. With a Dwb climate, characterized by warm summers and cold winters, the intensity of UV radiation can rise dramatically, especially during midday hours. Knowing your UV levels not only helps in preventing painful sunburns but also plays a crucial role in long-term skin protection and overall health. From the peak index of 12 at noon to a modest 1 in the early morning, being informed about the UV Index can empower you to enjoy the outdoors safely while minimizing your risks.
As the sun rises, the UV Index starts off low at 1 by 07:00, gradually climbing to a moderate 2 by 08:00. Things heat up by 09:00, where the index reaches 4, signaling a need for caution. 10:00 brings a sharp surge to 7, followed by a peak of 12 at both 12:00 and 13:00, indicating high levels of UV radiation. As the afternoon unfolds, the index begins to dip, dropping to 11 at 14:00 and then gradually decreasing to 9 by 15:00. By 16:00, the value lowers to 6, and as evening approaches, the levels continue to decline, reaching 3 at 17:00 and finally settling back to 2 by 18:00 and 1 by 19:00. It's a day that emphasizes the importance of sun protection, especially during those peak hours between 10:00 and 14:00.
| 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 | 12 | 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 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes show a clear trend of increasing intensity during the spring and summer months, peaking in May, June, July, and August with an extreme UV Index of 12. The high-risk months are particularly from March to August, where the burn time reduces significantly to as low as 10 to 15 minutes due to the very high to extreme UV levels. Consequently, it is crucial for both visitors and residents to take proactive measures during these months. Sunscreen application, protective clothing, and seeking shade are highly advisable, especially around midday when the sun's rays are most intense. In contrast, the UV Index is relatively lower in the winter months, particularly in January and December, where precautions can be less stringent, though moderate exposure guidelines should still be followed.
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 |
| Donghua | 4 | 5 | 8 | 10 | 12 | 12 | 12 | 11 | 10 | 8 | 5 | 3 |
| 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 |