Last updated: June 2, 2025
In Dayu, China, being aware of the UV Index is essential for protecting your skin and overall health. The UV Index provides a clear indication of potential sunburn risk, helping residents and visitors alike take necessary precautions during peak hours. Understanding these UV levels is vital for avoiding skin damage and promoting long-term skin health. With Dayu's Dwa climate, characterized by warm summers and ample sunshine, it's crucial to pay attention to the UV Index, especially when levels soar to 9 during midday. By staying informed, you can enjoy the sunshine safely while minimizing the risk of harmful UV exposure.
At dawn, the UV Index starts at a mild 2 at 07:00, gradually rising to a moderate 3 by 08:00. As the morning progresses, the intensity increases; by 09:00, it reaches 5, and peaks at a robust 9 from 11:00 to 13:00—making this the most critical time for sun exposure. Subsequently, the index begins to decline, dropping to 7 at 14:00 and tapering off to 5 by 15:00. As the afternoon transitions into evening, the UV Index steadily decreases to 3 at 16:00 and settles back to 2 by 17:00, eventually winding down to a low 1 by 18:00 and 19:00. This data serves as a reminder to stay sun-safe during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 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 |
Throughout the year, the UV Index undergoes significant changes, indicating varying levels of sun exposure risk. January and December show a low UV Index of 2, with an extended burn time of 45 minutes. However, as we transition into February, the index rises to 4, marking the start of moderate exposure. The risk peaks from March to September, especially in the summer months of June and July, where the UV Index reaches 10—the highest category—with only a 15-minute burn time. These months—particularly from April to August—are categorized as very high risk, making them critical periods for protective measures. As the seasons change into October and November, the UV Index declines again to moderate levels. Visitors and residents are advised to take proactive measures during high-risk months, including using sunscreen, wearing protective clothing, and seeking shade, especially between noon and 4 PM when the sun's rays are strongest.
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 |
| Dayu | 2 | 4 | 6 | 9 | 9 | 9 | 10 | 9 | 8 | 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 |