Last updated: June 2, 2025
In Erdao, China, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding the daily UV levels can guide residents and visitors alike in managing their sun exposure effectively, especially during peak hours when the index rises to a maximum of 9 around noon. With Erdao's Dwb climate, characterized by distinct seasonal changes, the UV exposure risks can fluctuate significantly, making it essential to stay informed. By keeping an eye on the UV Index, you can enjoy the beautiful, sunny days in Erdao while protecting your skin from the harmful effects of ultraviolet radiation.
The UV Index climbs steadily throughout the morning, starting at a manageable 3 at 07:00 and surging to a peak of 9 between 10:00 and 12:00. During these hours, sun protection is crucial as the intensity remains high, ideal for outdoor activities if precautions are taken. As the afternoon sets in, the index begins to decline, dropping to 8 by 13:00, and then tapering off to 6 at 14:00. By the afternoon, the risks lessen significantly, with readings falling to 4 at 15:00, and a gentle decline continues into the evening, reaching 1 by 17:00 and finally settling at 0 after 19:00. This pattern emphasizes the importance of maximizing sun safety during the midday hours, where the sun's rays are at their strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
As the seasons change, so do the UV levels, significantly impacting sun safety for residents and visitors. From January to February, the UV Index rises from 2 (low) to 3 (moderate), allowing for longer exposure times before burning occurs, with a burn time of 45 minutes in January decreasing to 30 minutes by February. Spring sees a marked increase, particularly in March and April, where the UV Index reaches 6 (high) and 7 (high), resulting in shorter burn times of just 25 minutes. The summer months, especially July, present the highest risk with an extreme UV Index of 11 and a critical burn time of only 10 minutes. May and June also fall under the very high category, stressing the need for protective measures. As we transition into fall, the UV Index decreases, with October through November returning to a moderate level, making it safer for sun exposure. To protect against sun damage, individuals should take precautions, especially during the high-risk months from March through September, by wearing sunscreen, protective clothing, and seeking shade during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Erdao | 2 | 3 | 6 | 7 | 8 | 9 | 11 | 10 | 8 | 5 | 3 | 2 |
| 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 |