Last updated: May 3, 2025
In Yihantong, China, staying aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential, as it helps in preventing sunburn and long-term skin damage. With a Dwb climate, Yihantong experiences significant UV exposure, especially during the midday hours when the index peaks at 8 around 11:00 AM. Being informed about the UV Index can empower you to enjoy the sunny days safely while minimizing the risks associated with intense sunlight.
The UV Index shows a dynamic pattern throughout the day, peaking in the late morning. At 07:00, the index starts at a moderate 3, climbing steadily to 4 by 08:00. As the sun rises higher, it reaches its zenith at 11:00 with an 8, signaling a time for caution and sun protection. After this peak, the index gently declines, hitting 7 at 12:00, then tapering off to 6 by 13:00. By the afternoon, values fall to 5 at 14:00, and continue to drop, hitting 3 at 15:00, and dwindling further to 1 by 17:00. With the sun setting, the UV Index lowers to 0 by 19:00, indicating a safe time as daylight fades. Remember to stay protected during peak hours to enjoy the sunshine safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | 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 |
Throughout the year, the UV Index demonstrates significant seasonal variation, indicating changing risks for sun exposure. January to February shows lower levels of UV radiation, with an index of 2 and 3, categorized as low to moderate risk, where burn times are relatively long at 45 minutes and 30 minutes, respectively. As spring approaches, March and April experience an upward trend, transitioning to a moderate to high risk (UV Index 5 and 6) and shortening burn times to 30 minutes and 25 minutes. The risk peaks sharply in the summer months of May to July, where the index reaches levels of 8 to 10, categorized as very high, and burn times drop dramatically to just 15 minutes. The risk begins to decline in August and September, with an index of 8 and 6 respectively, but remains significant. The UV Index further decreases in October and settles into lower categories during the winter months (November and December), featuring indices of 2 and 1 and longer burn times of 45 minutes. Residents and visitors should exercise caution and prioritize sunscreen application, protective clothing, and limits on sun exposure during the high-risk months of May through September to ensure health and safety under increased UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yihantong | 2 | 3 | 5 | 6 | 8 | 9 | 10 | 8 | 6 | 4 | 2 | 1 |
| 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 |