Last updated: June 2, 2025
In Yancheng, China, staying informed about the UV Index is crucial for protecting your skin from harmful effects of sun exposure. Understanding UV levels not only helps in preventing sunburn but also contributes to better overall skin health. Yancheng’s Cwa climate brings warm summers and moderate UV exposure, particularly peaking around midday when the UV Index can reach up to 10. By keeping track of these levels, residents and visitors can make informed choices to enjoy the sun safely while minimizing potential risks.
As the sun rises, the UV Index starts low at 2 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. The intensity peaks dramatically at 10:00 AM, reaching an impressive 10—a clear signal for outdoor enthusiasts to take precautions. From 11:00 AM to 1:00 PM, the UV Index remains steady at this maximum level, ensuring that midday sun exposure can be quite harmful. After 2:00 PM, the index begins its descent, dropping to 8 by 2:00 PM and further declining to 5 at 3:00 PM. As the afternoon wanes, the UV Index falls to 3 by 4:00 PM, with evening hours presenting little risk, dipping to 1 at 5:00 PM and finally dropping to 0 by 7:00 PM. Overall, a midday outing requires caution, but post-lunch hours offer safer conditions for sun lovers.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 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 UV levels, necessitating awareness for residents and visitors alike. January and December see a moderate UV Index of 4, with a burn time of 30 minutes, while February ramps up to a high index of 6 (25 minutes). The spring months (March and April) exhibit a marked increase, reaching a very high index of 8 and 9 respectively, with a burn time decreasing to 15 minutes. May and June maintain this very high level (UV Index 10), followed closely by the peak summer months of July and August, which reach an extreme UV Index of 11 and a quick burn time of only 10 minutes. As summer fades into fall, September returns to a very high level of 10, followed by October's high index of 7 (25 minutes). November drops back to moderate levels, ending the year with 5 in November and returning to 4 in December. Residents and visitors are urged to protect themselves during the high-risk months of March through September, particularly from July to August, by seeking shade, wearing protective clothing, and applying sunscreen to minimize the risk of 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 |
| Yancheng | 4 | 6 | 8 | 9 | 10 | 10 | 11 | 11 | 10 | 7 | 5 | 4 |
| 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 |