Last updated: May 3, 2025
In Chendai, China, understanding the UV Index is crucial for protecting yourself and your loved ones from harmful ultraviolet rays. As a region with a Cfa climate, Chendai experiences significant UV exposure, reaching a peak index of 12 during midday hours, indicating an extreme risk of harm from unprotected sun exposure. Monitoring UV levels is essential not only for preventing sunburn but also for safeguarding your skin health and minimizing the long-term effects of UV radiation. By being aware of these levels, you can take proactive steps to enjoy outdoor activities while staying safe under the sun.
The UV Index today begins its ascent at 7:00 AM with a mild reading of 2, signaling a gentle start to the day. By 8:00 AM, it climbs to 3, offering slight caution for those stepping outside. The index picks up pace around 9:00 AM, reaching 6, and by 10:00 AM, it spikes sharply to 9, suggesting a more serious need for sun protection. The peak occurs between 11:00 AM and 1:00 PM, where it holds steady at a striking 12, indicating very high UV levels that demand vigilance. Post-1:00 PM, the UV Index gradually descends; at 2:00 PM, it drops to 9, then to 6 by 3:00 PM. As the afternoon wanes, the readings continue to fall, reaching 3 by 4:00 PM, 2 by 5:00 PM, and tapering down to just 1 at 6:00 PM. Finally, the day ends on a low note with a 0 at 7:00 PM—a stark reminder of the sun's fleeting power as it sets.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index demonstrates significant seasonal variation, with the highest levels observed from March to September. This period includes high-risk months such as February through September, where the UV Index peaks at 13, categorizing it as extreme and resulting in a burn time of just 10 minutes. Residents and visitors are strongly advised to take protective measures during these months, including wearing sunscreen, protective clothing, and seeking shade—especially during midday hours when UV exposure is at its peak. As we transition into October and November, although the UV Index remains at 10 and 9 respectively, which still classifies as very high, individuals should continue to exercise caution, especially if participating in outdoor activities. In contrast, January and December see a return to high UV levels, with longer burn times of 25 minutes, yet vigilance is warranted as UV rays can still cause harm.
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 |
| 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 |
| Chendai | 7 | 10 | 12 | 13 | 12 | 13 | 13 | 13 | 12 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |