Last updated: May 3, 2025
Understanding the UV Index in Shendang, China, is crucial for maintaining optimal skin health and preventing sunburn. With a climate characterized by humid subtropical conditions (Cfa), residents and visitors alike must be aware of daily UV levels to safeguard themselves from potential skin damage. During peak hours, particularly between 10:00 AM and 1:00 PM, UV Index values soar to 11, indicating a very high risk of harm from unprotected sun exposure. This highlights the importance of knowing the UV Index, allowing you to take proactive measures—like wearing protective clothing and sunscreen—to enjoy the sun safely while protecting your skin from its harmful effects.
The UV Index throughout the day presents a dynamic picture of sun exposure. As early as 7:00 AM, the index starts at a mild 2, ramping up to a moderate 4 by 8:00 AM. The sun's intensity peaks around 11:00 AM and 12:00 PM with a striking 11, marking the height of caution for outdoor activities. As we move into the afternoon, the index gradually declines, dropping to 8 by 2:00 PM and further to 5 by 3:00 PM. The evening brings relief, with the UV Index decreasing to a 1 by 5:00 PM and finally hitting 0 by 7:00 PM. It’s clear that the midday hours pose the greatest risk, so sun safety measures are essential during those peak times.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 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 |
The UV Index shows significant seasonal changes, with the most high-risk months occurring from March to September, where values peak at 11 or even 12, indicating extreme exposure levels. Visitors and residents should exercise caution during these months, particularly in April, May, August, and September, when the burn time drops to as little as 10 minutes. It is advisable to protect your skin by wearing sunscreen, donning protective clothing, and seeking shade during peak sun hours. Conversely, in January, February, October, and November, while UV exposure is still a concern, the risk is lower, allowing for a little more lenience, although caution is still warranted. As winter approaches in December, the index reduces to 4, marking a return to a more moderate risk level, but it's still wise to stay vigilant against UV 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 |
| 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 |
| Shendang | 5 | 6 | 9 | 10 | 11 | 11 | 11 | 12 | 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 |