Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Shizi, China, where sunny days can lead to significant sun exposure. Being informed about UV levels is essential for preventing sunburn and protecting your skin's health, especially during peak hours when the UV Index reaches as high as 12 between noon and 1 PM. Shizi’s humid subtropical climate (Cfa) means warm temperatures and increased UV radiation, emphasizing the importance of monitoring these levels to stay safe while enjoying outdoor activities. Make sure you’re equipped with the knowledge to enjoy the sun safely!
The UV Index throughout the day showcases a clear escalation in sun intensity as the hours progress. Starting at 07:00 with a mild index of 1, it gradually climbs to 2 by 08:00 and significantly ramps up to 4 at 09:00. The sun reaches its peak at 12:00, soaring to a blistering 12, and maintains that level for the next hour, providing strong reminders for safety. As the day wanes, the index declines, dropping to 10 at 14:00 and then easing into 8 by 15:00, before returning to a more manageable 3 by 17:00. As evening approaches, the index gently settles back to 1, highlighting the importance of sun protection during those peak midday hours. Enjoy the sun, but remember to stay safe!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV index experiences significant seasonal variations, with high-risk months primarily occurring from March to September. In March, the UV index escalates to 9 (very high), reducing burn time to just 15 minutes, while April through August reach 12 (extreme), necessitating a mere 10 minutes of exposure before risking burns. As summer wanes, September sees a decrease to 11 (extreme), followed by a return to high categories in October (9) and November (7), with burn times increasing to 15 and 25 minutes respectively. Visitors and residents should be particularly cautious during the spring and summer months by wearing protective clothing, applying sunscreen, and seeking shade during peak hours to minimize UV exposure and skin damage. In contrast, winter months see lower UV levels, with December dropping to 5 (moderate), allowing for safer outdoor activities.
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 |
| Shizi | 6 | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 11 | 9 | 7 | 5 |
| 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 |