Last updated: May 3, 2025
Understanding the UV Index in Sijiazi, China is crucial for safeguarding your skin and overall health. With peak UV levels reaching up to 7 during midday, awareness of these readings can help you effectively prevent sunburn and long-term skin damage. Sijiazi, characterized by a Dwb climate, experiences significant UV exposure, especially from late spring to early autumn, making it essential for residents and visitors to monitor UV conditions regularly. By staying informed and taking appropriate precautions, you can enjoy the outdoors while protecting your skin from harmful rays.
The UV Index reveals a dynamic pattern throughout the day, peaking delightfully in the late morning. Starting at 7:00 AM with a moderate level of 3, the index steadily climbs until it reaches its zenith at 11:00 AM and 12:00 PM with a strong 7, indicating it’s the perfect time for sunscreen application! As the afternoon progresses, the intensity gradually wanes, dropping to 6 by 1:00 PM, and then descending further to 3 by 3:00 PM. The evening hours offer a gentle relief, with the index cooling down significantly to 1 by 5:00 PM and remaining at that level until dusk. Be mindful of peak UV times and enjoy safe sun exposure!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 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 | 1 | low | 45 min |
Throughout the year, the UV Index experiences notable seasonal fluctuations. From January to February, the UV levels are low (Index 1-2), allowing for longer exposure times without significant risk of sunburn (up to 45 minutes). As spring approaches in March and April, the index rises to moderate levels (Index 4-5), reducing safe exposure to 30 minutes. The high-risk months of May and June, with UV indices of 7, require more precautions, as skin can burn within just 25 minutes. The peak UV exposure occurs in July and August, reaching a very high level of 8, where the burn time drastically shortens to 15 minutes. By September and October, the risk levels drop again to moderate (Index 4-5), with exposure times recovering to 30 minutes. In the low-risk months of November and December, the index drops back to 1-2, allowing safe sun exposure for up to 45 minutes. Visitors and residents should be particularly attentive during the summer months, ensuring they use sunscreen, wear protective clothing, and seek shade to mitigate the effects of intense UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sijiazi | 1 | 2 | 4 | 5 | 7 | 7 | 8 | 8 | 5 | 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 |