Last updated: June 2, 2025
Understanding the UV Index is essential for residents and visitors in Jianyi, China, where the climate often presents significant sun exposure challenges. Being aware of UV levels helps prevent sunburn and protects skin health, allowing you to enjoy the outdoors while minimizing risks. Jianyi experiences a Dwa climate, which means you can encounter high UV levels, particularly from late morning to early afternoon. With maximum UV Index values soaring to 10 around noon, it's crucial to take precautions and stay informed about daily UV fluctuations. Stay safe and shield your skin by knowing when to seek shade!
The UV Index rises steadily throughout the morning, reaching its peak at 11:00 AM and 12:00 PM with a value of 10—indicating very high UV exposure. Early risers will see a more moderate index of 2 at 7:00 AM, gradually climbing to 6 by 9:00 AM. As the sun hits its zenith, it's crucial to take precautions, especially around the noon hour. By the afternoon, the index begins to decline, dropping to 5 at 3:00 PM, then falling to 1 by 6:00 PM and remaining there until sunset. Remember to protect your skin during the peak hours when the sun's rays are strongest!
| 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 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, impacting safe sun exposure times. January and December present the lowest risk with UV Index values of 2 (low exposure), allowing for up to 45 minutes of safe sun exposure. As we transition into February, the UV Index rises to 3 (moderate exposure), reducing safe burn time to 30 minutes. The months of March to September pose greater risks, particularly April, May, June, and July, where UV Index values peak at 10 and 11 (very high to extreme), allowing only 10-15 minutes of safe exposure – making July the highest-risk month. As summer concludes in August and September, the UV Index slightly decreases but remains high. In October and November, conditions become milder again. Residents and visitors are advised to take precautions during high-risk months, including wearing sunscreen, protective clothing, and seeking shade whenever possible, especially when the UV Index exceeds 6.
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 |
| Jianyi | 2 | 3 | 6 | 8 | 8 | 10 | 11 | 10 | 8 | 6 | 3 | 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 |