Last updated: June 2, 2025
Understanding the UV Index is critical for residents of Changchun, China, as it serves as a vital tool in safeguarding skin health and preventing sunburn. With the city experiencing a Dwa climate, the UV levels can vary significantly throughout the day, peaking at a high of 9 around noon. Being aware of these levels helps you take necessary precautions—such as using sunscreen or seeking shade—to mitigate exposure during the most intense hours. Without this knowledge, the risks increase for adverse effects, including skin damage and long-term health issues. Stay informed and protect your skin while enjoying the beautiful, sunny days that Changchun has to offer!
As the sun rises, the UV Index begins its daily ascent. At 07:00, it starts gently at 2, but by 08:00, it climbs to 4, signaling the need for a bit of sun protection. The intensity peaks between 10:00 and 12:00, reaching a striking 9 at 11:00, making midday the perfect time to seek shade. As the afternoon progresses, the index gradually declines; by 14:00, it drops to 6, and by 15:00, it dips further to 4. In the late afternoon and evening, the UV Index settles down, dropping to 1 by 17:00 and remaining low until sunset at 19:00. Remember, even on lower index days, it's wise to stay sun-smart during peak hours!
| 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 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV levels significantly influence sun safety. From January to March, the UV Index remains relatively low to moderate, with burn times ranging from 30 to 45 minutes. However, as we enter April, the UV Index rises to 7, marking the beginning of high-risk months where exposure becomes more dangerous. The peak occurs during May to August, with an alarming UV Index of 9 and very high exposure risk, allowing for burn times as short as 15 minutes. September sees a slight decrease to a UV Index of 7, still indicating a high risk, before settling back into the moderate category from October to December. Visitors and residents are advised to take extra precautions between April and August by wearing sunscreen, protective clothing, and seeking shade, particularly during peak sun hours, to reduce the risk of UV-related health issues.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Changchun | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 9 | 7 | 4 | 3 | 2 |
| 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 |