Last updated: May 3, 2025
Awareness of the UV Index is crucial for residents and visitors in Changchun, China, where the climate experiences the characteristic features of a humid continental zone. Understanding UV levels is essential not only for preventing sunburns but also for maintaining long-term skin health, especially during the peak hours of sunlight. With maximum UV exposure typically occurring between 10 AM and 2 PM, when readings can reach an intense 12, it’s important for everyone to take proactive measures to protect their skin against harmful radiation. Stay informed and enjoy the sun safely in this vibrant city!
The UV Index data paints a vivid picture of the sun's intensity throughout the day. Starting at a mild 2 at 07:00, it quickly rises, reaching 4 by 08:00. As the day progresses, the sunlight intensifies, hitting a peak of 12 at 12:00—a time when sun protection is crucial. The afternoon shows a slight decline, with the index dropping to 9 at 14:00 and then decreasing further to 3 by 16:00. By the evening, the UV Index settles down to a mere 1 at 17:00, and it almost vanishes completely by 19:00 with a 0 reading. It's clear that mid-day is the time to stay shaded and safe, while the early morning and late evening offer a kinder touch from the sun.
| 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 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 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 exhibits significant seasonal variation, peaking during the summer months. From January to March, UV levels gradually increase, with February and March categorized as very high, indicating a burn time of just 15 minutes. The UV Index reaches its highest point in April through September, with values peaking at 13 in June and 12 in July and August, all in the extreme category, where even brief sun exposure can lead to burns in just 10 minutes. As fall approaches, numbers begin to decline, but October and November still present very high risk levels, with burn times of 15 minutes. December and January offer a reprieve with high UV levels (10–6), allowing for 25 minutes of exposure. Visitors and residents should take precautions, particularly from April through September, ensuring proper sun protection including sunscreen, clothing, and shade, especially during the peak hours around midday.
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 |
| Changchun | 6 | 8 | 10 | 11 | 12 | 13 | 12 | 12 | 11 | 9 | 8 | 6 |
| 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 |