Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Changxin, China, as it plays a vital role in safeguarding skin health and preventing sunburn. With typically high UV exposure, particularly during the midday hours, being aware of these levels can help you make informed choices about sun protection. Changxin's BWk climate brings varying sun intensity, but during peak times (like noon when the UV index can reach 11), the risks increase significantly. Stay informed about the UV Index to enjoy outdoor activities safely while protecting your skin from potential damage.
The UV Index steadily climbs as the day progresses, starting from a mild 1 at 7:00 AM and reaching a peak of 11 by 1:00 PM. Sun-seekers and outdoor enthusiasts should be mindful, as the index hits a high of 10 at 12:00 PM, signaling significant UV exposure. After this peak, the index gradually decreases, dropping to 8 by 3:00 PM, and continuing to decline to 1 by 7:00 PM. For safe sun enjoyment, it’s best to take precautions during those high UV hours, particularly between 11:00 AM and 2:00 PM. Remember to sport your hats and sunscreen!
| 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 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, significantly impacting sun safety for visitors and residents. From January to February, the UV Index remains at a moderate level (3-4), allowing for 30 minutes of sun exposure without significant risk. However, as we move into March, the index spikes to 7, marking the beginning of high-risk months that peak during the summer. In April and May, the index rises to very high levels (8-10), reducing safe exposure time to just 15 minutes. The extreme levels (11) in June and July necessitate even greater caution, permitting only 10 minutes of safe sun exposure. August and September continue to pose risks with very high levels (8-10) before tapering off in October. By November and December, the UV Index falls back to moderate and low categories (4-2), allowing longer burn times of 30 to 45 minutes. Visitors and residents alike should remain vigilant, especially from March through September, employing sun protection strategies such as sunscreen, hats, and seeking shade during peak hours to minimize health risks.
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 |
| Changxin | 3 | 4 | 7 | 8 | 10 | 11 | 11 | 10 | 8 | 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 |