Last updated: May 3, 2025
In Chahannao, China, understanding the UV Index is crucial for protecting your skin and overall health. With high UV levels peaking at 10 around noon, awareness of these fluctuations can help prevent sunburn and long-term skin damage. Given its semi-arid BSk climate, Chahannao experiences significant sun exposure, making it essential for residents and visitors alike to stay informed about daily UV risks. By keeping an eye on the UV Index, you can enjoy outdoor activities safely and ensure your skin remains healthy and protected year-round.
The UV Index throughout the day displays a distinct pattern of increasing and decreasing intensity. Starting at a modest 2 at 07:00, the index gradually rises, reaching a moderate level of 3 by 08:00. However, the sun really begins to shine at 09:00, skyrocketing to a notable 5. By 10:00, it hits 7, and between 11:00 and 12:00, we experience the peak UV Index of 10, where sun safety becomes essential! After the zenith at 13:00, the numbers begin their descent, dropping to 8 by 14:00 and then tapering off further to 6 at 15:00. As the afternoon fades, the UV Index dwindles to a soft 4 at 16:00, before settling to a gentle 2 at 17:00 and finally a low 1 for the evening hours, signifying the day's retreat into twilight. Remember to prioritize sun protection during the peak hours when the sun's rays are most intense!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As we observe seasonal changes in UV exposure, it's important to note that high-risk months generally occur from April to August. During these months, the UV Index peaks, reaching 11 (extreme) in June and July, with respective burn times as low as 10 minutes. March and September also present significant UV levels, marking a transition with indices of 6 and 8 respectively, resulting in shorter burn times of 25 and 15 minutes. It's crucial for both visitors and residents to take precautions during these months, such as seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize skin damage. In contrast, the UV Index drops to low in January and December, allowing for more extended outdoor exposure times of 45 minutes with fewer risks. Always stay informed about daily UV forecasts to adjust your sun safety practices accordingly.
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 |
| Chahannao | 2 | 4 | 6 | 9 | 10 | 11 | 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 |