Last updated: June 2, 2025
In Changma, China, understanding the UV Index is crucial for safeguarding your skin against harmful sun exposure. With UV levels peaking at a striking 14 during midday, awareness of these fluctuations can help prevent sunburn and long-term skin damage. Given Changma's BWk climate, characterized by its dry conditions and intense sunlight, it’s vital to stay informed about UV radiation risks. By tracking the UV Index, residents can take proactive measures to protect their skin health and enjoy the outdoors safely.
As the sun rises, the UV Index begins its ascent, starting gently at 1 by 7:00 AM. By 8:00 AM, it climbs to 2, hinting at a warm day ahead. The real action starts at 9:00 AM, when it skyrockets to 4, signifying a strong urge to apply sunscreen. Come 10:00 AM, the UV Index peaks at 7, and by 11:00 AM, it reaches a scorching 10. The maximum intensity occurs at 12:00 PM, soaring to 12, and the index continues to soar to its high of 14 at 1:00 PM and 2:00 PM—the pinnacle of the day’s sun exposure. As the afternoon rolls on, the UV Index gradually declines, returning to 12 at 3:00 PM, then dropping to 9 by 4:00 PM. As evening sets in, the index gently cools down to 6 at 5:00 PM, and finally settles to 3 at 6:00 PM, before winding down to 2 by 7:00 PM—a gentle reminder of the day’s radiant journey.
| 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 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV Index levels show significant seasonal variation, peaking from March to September when the risk of overexposure is highest. March's UV Index reaches 10, classified as very high, quickly ascending to an extreme 14 from May to July. April sees an extreme level of 12, indicating the necessity for stringent sun protection. High-risk months are clearly from March to September, with April to August being particularly hazardous due to their consistently high UV levels and minimal burn times of just 10 minutes. Residents and visitors are advised to take precautions during these months, including wearing sunscreen, protective clothing, and seeking shade to prevent skin damage. As fall approaches, the index decreases, with October at 7 and November and December returning to a moderate risk level. Staying informed and protective year-round is vital to ensuring skin health.
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 |
| Changma | 3 | 6 | 10 | 12 | 14 | 14 | 13 | 13 | 11 | 7 | 5 | 3 |
| 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 |