Last updated: July 2, 2025
Understanding the UV Index in Mazhan, China, is crucial for safeguarding your skin and overall health. With the region's Cwb climate resulting in varying UV exposure levels throughout the day, being aware of these changes is vital for preventing sunburn and protecting against long-term skin damage. The UV Index peaks sharply around midday, reaching an alarming 15, highlighting the urgent need to take precautions during these hours. By staying informed about the UV levels, residents and visitors can enjoy the sunny weather while minimizing risks associated with overexposure to harmful UV radiation.
At dawn, the UV Index begins gently, peaking at 1 by 08:00. As the sun ascends, the intensity increases dramatically; by 10:00, it reaches 6, and shortly after, at 11:00, it surges to a striking 10. The peak intensity is observed between 12:00 and 14:00, where it hits an impressive 15. Following this zenith, the index gradually declines, dipping back to 6 by 17:00 and falling to a soft 1 by sunset at 19:00. It's a reminder of the sun's power, encouraging us to take precautions during midday and revel in the gentler rays at the edges of the day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV radiation displays significant seasonal variation. January and December start the year with a UV Index of 7, categorized as high, necessitating a burn time of 25 minutes under direct sunlight. As the year progresses, February reaches a UV Index of 9 (very high) with a shorter burn time of 15 minutes, escalating dramatically from March to October where the UV Index hits its peak at 15 during the summer months. This period is classified as extreme, with a critical burn time of just 10 minutes. September and October begin to taper slightly but still remain in the extreme range, with October at 12. Finally, November reduces again to 9. For visitors and residents, it is crucial to be particularly vigilant between February and October, when UV levels are at their highest. Protective measures such as sunscreen, hats, and seeking shade should be prioritized during these high-risk months, especially between 11 AM and 4 PM when the sun’s rays are most intense.
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 |
| 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 |
| Mazhan | 7 | 9 | 11 | 13 | 14 | 15 | 15 | 15 | 14 | 12 | 9 | 7 |