Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Menglang, China, where the sun's intensity can vary widely throughout the day. With UV levels reaching a maximum of 15 during peak hours, awareness of these levels is essential for sunburn prevention and maintaining skin health. The subtropical climate of Menglang, categorized as Cwa, contributes to heightened UV exposure, making it vital to stay informed and protect your skin when outdoors. By keeping an eye on the UV Index, you can enjoy the sunny days while safeguarding your skin from harmful effects.
At 07:00, the UV Index begins its day at a low 1, making it a safe time for early risers. As the sun climbs higher, it rises steadily, hitting 3 by 09:00. The real intensity bursts forth around 10:00 with a sharp leap to 7, and by 11:00, we reach a striking 11, signaling it's time to seek shade. The peak intensity occurs at 12:00, with the UV Index soaring to an impressive 14, followed closely by a slight dip to 15 at 13:00. The afternoon maintains this high level, remaining at 14 until 14:00 before gradually decreasing. By 15:00, the UV Index drops to 11, followed by a gentle decline to 4 by 17:00. As the sun sets, the index falls to 2 at 18:00 and returns to a safe 1 by 19:00, marking the end of a day with potent solar energy that calls for caution during its peak hours.
| 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 | 7 | high | 25 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels experience significant seasonal variation, with high-risk months predominantly occurring from March to October. During this period, particularly from May to September, the UV index remains consistently at an extreme level (15), presenting the greatest risk of skin damage and requiring vigilant sun protection. In contrast, the winter months (January, February, November, and December) have lower, yet still considerable UV indices, classified as very high with burn times of 15 minutes. Visitors and residents are strongly advised to adopt appropriate sun safety measures, such as wearing sunscreen, protective clothing, and sunglasses, and to limit sun exposure, especially during peak sunlight hours from 10 AM to 4 PM.
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 |
| Menglang | 8 | 10 | 12 | 13 | 15 | 15 | 15 | 15 | 14 | 12 | 10 | 8 |