Last updated: May 3, 2025
In Dali Old Town, China, being aware of the UV Index is vital for protecting your skin and maintaining overall health. Understanding UV levels is key not only for preventing sunburn but also for minimizing the risk of long-term skin damage. With a Cwb climate, Dali experiences significant UV exposure, especially during midday hours when the index can peak at an intense 15. By staying informed about UV levels, you can enjoy the stunning scenery without compromising your skin’s health.
The UV Index (UVI) throughout the day exhibits a dramatic rise, peaking at a staggering 15 between 1 PM and 2 PM. Starting from a mild 1 at 7 AM and 8 AM, the sun's intensity escalates quickly, reaching 11 by 11 AM. The real surge occurs during midday, with the UVI climbing to a scorching 14 by noon before hitting its maximum at 1 PM. As afternoon unfolds, the UVI begins to taper off, dropping to 4 by 5 PM, 2 by 6 PM, and returning to a safe 1 by 7 PM. This data underscores the importance of sun protection during the peak hours when UV exposure can be significantly harmful.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 4 | 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 |
The UV Index exhibits significant seasonal fluctuations, indicating that the risk of harmful UV exposure increases markedly from late winter through summer. January and February remain very high at a UV Index of 8 and 9, with a burn time of 15 minutes. However, from March to October, the UV Index reaches extreme levels, peaking at 15 in May and July. During this period, the burn time dramatically decreases to just 10 minutes. The high-risk months are the late spring and summer, specifically from March through September. As a result, both visitors and residents are strongly advised to take precautionary measures during these months, including wearing sunscreen, protective clothing, and seeking shade during peak sun hours. In November, the UV Index drops to 9 again, signaling a return to very high risk, while December sees a further decline to a high level of 7 with a burn time of 25 minutes.
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 |
Dali Old Town | 8 | 9 | 12 | 13 | 15 | 14 | 15 | 14 | 14 | 12 | 9 | 7 |