Last updated: July 2, 2025
In Dali Old Town, China, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential for preventing sunburn and reducing the long-term risks of skin damage, especially during the peak hours of sun exposure. The Cwb climate of Dali, characterized by its mild yet sunny conditions, can lead to particularly high UV readings, peaking at 15 around midday. As you enjoy the stunning landscapes and vibrant culture of this historic town, staying informed about the UV Index can help you safeguard your skin while embracing the beauty of Dali.
The UV Index for the day reveals an intriguing pattern as the sun ascends in the sky. Starting from a low of 1 at 7:00 AM, it gradually climbs to a moderate 3 by 9:00 AM. As the clock ticks closer to noon, the index skyrockets, reaching a peak of 15 around 1:00 PM and 2:00 PM, where sun protection is crucial. By 3:00 PM, it drops to 12, followed by a steady decline to 5 at 5:00 PM, and finally tapering off to 1 by 7:00 PM. This day serves as a reminder to stay vigilant about sun safety, particularly during the peak hours when the UV exposure is at its highest!
| 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 | 15 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | 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 |