Last updated: June 2, 2025
In Guli, China, staying informed about the UV Index is essential for maintaining skin health and preventing sunburn. Understanding UV levels can help residents and visitors alike take the necessary precautions during peak sunlight hours, especially given the region's Dwc climate, characterized by significant seasonal variation. With UV Index values soaring to 8 from 11 AM to 1 PM, it's crucial to recognize when the sun's rays are strongest and to protect your skin accordingly. By being proactive, you can enjoy outdoor activities while keeping your skin safe from harmful UV radiation.
As the sun rises, the UV Index begins its gradual ascent, starting at a gentle 2 by 7:00 AM. By 8:00 AM, it reaches 4, hinting at the day's potential for sun exposure. The peak occurs around 11:00 AM and 12:00 PM, where the index hits a robust 8, signaling that sun protection is essential during these hours. The afternoon sees a slight decline, with readings at 6 and 4 from 1:00 PM to 3:00 PM, before tapering off to a soft 2 by the end of the day. As the sun sets, the index drops to the lowest points of 1 at 6:00 PM and 7:00 PM, making the late evening safe for a stroll under the fading light.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal changes that affect sun exposure risks. From January to February, the UV Index remains low (1-2), allowing for a safer outdoor experience with a burn time of up to 45 minutes. As spring approaches in March and April, the UV levels rise to moderate (4-5), shortening the safe exposure to 30 minutes. The onset of summer, particularly May through August, marks the period of highest risk, with UV Index values reaching 8 and a burn time plummeting to just 15 minutes—this is the time for extreme caution. Moving into fall, the Index decreases to moderate levels again in September and October, allowing for safer outdoor activities with a 30-minute burn time, before returning to lower levels by November and December (UV Index 1-2). Visitors and residents are strongly advised to take protective measures—such as sunscreen and protective clothing—especially during the high-risk months of May to August to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Guli | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 8 | 5 | 4 | 2 | 1 |
| 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 |