Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Donggao, China, as it plays a significant role in maintaining skin health and preventing sunburn. With a humid subtropical climate (Cfa), Donggao experiences varying UV exposure throughout the day, hitting peaks that can reach a high of 12 around midday. This means that during the summer months, the sun can be especially intense, making it essential to monitor UV levels. By staying informed about the UV Index, you can take the necessary precautions, such as wearing sunscreen or protective clothing, to safeguard your skin against the harmful effects of excessive sun exposure.
The UV Index exhibits a notable climb as the sun rises, peaking during the late morning hours. Starting from a mild 2 at 7:00 AM, it quickly rises to a moderate 4 by 8:00 AM. The real intensity hits at 10:00 AM, soaring to 9, before reaching a striking maximum of 12 by 11:00 AM and maintaining that level until 12:00 PM. As the afternoon progresses, there's a gradual decline, with values dropping to 9 at 2:00 PM and easing further to 6 by 3:00 PM. The sun loses its potency late in the day, with the UV Index falling to 3 by 4:00 PM, and ultimately tapering off to 0 by 7:00 PM. It's a reminder to embrace sun safety during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 12 | extreme | 10 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, UV index levels fluctuate significantly, with high-risk months typically spanning from February to September. During this period, the UV index reaches extreme levels of 11-12, creating a burn time of just 10 minutes, particularly from April to August. Notably, March and October also present very high UV indexes (10 and 8 respectively), where burn times decrease to 15 minutes. To ensure safety, visitors and residents are advised to limit sun exposure, especially between 10 a.m. and 4 p.m., and to use broad-spectrum sunscreen with a high SPF, wear protective clothing, and seek shade whenever possible during these months. In contrast, from November to January, the risk is lower with UV indexes ranging from 5 to 7, allowing for longer exposure times without significant risk.
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 |
Donggao | 6 | 8 | 10 | 11 | 12 | 12 | 12 | 12 | 11 | 8 | 7 | 5 |
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 |