Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Dongshan, China, as it plays a vital role in protecting against harmful UV radiation. With the region's Dwb climate characterized by warm summers and mild winters, individuals should be aware of the UV levels throughout the day—especially from late morning to early afternoon when the index peaks at 9. By staying informed about UV exposure risks, residents can effectively prevent sunburn and protect their skin health, ensuring safe enjoyment of the vibrant outdoor lifestyle Dongshan offers. Whether you’re relaxing at the beach or engaging in outdoor activities, awareness of the UV Index is your first line of defense against the sun's damaging effects.
As the day unfolds, the UV Index starts at a moderate level of 3 at 7:00 AM, gradually climbing to a peak of 9 between 11:00 AM and 12:00 PM. This midday intensity serves as a reminder for sun safety, urging individuals to don sunscreen and protective clothing. As the afternoon progresses, the index begins to decline, dropping to 6 at 2:00 PM and further down to 4 by 3:00 PM. By the late afternoon and evening, UV exposure wanes significantly, reaching 1 by 5:00 PM and staying low through the night. Whether you're planning outdoor activities or just soaking up the sun, this UV forecast highlights the importance of being mindful of sun safety during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits notable seasonal changes, peaking during the summer months of May through August when it reaches levels categorized as very high. May sees a UV Index of 8, progressing to 9 in both June and July, before slightly declining to 8 in August. These months are particularly high-risk, with significantly reduced burn times of just 15 minutes for unprotected skin. As summer transitions to fall, the UV Index decreases, dropping to 6 in September and moderating to 4 in October, where the burn time increases back to 30 minutes. Residents and visitors are advised to take extra precautions during the high-risk months—wearing sunscreen, protective clothing, and sunglasses to reduce the risk of sun damage, especially during midday hours when the UV radiation is strongest. In contrast, the winter months from November to February present lower UV levels, with January and December categorized as low, allowing for safer outdoor activities without extensive sun protection.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dongshan | 2 | 3 | 4 | 6 | 8 | 9 | 9 | 8 | 6 | 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 |