Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Guangdongdi, China, where the BWk climate brings distinct seasonal variations and significant sun exposure. As UV levels can soar, particularly during midday hours, awareness of these indices helps in preventing sunburn and promotes long-term skin health. With peak UV Index values reaching 9 between 11:00 AM and 1:00 PM, it's essential to take protective measures to minimize the risk of skin damage and other UV-related health issues. Stay informed to enjoy the sunshine safely!
The UV Index reveals a dynamic daylight dance, peaking at a maximum of 9 between 11:00 AM and 1:00 PM—a clear indication that the sun's rays are most potent during these hours. Starting the day with a low 2 at 7:00 AM, the intensity gradually increases, hitting 5 by 9:00 AM and reaching 7 by 10:00 AM. As noon approaches, conditions spike to their highest at 9, maintaining this level for three consecutive hours. After this zenith, the index begins a steady decline, dropping to 5 at 3:00 PM and eventually tapering to a gentle 1 by 6:00 PM. This fluctuating pattern underscores the importance of sunscreen and protection during peak hours to enjoy the sun safely.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels demonstrate significant seasonal changes, indicating varying risks for sun exposure. January and December are characterized by low UV levels (Index 2), allowing for safer outdoor activities with burn times of 45 minutes. As spring approaches, February (Index 3) and March (Index 5) see moderate levels, suggesting a burn time of 30 minutes. The risk escalates sharply from April to August, with peak indices of 9 and 10, marking these months as high-risk for sunburn, requiring protective measures and limiting exposure to 15 minutes during peak hours. As summer wanes into September (Index 7) and October (Index 5), the risk declines again to moderate levels with burn times increasing to 25-30 minutes. Residents and visitors are advised to stay vigilant, particularly from April to August, using sunscreen, hats, and protective clothing to mitigate UV exposure and protect skin health.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Guangdongdi | 2 | 3 | 5 | 7 | 9 | 9 | 10 | 8 | 7 | 5 | 3 | 2 |
| 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 |