Last updated: June 2, 2025
Understanding the UV Index is essential for residents of Shanghudi, China, as it serves as a vital indicator of ultraviolet radiation levels. Awareness of UV levels can help prevent harmful effects like sunburn and long-term skin damage, ensuring better overall skin health for the community. Located in a BWk climate zone, Shanghudi typically experiences intense midday sun, with UV Index values peaking at 9 during summer months. By staying informed about local UV conditions, residents can take proactive measures to safeguard their skin while enjoying the outdoors.
As the sun rises, the UV Index begins to climb, marking a steady ascent from a gentle 2 at 07:00 to a peak of 9 between 11:00 and 13:00. This midday high signifies a time when sun precautions are essential. The intensity then gradually declines, dipping to 8 at 14:00, and further softening to 6 by 15:00. As the afternoon fades, the UV Index continues to drop, reaching 4 at 16:00 and eventually settling at a safe 1 by 18:00 and 19:00. Stay sun-safe during the peak hours to enjoy the sunlight responsibly!
| 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 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 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, the UV Index exhibits significant seasonal changes that impact sun safety for both visitors and residents. January and December feature the lowest UV levels (Index 2), categorized as low, with a burn time of 45 minutes. As spring approaches, from February to April, the UV Index rises, peaking at 7 in April, which is classified as high and results in a burn time of just 25 minutes. The summer months, particularly May through July, present the most critical UV exposure, with indices peaking at 10 in July—designating it as very high—allowing for a burn time of only 15 minutes. As summer transitions to fall, September and October see a decrease, with indices returning to moderate levels of 5 in October, maintaining a burn time of 30 minutes. Notably, May through August represent the high-risk months for UV exposure, during which it is crucial for individuals to implement sun protection measures, such as applying sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shanghudi | 2 | 4 | 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 |