Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Tongshanjie, China, where sun exposure can vary dramatically throughout the day. With UV levels peaking at 9 between 10:00 AM and 2:00 PM, awareness of these measurements is vital for preventing sunburn and protecting your skin health. Tongshanjie falls under the Dwb climate zone, characterized by distinct seasons and increased UV exposure during the sunny months. By staying informed about the UV Index, you can make smarter choices about sun safety and enjoy the beautiful outdoors with peace of mind.
The UV Index data reveals a dramatic rise in sun exposure as the morning unfolds, starting with a mild 3 at 07:00. By 10:00, the index surges to 9, peaking consistently through 11:00 to 13:00. This intense sunlight, indicated by a UV index of 9, calls for protection against harmful rays. As the afternoon progresses, the index gradually declines, settling at 7 by 14:00, then tapering off to 5 at 15:00. The late afternoon and evening bring a gentle reprieve, with the UV Index dropping to 1 by 17:00 and remaining at this low level through the evening hours. Therefore, it's clear that the midday hours require the most caution, urging sun safety during peak times.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 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 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV Index levels, significantly impacting sun exposure risk. January and December present the lowest UV Index (2), classified as low risk, allowing for relatively safe outdoor activities with a burn time of 45 minutes. However, from February onward, the UV Index rises, reaching moderate risk in February (UV Index 3, 30 min burn time) before escalating to high risk in March (UV Index 6, 25 min burn time). The peak months for UV exposure are June and July, both with a UV Index of 10, categorizing them as very high risk with a burn time of just 15 minutes. Visitors and residents should take extra precautions during these summer months, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours. As fall approaches, the UV Index tapers off, but September still maintains a high level of risk (UV Index 8), while October and November return to moderate risks (UV Index 3, 30 min burn time). Awareness of these seasonal UV changes is crucial for protecting skin health.
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 |
| Tongshanjie | 2 | 3 | 6 | 8 | 8 | 9 | 10 | 10 | 8 | 5 | 3 | 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 |