Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Wudalianchi, China, where the Dwb climate can lead to varying levels of sun exposure throughout the year. Knowledge of UV levels is essential not only for preventing sunburn, but also for safeguarding long-term skin health. During peak hours, especially between 10 AM and 2 PM, the UV Index can reach harmful levels, peaking at 8, which poses significant risks for overexposure. Being aware of these trends enables you to take proactive measures, ensuring that your time outdoors is both enjoyable and safe from the dangers of UV radiation.
As the sun rises, the UV Index begins to climb, peaking at a maximum of 8 between 11:00 AM and 12:00 PM. This midday period is crucial for sun safety, with the index suggesting a high risk of harm from unprotected sun exposure. Starting from a mild 3 at 7:00 AM, the index escalates to a moderate 6 at 9:00 AM, and then swiftly reaches 7 by 10:00 AM. After hitting its zenith, the UV levels gradually decline to 6 by 2:00 PM and then continue to drop, falling to 1 by 5:00 PM and remaining low into the evening. Remember, during the peak hours, it’s essential to seek shade, wear protective clothing, and apply sunscreen to minimize the risks associated with UV radiation. The day's progression underscores the significance of UV awareness to ensure both safety and enjoyment in the sun.
| 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 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | 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 |
During the year, the UV Index shows significant seasonal variations, with higher risk of UV exposure primarily from April to September. The months of May through July pose the highest risk, with a UV Index of 8-9, classified as very high, where the burn time is as little as 15 minutes. March and October mark a transition with a moderate UV Index of 4, allowing for a burn time of 30 minutes. In contrast, the winter months (January, February, November, and December) present a low UV Index (1-2) where individuals can safely remain exposed for up to 45 minutes. Visitors and residents are advised to take extra precautions with sun protection, such as applying sunscreen, wearing protective clothing, and seeking shade during the peak times in high-risk months to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wudalianchi | 2 | 2 | 4 | 6 | 8 | 8 | 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 |