Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Wujin, China, where the Cwa climate brings a mix of seasonal warmth and sunshine. With daily UV levels soaring to an extreme of 11 during peak hours, awareness of these levels is essential for preventing sunburn and protecting your skin health. As the sun rises, so does the risk of harmful UV exposure, especially between 10 AM and 3 PM when the index is at its highest. By staying informed about the UV Index, you can enjoy Wujin’s beautiful sunny days while safely safeguarding your skin.
The UV Index throughout the day exhibits a dynamic rise and fall in exposure, beginning at a low 1 at 07:00 and climbing steadily as the sun ascends. By 10:00, intensity spikes to 6, reaching its peak at noon with a striking 11—a critical level necessitating sun protection. This high UV exposure remains consistent until 13:00, after which a gradual decline ensues, dropping to 8 by 15:00. As the sun starts to set, the index softens to 3 by 17:00, further descending to a mild 1 by 19:00. It’s essential to stay cautious, particularly during the peak hours of 11:00 and 12:00, to safeguard against harmful rays.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 9 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 8 | very high | 15 min |
16:00 | 6 | high | 25 min |
17:00 | 3 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, peaking during the summer months. From January (UV Index 5) to December (UV Index 4), the levels indicate moderate to high risk in winter, with January, November, and December being relatively safer for outdoor activities. However, as spring arrives, particularly in March (UV Index 8), the risk elevates to very high, and it becomes extreme in the critical months of April through September (UV Index 11), where the burn time drops to just 10 minutes. May often sees the highest UV Index of 12, rendering it one of the highest-risk months. Visitors and residents are urged to take precautions, especially from March to September, by seeking shade, wearing protective clothing, and applying sunscreen regularly when outdoors. As we transition into October, the UV levels decrease, but caution remains advisable until the end of the year.
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 |
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 |
Wujin | 5 | 6 | 8 | 11 | 12 | 11 | 11 | 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 |