Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Hongjiang, China, where the risk of ultraviolet exposure can fluctuate dramatically throughout the day. As a region characterized by its Cfa climate, the sun can be quite intense, especially between 11:00 AM and 1:00 PM, when the UV Index peaks at 12. Being aware of these levels is essential not just for preventing painful sunburns but also for safeguarding long-term skin health. With UV indices reaching high levels, it's vital for the community to take proactive measures to protect themselves from potential skin damage, ensuring safe and enjoyable outdoor experiences year-round.
The UV Index throughout the day showcases a stark increase as the sun rises, starting from a mild 1 at 07:00 and peaking at a striking 12 between 12:00 and 13:00. This significant surge highlights the importance of sun protection, especially during the hours when the index reaches maximal levels of 10 at 11:00 and 11 at 14:00. As the afternoon wanes, the UV Index begins to decline, dropping to 8 by 15:00 and finishing the day with a gentle return to 1 by 19:00. This data serves as a crucial reminder to prioritize sun safety during midday hours when UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 12 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 8 | very high | 15 min |
16:00 | 5 | moderate | 30 min |
17:00 | 3 | moderate | 30 min |
18:00 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
The UV Index experiences significant fluctuations throughout the year, reaching its peak in the summer months. From January (UV Index 6) to December (UV Index 5), the most critical months for UV exposure are April through September, where the index soars to extreme levels (UV Index 11-13) and the burn time shortens to just 10 minutes. February and March also present high risks with very high exposure categories. Residents and visitors should take serious precautions during these months: it's essential to wear protective clothing, apply broad-spectrum sunscreen every two hours, and seek shade, especially during peak hours from 10 AM to 4 PM. In contrast, November and December bring more moderate conditions, allowing for longer exposure times and reduced risk, although caution is still advisable.
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 |
Hongjiang | 6 | 8 | 9 | 11 | 12 | 12 | 13 | 13 | 11 | 9 | 7 | 5 |
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 |