Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Herong, China, where the climate often presents heightened sun exposure risks. With UV levels peaking at a dramatic 11 around noon, it’s vital to comprehend how these levels can impact skin health and increase the likelihood of sunburn. The direct correlation between UV exposure and skin damage makes awareness not just beneficial, but necessary. In Herong's Cfa climate, where warm, sunny days are common, keeping an eye on the UV Index can help you protect your skin while enjoying the outdoors. Stay informed and safeguard your health against UV radiation!
As the sun rises, the UV Index (UVI) begins to climb steadily, starting the day at a mild 1 by 07:00. By 08:00, it reaches 2, indicating a slight increase in UV exposure. The intensity amps up significantly as the morning progresses, peaking at an impressive 11 by 12:00, presenting a strong need for sun protection. The index remains elevated throughout the afternoon, hovering near 10 at 13:00, before gradually tapering off to 4 by 16:00. As the evening approaches, the UV levels decline, returning to a gentle 1 by 19:00. This daily cycle emphasizes the importance of sun safety during those sun-drenched hours!
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | 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 |
As the seasons change, so does the UV Index, which significantly impacts sun exposure. January and February see moderate UV levels with an exposure index of 5, allowing a burn time of about 30 minutes. However, as spring approaches, March through May escalate to very high levels (UV Index 8-10), decreasing burn time to just 15 minutes. June to August marks the peak of summer with extreme UV levels (UV Index 11), where even brief sun exposure of just 10 minutes can lead to burns. In September and October, UV levels remain very high, but slightly decrease, allowing up to 15 minutes of burn time. As we move into the cooler months of November and December, UV risk lowers to moderate and high levels (UV Index 4-6) with a burn time of 25 to 30 minutes. It's crucial for visitors and residents to be vigilant, especially from March through August, and to take protective measures such as wearing sunscreen, hats, and UV-blocking clothing to minimize the risk of skin damage.
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 |
| Herong | 5 | 5 | 8 | 9 | 10 | 11 | 11 | 11 | 10 | 8 | 6 | 4 |
| 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 |