Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Herong, China, where the sun's rays can be particularly intense. As sunlight exposure increases, so does the risk of sunburn and long-term skin damage, making it essential to monitor UV levels throughout the day. With a Cfa climate, Herong experiences significant UV exposure, especially during peak hours. From 10 AM to 2 PM, the UV Index can soar to 11, indicating extreme levels that require protective measures. By staying informed about the UV Index, you can ensure your skin health and enjoy the outdoors safely!
The UV Index today charts an intriguing journey as the sun makes its ascent. Starting at a mild 1 at 7:00 AM, the UV levels steadily rise, reaching a moderate 3 by 8:00 AM. As the day progresses, the intensity peaks dramatically, hitting 10 at 11:00 AM and soaring to a maximum of 11 at noon and 1:00 PM—a clear signal for sun safety. After this zenith, the index gracefully declines, dipping to 7 by 3:00 PM, before slipping to 2 at 5:00 PM and settling back to a low 1 by evening. It's a vivid reminder of the sun’s power and the importance of taking precautions during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | 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 | 7 | high | 25 min |
| 16:00 | 5 | 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 |