Last updated: July 2, 2025
In Renhe, China, staying informed about the UV Index is crucial for protecting your skin's health and preventing painful sunburns. The UV Index varies throughout the day, peaking at a level of 12 around noon, which signals extreme risk of harm from unprotected sun exposure. Given Renhe's Cwa climate, characterized by distinct seasons and varying solar intensity, understanding UV levels is essential for residents and visitors alike. Being aware of the UV Index not only aids in planning outdoor activities but also promotes healthier skin habits, ensuring you enjoy the sun safely.
From the early morning hours, the UV Index increased steadily, starting at 2 at 7:00 AM and peaking at an intense 12 by noon. The sun reached its highest intensity around 11:00 AM, with a UV Index of 11, prompting caution for outdoor activities. As the afternoon unfolded, the UV levels began to decline, dropping to 10 at 1:00 PM, then tapering off to 5 by 3:00 PM. By the time evening set in, the index fell further, reaching 1 by 6:00 PM and fading into 1 at 7:00 PM. This hourly progression underscores the importance of sun safety during the midday hours when UV exposure is at its peak.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index shows significant fluctuations, with the highest values occurring during the summer months. From January to February, exposure levels remain moderate (UV Index 3-4), allowing for a burn time of 30 minutes. As we move into March and April, the index rises sharply, reaching high (6) and very high (8) levels, with burn times decreasing to 25 and just 15 minutes, respectively. The months of May through August pose the highest risk, with UV Index readings peaking at 11 and 12 during July and August, where even short exposures can lead to sunburn (10 minutes burn time). After this peak, the index gradually decreases in September (9) and October (7), yet still demands caution with burn times of 15 and 25 minutes. As winter arrives, November and December see a return to moderate levels, albeit with a sustained emphasis on protective measures. Visitors and residents should remain vigilant during the high-risk months of May through August, adopting sun safety protocols like wearing sunscreen, protective clothing, and seeking shade during peak hours.
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 |
| Renhe | 3 | 4 | 6 | 8 | 9 | 10 | 11 | 12 | 9 | 7 | 4 | 3 |
| 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 |