Last updated: July 2, 2025
Understanding the UV Index is crucial for protecting your skin in Rongshui, China, where sun exposure can be significant, especially during peak hours. The UV Index measures the strength of ultraviolet radiation, which can lead to sunburn and long-term skin health issues if not managed properly. Rongshui experiences a humid subtropical climate (Cfa) with varying UV levels throughout the day. With maximum UV Index values soaring to 13 around noon, residents and visitors alike must be vigilant about sun protection strategies to prevent harmful effects and enjoy the outdoors safely.
As the sun rises over the horizon, the UV Index begins its climb, starting at a mild 1 at 7:00 AM. By 9:00 AM, it jumps to 5, signaling a need for some sun protection. The intensity peaks dramatically at 12:00 PM, reaching a scorching 13—the perfect reminder to seek shade and apply sunscreen! The afternoon sees a gradual decline, with the index dropping to 9 at 3:00 PM, then tapering off further to 1 by 7:00 PM. This hourly progression highlights the importance of staying vigilant during those midday hours when UV exposure is at its highest, ensuring you have a safe and enjoyable day outdoors.
| 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 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | 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 |
Throughout the year, UV exposure varies significantly, peaking during the summer months when the UV Index reaches its highest levels. January and December feature a high UV Index of 7 and 6, respectively, allowing for longer burn times of 25 minutes. As we move into February, the Index rises to 8 (very high), reducing burn time to 15 minutes. The real high-risk period occurs from March to September, where the UV Index escalates to 11 to 13 (extreme), demanding vigilant sun protection with burn times as short as 10 minutes. Particularly critical months include May, June, July, and August, where the Index hits 12 and 13. As autumn approaches, the UV Index decreases, with October and November reverting to very high levels but with slightly longer burn times. Residents and visitors are strongly advised to take precautions such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours, especially from March to September, to mitigate the risk of harmful UV exposure.
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 |
| Rongshui | 7 | 8 | 11 | 11 | 12 | 12 | 13 | 13 | 11 | 10 | 8 | 6 |
| 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 |