Last updated: June 2, 2025
In Rongtang, China, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn, especially during the peak hours of sunlight. Understanding UV levels helps residents and visitors alike take necessary precautions against harmful radiation. With a humid subtropical climate (Cfa), Rongtang experiences elevated UV exposure, particularly between 11 AM and 1 PM, when the index can soar to a striking 12. By staying informed about the UV forecasts, you can better protect your skin, enjoy the sun safely, and mitigate long-term health risks.
At dawn, the UV Index begins its ascent at a modest 1 by 7:00 AM, reflecting minimal sun risk. As the morning unfolds, it climbs to 3 by 8:00 AM and reaches 6 by 9:00 AM, signaling an increase in sun exposure. The sun peaks at 12 around noon, indicating a high risk of harm from unprotected sun exposure. The intensity remains high at 11 until 1:00 PM, before gradually declining as the afternoon progresses. By 3:00 PM, the index dips to 6, and later, it falls to 2 by 5:00 PM, showcasing a gentle evening retreat from the sun. Finally, the UV Index settles back to 1 by 6:00 PM, signaling a safe end to the day's exposure. Remember to protect your skin during those peak hours from 10:00 AM to 2:00 PM!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | 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 |
The UV Index experiences notable fluctuations throughout the year, with the highest values occurring from March to September. During these months, particularly from May to August, the UV Index reaches an extreme level of 12, indicating a significant risk of harm from unprotected sun exposure with a burn time as low as 10 minutes. High-risk months include March (9), April (10), and October (9), where the exposure is categorized as very high and the burn time is reduced to 15 minutes. Residents and visitors are strongly advised to take precautions during these periods, such as wearing sunscreen, protective clothing, and sunglasses, and seeking shade during peak sun hours to minimize the risk of sunburn and long-term skin damage. As winter approaches, the UV index gradually decreases, with December recording a moderate level of 5, allowing for more relaxed sun exposure guidelines.
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 |
| Rongtang | 6 | 7 | 9 | 10 | 12 | 12 | 12 | 12 | 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 |