Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Bonan, China, as it serves as a vital tool in promoting skin health and preventing sunburn. With its Cwb climate, Bonan experiences significant UV exposure during the day, peaking at a remarkable 16 around 1 PM. Being aware of daily UV levels helps you take appropriate precautions, safeguarding yourself and your family against the harmful effects of overexposure to the sun. Whether enjoying outdoor activities or simply soaking in the sun, understanding these levels enables you to maintain your skin health and enjoy the beautiful climate responsibly.
As the sun rises, the UV Index begins its ascent, peaking dramatically as the day progresses. At 07:00, it starts at a gentle 1, remaining low until 09:00, when it ticks up to 3. But the real surge begins at 10:00, rocketing to 7 and reaching a critical point of 11 by 11:00. The intensity reaches a scorching 14 at 12:00 and hits its zenith at 13:00 with a blistering 16. Gradually, as the afternoon wanes, the index begins to decline, dropping to 15 at 14:00 and 13 by 15:00. As daylight fades, it settles down to 9 at 16:00, and then gently recedes to 5 by 17:00. The evening brings a much-needed respite, with levels dropping to 2 at 18:00 and returning to a safe 1 by 19:00. Remember to protect your skin during those peak hours when the UV Index hits its highest marks!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 16 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with high-risk months identified between March and October, where the index consistently reaches extreme levels. From March (11) to August (16), individuals should be especially cautious, as the burn time decreases to just 10 minutes during these months. The peak UV Index occurs in July (16), indicating the highest risk of skin damage. As the year transitions into November (9) and December (7), the UV exposure category decreases to very high and high, respectively, allowing for slightly longer safe exposure times. For visitors and residents, it is crucial to take protective measures against UV radiation, especially during these high-risk months. Wearing sunscreen, protective clothing, and seeking shade during peak hours will help mitigate the risks associated with intense sun 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 |
| 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 |
| Bonan | 8 | 9 | 11 | 13 | 15 | 14 | 16 | 15 | 14 | 12 | 9 | 7 |