Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Jianshui, China, where the sun can be both a source of warmth and a risk to your skin health. With peak UV levels soaring to a hazardous 14 during midday, being aware of these measurements can help prevent sunburn and long-term skin damage. Jianshui's Cwb climate also means that, although daytime temperatures can be pleasant, the high UV exposure can pose significant health risks. By staying informed about local UV levels, you can enjoy the sunny days while protecting your skin properly. Remember, awareness is your best defense against harmful UV rays!
The UV Index throughout the day showcases a striking pattern of intensity. Starting with a maximum of 1 at 7:00 AM, the sun rises steadily as the index climbs to 2 by 8:00 AM. By 9:00 AM, the UV intensity reaches 4, but it truly peaks from 11:00 AM to 2:00 PM with relentless values of 10 and surging to a remarkable 14 by 1:00 PM. As the afternoon progresses, the index begins to taper off, dropping to 11 at 3:00 PM, then sliding down to 8 at 4:00 PM. By evening, a gentle decline continues, ending the day with a 1 at 7:00 PM. This pattern serves as a reminder to embrace sun safety, particularly during those midday hours when protection is most crucial!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal changes, indicating varying levels of sun exposure risk throughout the year. From January to August, the UV Index remains predominantly in the very high to extreme category, peaking in July at a score of 16, with the burn time dropping to just 10 minutes during this period. March through October represents the highest risk months, highlighting the need for heightened sun protection, as exposure in these months can quickly lead to skin damage. Following this peak, the Index gradually decreases, with November and December representing lower risk periods, albeit with caution still advised in November (UV Index 9) and a more manageable December (UV Index 7). Residents and visitors are strongly encouraged to use sunscreen, wear protective clothing, and limit sun exposure during the high-risk months, especially during midday hours, to safeguard their skin against harmful UV rays.
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 |
| Jianshui | 8 | 9 | 11 | 13 | 15 | 14 | 16 | 14 | 14 | 12 | 9 | 7 |