Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Xishanzui, China, where the high altitude and BSk climate can lead to significant sun exposure. Monitoring UV levels helps prevent sunburn and ensures skin health, as the index peaks at an alarming 11 during midday hours. With varying UV risks throughout the day, becoming aware of these measurements is essential for making informed decisions about outdoor activities. Whether you're out enjoying the warm sun or simply commuting, knowing the UV Index can empower you to protect your skin and enjoy all that Xishanzui has to offer safely.
The UV index throughout the day reveals a dramatic rise in solar intensity. At 7:00 AM, it starts gently at 1, barely a concern for early risers. By 8:00 AM, it climbs to 3, signaling a transition as the sun gains strength. 9:00 AM sees a noticeable jump to 5, urging sun seekers to take precautions. The peak arrives at 12:00 PM and 1:00 PM, where the UV index hits a scorching 11, making it imperative to seek shade and wear protection. As the afternoon progresses, numbers start to decline; 2:00 PM brings a still lofty 9, holding onto that midday heat. By 4:00 PM, it recedes to 5, gradually easing towards evening. Finally, as the day winds down, the index falls to 1 by 7:00 PM, signaling a safe return outside. Stay sun smart!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the year progresses, UV Index levels exhibit significant variations, indicative of increasing risk during the warmer months. Starting with a low UV Index of 2 in January and December, the risk escalates to a moderate index of 4 in February. The high-risk months occur between March and September, peaking at an extreme level of 11 in June, where burn time decreases to just 10 minutes. Visitors and residents should be especially cautious during April, May, June, July, and August, when the UV Index ranges from 8 to 11, categorizing them as very high to extreme exposure. It is essential to engage in protective measures during these months, such as wearing sunscreen, hats, and protective clothing, and seeking shade whenever possible, particularly during peak sunlight 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 |
| Xishanzui | 2 | 4 | 6 | 8 | 10 | 11 | 10 | 10 | 8 | 6 | 3 | 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 |