Last updated: June 2, 2025
Understanding the UV Index in Jiushan, China, is crucial for maintaining skin health and preventing sunburn. With a climate characterized by cold winters and warm summers, the UV exposure can vary significantly throughout the year, posing risks especially during peak sunlight hours. The UV Index in Jiushan reaches a maximum of 10 at noon, indicating a high risk of harm from unprotected sun exposure. By staying informed about the day's UV levels, residents and visitors can take proactive steps to protect their skin, ensuring safe and enjoyable outdoor experiences.
The UV Index data reveals a dynamic pattern throughout the day, peaking during the midday sun. At 7:00 AM, the index starts modestly at 2, gradually climbing to 3 by 8:00 AM. As the sun rises higher, the 9:00 AM reading hits 5, but things really heat up by 10:00 AM with a stunning peak of 8. The intensity reaches its zenith at 12:00 PM, soaring to 10, before beginning a gradual decline. By 1:00 PM, the value slips to 9, followed by a descent to 8 at 2:00 PM. The late afternoon sees a drop to 6 at 3:00 PM, and by 4:00 PM, the index further diminishes to 3. As the sun sets, the numbers continue to dwindle to 1 by 6:00 PM, settling at 1 just before nightfall at 7:00 PM. It's clear that during the core hours, sun protection is essential!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, indicating varying levels of sun exposure risk throughout the year. From January to February, the UV levels are moderate (3-5), allowing for longer safe exposure times of about 30 minutes. However, as we move into March and through summer months, the UV Index soars to high (7) and very high (8-10) levels, particularly from April to August, when the burn time decreases sharply to just 15 minutes. September marks a slight decline in UV intensity but remains very high at 8. In contrast, October through December sees a return to moderate levels, with burn times reverting to 25-30 minutes. Visitors and residents should exercise caution during the high-risk months of April through September, taking protective measures such as wearing sunscreen, hats, and sunglasses, and seeking shade during peak sun hours to minimize skin damage.
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 |
| Jiushan | 3 | 5 | 7 | 8 | 9 | 10 | 10 | 10 | 8 | 7 | 4 | 3 |
| 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 |