Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Jiulong, China, where the subtropical climate brings both warmth and significant sun exposure. With UV levels peaking during midday, it’s essential to be aware of these daily fluctuations to prevent sunburn and protect your skin health. During the hottest months, Jiulong can see a maximum UV Index soaring to 12, indicating extreme risk of harm from unprotected exposure. Being informed about the UV Index helps you take necessary precautions, ensuring safe outdoor activities while enjoying the beauty of this vibrant region.
The UV Index begins its rise at 7:00 AM with a low of 2, gradually climbing to a moderate 3 by 8:00 AM. By 9:00 AM, it reaches 6, but it's at 10:00 AM when the sun truly bears down, peaking at a high of 9. The intensity continues to soar, hitting a maximum of 12 at 12:00 PM, making it the most UV-active hour of the day. From there, it subtly declines, dropping back to 11 at 1:00 PM, and 9 at 2:00 PM. The afternoon brings relief as the index falls to 6 by 3:00 PM and continues to decrease, settling at 4 by 4:00 PM. As the day winds down, the UV Index dips to 2 by 5:00 PM and further to a safe 1 by 6:00 PM and stays consistent through 7:00 PM. Stay sun-smart and avoid peak UV hours for your skin's safety!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | 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 exhibits a notable seasonal variation throughout the year, peaking in the summer months. From January through February, the UV Index ranges from 6 to 7, indicating a high risk of harm from unprotected sun exposure, with a burn time of 25 minutes. The risk escalates sharply in March and April to an index of 10, classified as very high, with a reduced burn time of just 15 minutes. The months of May to August present the highest risks, with an extreme UV Index of 11 to 12 and a burn time of only 10 minutes, marking this period as the most critical for sun protection. The risk diminishes slightly in September (UV Index 10) and October (UV Index 9), where the burn time increases to 15 minutes but still remains significant. By November, the UV Index drops to 7 and returns to a high risk, while December sees a further decrease to 5, categorized as moderate with a burn time of 30 minutes. Visitors and residents are strongly advised to take protective measures during high-risk months, especially from March to August, including wearing sunscreen, protective clothing, and seeking shade to minimize 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 |
| Jiulong | 6 | 7 | 10 | 10 | 11 | 12 | 12 | 12 | 10 | 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 |