Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Longchuan, China, as it plays a vital role in protecting your skin from harmful sun exposure. With peak UV levels reaching an alarming 16 during midday, awareness can make a significant difference in preventing sunburn and promoting long-term skin health. Longchuan's Cwb climate results in unique weather patterns that can intensify UV radiation, demanding vigilance when enjoying outdoor activities. By staying informed about daily UV index levels, you can take proactive steps to safeguard your skin and fully embrace the beauty of your surroundings, no matter the season.
The UV Index throughout the day showcases a striking pattern of intensity, peaking dramatically at 12:00 PM with a maximum index of 14. Early morning hours are gentle, with readings of just 1 at 07:00 and 08:00, ideal for outdoor activities without much sun protection. However, as the day progresses, the UV levels surge, escalating to 11 by 11:00 AM and reaching their zenith at 1:00 PM with a staggering 16. Post-noon, a gradual decline ensues, dropping to 8 by late afternoon and sinking to a safer 2 by 6:00 PM, before wrapping up the day at 1 as dusk approaches. Stay vigilant and protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 4 | 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 | 12 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variations, reaching its peak during the warmer months. From March to October, the UV Index is consistently in the extreme range, with values peaking at 16 in July. This period represents the highest risk months for UV exposure, necessitating a burn time of just 10 minutes for unprotected skin. While January and February still maintain a very high UV Index of 8 and 9 respectively, the risk drastically increases in late spring and summer. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during peak hours from 10 AM to 4 PM. As winter approaches, the UV Index decreases, presenting a lower risk with a high index of 7 in December and a more forgiving burn time of 25 minutes.
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 |
| Longchuan | 8 | 9 | 12 | 13 | 14 | 15 | 16 | 15 | 13 | 12 | 9 | 7 |