Last updated: June 2, 2025
In Lanshan, China, being aware of the UV Index is crucial for safeguarding your skin and overall health. The UV levels here can vary significantly throughout the day, peaking at 10 around noon, which highlights the importance of understanding these fluctuations to prevent sunburn and long-term skin damage. Lanshan's humid subtropical climate (Cwa) coupled with its intense sun exposure, particularly during the warmer months, poses unique risks. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while ensuring your skin stays protected!
Throughout the day, the UV Index fluctuated, peaking sharply at 12:00 PM with a maximum value of 10, signaling the most intense sun exposure during midday. As the sun rose, 07:00 AM recorded a mild index of 2, gradually escalating to a moderate 5 by 09:00 AM. The intensity surged to a notable 8 at 10:00 AM, before reaching its zenith at 11:00 AM with 9. Following the peak hour, the index began its descent, dropping to 9 at 1:00 PM and then gradually declining to 7 at 2:00 PM. By late afternoon, the level continued to diminish, landing at 5 by 3:00 PM, and winding down to 2 by 5:00 PM. As evening approached, the UV exposure significantly lessened, tapering off to a mere 1 by 7:00 PM. This data highlights the importance of sun protection during peak hours, particularly between 10:00 AM and 2:00 PM.
| 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 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 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 |
The UV Index exhibits significant seasonal variations, with notable increases in risk from March through October. The high-risk months are April to September, during which the UV Index reaches its peak at 10 or 8, corresponding to a very high exposure category, and the burn time reduces to just 15 minutes. Residents and visitors should be especially vigilant during this interval, employing protective measures such as wearing sunscreen, hats, and sunglasses when outdoors. From January to March and again in November to December, the UV Index is lower, classified as moderate, allowing for a safer sun exposure duration of 30 minutes. Overall, it is essential to remain aware of UV levels and take appropriate precautions, particularly during the intense summer months.
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 |
| Lanshan | 4 | 5 | 7 | 8 | 10 | 10 | 10 | 10 | 9 | 8 | 5 | 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 |