Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Longba, China, where the climate can lead to significant sun exposure. As UV levels peak around noon, it’s vital to stay informed about the daily UV Index to prevent sunburn and protect skin health. Given Longba’s Cwa climate, which features distinct seasonal variations, awareness of UV exposure risks is essential, particularly during summer months when UV readings can reach as high as 13. By monitoring the UV Index and taking appropriate precautions, you can enjoy the beautiful outdoors safely while minimizing the potential for skin damage.
The UVI hourly data tells an intriguing story of sun exposure throughout the day. Starting with a gentle UV Index of 1 at 7:00 AM, the intensity gradually climbs, reaching 5 by 9:00 AM. As the clock approaches 11:00 AM, the UV Index peeks at a striking 10, but the real heat hits at 12:00 PM with a blistering 12. The sun reaches its zenith at 1:00 PM, displaying a formidable 13. After that, the UV intensity begins to wane, yet still remains significant until about 3:00 PM when it drops to 9. By late afternoon, the index falls toward a safe 4 at 5:00 PM, finally settling back down to a mild 1 by 7:00 PM. It’s a day that reminds us to embrace the sunshine but remain mindful of its powerful rays during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal changes, with particularly high-risk months from March to September. During this period, the UV Index peaks at 13 in June, indicating an extreme risk of harm from unprotected sun exposure, where the burn time can be as little as 10 minutes. February and October are also notable, with a very high exposure category of 8, giving a burn time of 15 minutes. Residents and visitors should take precautions during these months by seeking shade, wearing protective clothing, and applying sunscreen frequently, especially between 10 AM and 4 PM, when UV radiation is strongest. From November to January, visitors can expect lower UV levels, categorized as moderate to high; however, it’s still important to remain vigilant against sun exposure during outdoor activities.
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 |
| Longba | 5 | 8 | 8 | 12 | 12 | 13 | 12 | 12 | 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 |