Last updated: June 2, 2025
In Shangchewan, China, awareness of the UV Index is crucial for protecting your skin from harmful ultraviolet rays that can lead to sunburn and long-term health issues. Understanding UV levels helps residents and visitors make informed decisions about sun exposure, especially during peak hours when the indices soar to 11, indicating extreme risk. With a humid subtropical climate characterized by strong sun exposure, Shangchewan experiences heightened UV risks throughout the day, particularly between 10 AM and 2 PM. Stay informed to ensure your skin remains healthy while enjoying this vibrant locale!
The UV Index throughout the day showcases a remarkable rise, peaking impressively at 11 between noon and 1 PM. Starting with a modest 1 at 7 AM, the index escalates to around 3 by 8 AM and rapidly climbs, hitting 5 by 9 AM. The ascent continues as the sun reaches its zenith, soaring to 8 at 10 AM and breaching the 10 mark by 11 AM. As we reach peak sun hours, it stabilizes at 11 for both 12 PM and 1 PM, before gradually descending to 9 at 2 PM and tapering off to 7 by 3 PM. The latter part of the afternoon sees a gentle decline to 4 at 4 PM, finally returning to the morning's low of 1 by 6 PM, and maintaining this relaxed level through 7 PM. It's a vivid reminder of the sun's strength, urging outdoor enthusiasts to stay sun-smart during the intense midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | 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 |
Throughout the year, the UV Index exhibits notable seasonal variations, peaking during the summer months. January and February present a high risk with a UV Index of 6, allowing for only 25 minutes of exposure before burns occur. As we transition into March and April, the risk escalates to a very high category (UV Index 8-10) with a reduced safe exposure time of 15 minutes. This trend continues into May before reaching its most critical peak in June and July, where the UV Index hits 11-12, classified as extreme, allowing just 10 minutes of safe sun exposure. Both August and September maintain a similar high risk before gradually decreasing in October to 8 and November to 7, marking a transition to lower risk months, culminating in December with a moderate category (UV Index 4) and a safer 30 minutes of burn time. Given this data, it is crucial for both visitors and residents to exercise caution and prioritize sun protection during the high-risk months of March through September, especially during summer when the UV exposure can be critical.
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 |
| Shangchewan | 6 | 6 | 8 | 10 | 10 | 11 | 12 | 12 | 10 | 8 | 7 | 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 |