Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Dachuan, China, where the intersection of a Dwb climate and high sun intensity presents unique risks. Awareness of UV levels is vital for preventing sunburn and maintaining overall skin health, especially during peak hours when the index reaches a maximum of 10 around midday. With typical summer exposure peaking at 9-10, understanding how to protect yourself from harmful UV rays is essential to enjoying the outdoors safely. Make informed choices to safeguard your skin while soaking up the sun in this vibrant region!
The UV Index today starts at a modest 3 at 7:00 AM, suggesting a gentle introduction to sunlight. As the day progresses, it rises sharply, peaking at an intense 10 during the 11:00 AM to 12:00 PM window. This means it’s crucial to protect your skin at this time! Following its midday zenith, the UV Index begins to decline, gently falling to 1 by 5:00 PM, and remaining low for the evening. If you're planning outdoor activities, aim for mid-morning as the sun reaches its highest intensity, but don’t forget your sunscreen!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 10 | 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 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV Index levels, significantly impacting sun exposure risk. January and December present the lowest UV Index (2), classified as low risk, allowing for relatively safe outdoor activities with a burn time of 45 minutes. However, from February onward, the UV Index rises, reaching moderate risk in February (UV Index 3, 30 min burn time) before escalating to high risk in March (UV Index 6, 25 min burn time). The peak months for UV exposure are June and July, both with a UV Index of 10, categorizing them as very high risk with a burn time of just 15 minutes. Visitors and residents should take extra precautions during these summer months, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours. As fall approaches, the UV Index tapers off, but September still maintains a high level of risk (UV Index 8), while October and November return to moderate risks (UV Index 3, 30 min burn time). Awareness of these seasonal UV changes is crucial for protecting skin health.
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 |
| Dachuan | 2 | 3 | 6 | 8 | 8 | 9 | 10 | 10 | 8 | 5 | 3 | 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 |