Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Dachuan, China, where the climate can significantly influence sun exposure safety. With the potential for high UV levels, particularly between 10:00 AM and 2:00 PM, being mindful of sun exposure is essential for preventing sunburn and safeguarding overall skin health. Dachuan's Dwb climate brings a mix of sunny and cloudy days, but during peak UV hours, the risks of harmful effects increase. Staying informed about the daily UV Index can help you protect your skin and enjoy the beautiful outdoors responsibly!
The UV Index data reveals a dramatic rise in sun exposure as the morning unfolds, starting with a mild 3 at 07:00. By 10:00, the index surges to 9, peaking consistently through 11:00 to 13:00. This intense sunlight, indicated by a UV index of 9, calls for protection against harmful rays. As the afternoon progresses, the index gradually declines, settling at 7 by 14:00, then tapering off to 5 at 15:00. The late afternoon and evening bring a gentle reprieve, with the UV Index dropping to 1 by 17:00 and remaining at this low level through the evening hours. Therefore, it's clear that the midday hours require the most caution, urging sun safety during peak times.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 9 | 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 |