Last updated: June 2, 2025
Understanding the UV Index in Guoyuan, China, is crucial for safeguarding your skin. With its Cfa climate, Guoyuan experiences a range of UV exposure throughout the day, particularly peaking at maximum levels of 10 from late morning to early afternoon. Being aware of UV levels helps prevent sunburn and promotes long-term skin health, making it essential to check the UV Index regularly. During peak hours, especially around 11 AM to 1 PM, the risk of harmful UV radiation increases significantly, emphasizing the need for protective measures. Stay informed and take action to enjoy the sun safely!
As the sun rises, the UV Index starts low at 2 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. The intensity peaks dramatically at 10:00 AM, reaching an impressive 10—a clear signal for outdoor enthusiasts to take precautions. From 11:00 AM to 1:00 PM, the UV Index remains steady at this maximum level, ensuring that midday sun exposure can be quite harmful. After 2:00 PM, the index begins its descent, dropping to 8 by 2:00 PM and further declining to 5 at 3:00 PM. As the afternoon wanes, the UV Index falls to 3 by 4:00 PM, with evening hours presenting little risk, dipping to 1 at 5:00 PM and finally dropping to 0 by 7:00 PM. Overall, a midday outing requires caution, but post-lunch hours offer safer conditions for sun lovers.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 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 | 0 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal fluctuations. From January to February, there is a gradual increase in UV radiation, moving from a moderate index of 4 to a high index of 6. As spring approaches, the UV levels spike dramatically, peaking at an extreme UV index of 11 in July and August, where the burn time falls to as little as 10 minutes. The high-risk months for UV exposure are from March to September, particularly the peak summer months when UV levels are at their highest. Visitors and residents are advised to take precautions during these months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize the risk of skin damage. As autumn and winter roll in, the UV Index gradually decreases, making it safer for outdoor activities with less intensive sun protection needed.
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 |
| Guoyuan | 4 | 6 | 8 | 10 | 10 | 10 | 11 | 11 | 10 | 8 | 5 | 4 |
| 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 |