Last updated: July 2, 2025
Understanding the UV Index in Heihe, China is crucial for protecting your skin and maintaining overall health. With the city’s Dwb climate, residents and visitors alike face varying UV levels throughout the day, peaking around midday at a significant 8 on the Index. Awareness of these UV levels plays a vital role in preventing sunburn and minimizing long-term skin damage. As you navigate the sunniest hours, knowing when to seek shade or apply sunscreen can make all the difference in enjoying the beautiful outdoor environment Heihe has to offer. Stay informed and embrace the sun safely!
The UV Index today presents a dynamic pattern, peaking between 11:00 AM and 12:00 PM with a maximum value of 8, indicating a high risk of harm from unprotected sun exposure. As the day begins, the index starts at a modest 3 at 7:00 AM, gradually rising to 4 by 8:00 AM. By 9:00 AM, it climbs to 6, and shortly after, by 10:00 AM, it reaches 7. However, a steady decline is observed post-noon, dropping to 6 at 2:00 PM, further decreasing to 4 by 3:00 PM, and then tapering off significantly to 1 by 4:00 PM and beyond. This trend emphasizes the importance of seeking shade or applying sun protection especially during peak hours. Stay safe and enjoy the sunshine responsibly!
| 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 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences notable seasonal fluctuations. From January to February, the UV levels are low (Index 1-2), allowing for longer exposure times without significant risk of sunburn (up to 45 minutes). As spring approaches in March and April, the index rises to moderate levels (Index 4-5), reducing safe exposure to 30 minutes. The high-risk months of May and June, with UV indices of 7, require more precautions, as skin can burn within just 25 minutes. The peak UV exposure occurs in July and August, reaching a very high level of 8, where the burn time drastically shortens to 15 minutes. By September and October, the risk levels drop again to moderate (Index 4-5), with exposure times recovering to 30 minutes. In the low-risk months of November and December, the index drops back to 1-2, allowing safe sun exposure for up to 45 minutes. Visitors and residents should be particularly attentive during the summer months, ensuring they use sunscreen, wear protective clothing, and seek shade to mitigate the effects of intense UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Heihe | 1 | 2 | 4 | 5 | 7 | 7 | 8 | 8 | 5 | 4 | 2 | 1 |
| 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 |
| 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 |