Last updated: July 2, 2025
In Nanmaizhu, China, staying informed about the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding UV levels not only plays a vital role in preventing sunburn but also contributes to long-term skin health. With a climate characterized by hot summers and a Dwa (humid continental) classification, residents and visitors often face significant UV exposure, particularly around midday when levels can soar to a staggering 11. By recognizing when to seek shade or apply sunscreen, you can enjoy the beautiful outdoors while protecting your skin from potential damage.
The UV Index throughout the day reveals a dynamic shift in sunlight intensity. Early risers will notice a gentle start at 07:00 with a UV Index of 2, climbing steadily as the sun rises. By 10:00, it peaks at a robust 8, reaching its zenith at 12:00 with an intense 11. This is the critical window for sun exposure, making protective measures essential. As the afternoon unfolds, the index gradually decreases, dipping to 6 by 15:00, and further declining to a **soft 2 at 17:00. As evening approaches, the UV Index settles at a comfortable 1, perfect for outdoor activities without the concern of sunburn. Plan your day wisely to enjoy the sunshine while staying safe!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | 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 significant seasonal fluctuations, impacting the level of sun exposure risk for residents and visitors. January and December show the lowest UV levels (Index 2), categorized as low, with a burn time of approximately 45 minutes. As spring approaches, February sees a slight increase to an Index of 3 (moderate) with a burn time of 30 minutes, but it’s in March that the risk escalates to a high Index of 6, reducing burn time to 25 minutes. The most critical months for UV exposure are from April to August, where the Index reaches 8 to 11 and falls into the very high to extreme categories, significantly shortening safe exposure times to just 10-15 minutes in July. September to October offer some relief, but still present high risk levels with an Index of 6-7 and a burn time of 25 minutes. November returns to a moderate risk with an Index of 4. It is crucial for everyone to take necessary precautions—wearing sunscreen, protective clothing, and seeking shade—especially during the high-risk months of April through August.
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 |
| Nanmaizhu | 2 | 3 | 6 | 8 | 9 | 9 | 11 | 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 |